eric6/PyUnit/UnittestDialog.py

changeset 6942
2602857055c5
parent 6908
a56b500d7d2d
child 7071
c9ff30a1acbb
diff -r f99d60d6b59b -r 2602857055c5 eric6/PyUnit/UnittestDialog.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eric6/PyUnit/UnittestDialog.py	Sun Apr 14 15:09:21 2019 +0200
@@ -0,0 +1,1345 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2002 - 2019 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing the UI to the pyunit package.
+"""
+
+from __future__ import unicode_literals
+
+import unittest
+import sys
+import time
+import re
+import os
+
+from PyQt5.QtCore import pyqtSignal, QEvent, Qt, pyqtSlot
+from PyQt5.QtGui import QColor
+from PyQt5.QtWidgets import QWidget, QDialog, QApplication, QDialogButtonBox, \
+    QListWidgetItem, QComboBox, QTreeWidgetItem
+
+from E5Gui.E5Application import e5App
+from E5Gui import E5MessageBox
+from E5Gui.E5MainWindow import E5MainWindow
+from E5Gui.E5PathPicker import E5PathPickerModes
+
+from .Ui_UnittestDialog import Ui_UnittestDialog
+
+import UI.PixmapCache
+
+import Utilities
+import Preferences
+
+
+class UnittestDialog(QWidget, Ui_UnittestDialog):
+    """
+    Class implementing the UI to the pyunit package.
+    
+    @signal unittestFile(str, int, bool) emitted to show the source of a
+        unittest file
+    @signal unittestStopped() emitted after a unit test was run
+    """
+    unittestFile = pyqtSignal(str, int, bool)
+    unittestStopped = pyqtSignal()
+    
+    TestCaseNameRole = Qt.UserRole
+    TestCaseFileRole = Qt.UserRole + 1
+    
+    ErrorsInfoRole = Qt.UserRole
+    
+    def __init__(self, prog=None, dbs=None, ui=None, parent=None, name=None):
+        """
+        Constructor
+        
+        @param prog filename of the program to open
+        @type str
+        @param dbs reference to the debug server object. It is an indication
+            whether we were called from within the eric6 IDE.
+        @type DebugServer
+        @param ui reference to the UI object
+        @type UserInterface
+        @param parent parent widget of this dialog
+        @type QWidget
+        @param name name of this dialog
+        @type str
+        """
+        super(UnittestDialog, self).__init__(parent)
+        if name:
+            self.setObjectName(name)
+        self.setupUi(self)
+        
+        self.testsuitePicker.setMode(E5PathPickerModes.OpenFileMode)
+        self.testsuitePicker.setInsertPolicy(QComboBox.InsertAtTop)
+        self.testsuitePicker.setSizeAdjustPolicy(
+            QComboBox.AdjustToMinimumContentsLength)
+        
+        self.discoveryPicker.setMode(E5PathPickerModes.DirectoryMode)
+        self.discoveryPicker.setInsertPolicy(QComboBox.InsertAtTop)
+        self.discoveryPicker.setSizeAdjustPolicy(
+            QComboBox.AdjustToMinimumContentsLength)
+        
+        self.discoverButton = self.buttonBox.addButton(
+            self.tr("Discover"), QDialogButtonBox.ActionRole)
+        self.discoverButton.setToolTip(self.tr(
+            "Discover tests"))
+        self.discoverButton.setWhatsThis(self.tr(
+            """<b>Discover</b>"""
+            """<p>This button starts a discovery of available tests.</p>"""))
+        self.startButton = self.buttonBox.addButton(
+            self.tr("Start"), QDialogButtonBox.ActionRole)
+        self.startButton.setToolTip(self.tr(
+            "Start the selected testsuite"))
+        self.startButton.setWhatsThis(self.tr(
+            """<b>Start Test</b>"""
+            """<p>This button starts the selected testsuite.</p>"""))
+        self.startFailedButton = self.buttonBox.addButton(
+            self.tr("Rerun Failed"), QDialogButtonBox.ActionRole)
+        self.startFailedButton.setToolTip(
+            self.tr("Reruns failed tests of the selected testsuite"))
+        self.startFailedButton.setWhatsThis(self.tr(
+            """<b>Rerun Failed</b>"""
+            """<p>This button reruns all failed tests of the selected"""
+            """ testsuite.</p>"""))
+        self.stopButton = self.buttonBox.addButton(
+            self.tr("Stop"), QDialogButtonBox.ActionRole)
+        self.stopButton.setToolTip(self.tr("Stop the running unittest"))
+        self.stopButton.setWhatsThis(self.tr(
+            """<b>Stop Test</b>"""
+            """<p>This button stops a running unittest.</p>"""))
+        self.discoverButton.setEnabled(False)
+        self.stopButton.setEnabled(False)
+        self.startButton.setDefault(True)
+        self.startFailedButton.setEnabled(False)
+        
+        self.__dbs = dbs
+        self.__forProject = False
+        
+        self.setWindowFlags(
+            self.windowFlags() | Qt.WindowFlags(
+                Qt.WindowContextHelpButtonHint))
+        self.setWindowIcon(UI.PixmapCache.getIcon("eric.png"))
+        self.setWindowTitle(self.tr("Unittest"))
+        if dbs:
+            self.ui = ui
+            
+            self.debuggerCheckBox.setChecked(True)
+            
+            # virtual environment manager is only used in the integrated
+            # variant
+            self.__venvManager = e5App().getObject("VirtualEnvManager")
+            self.__populateVenvComboBox()
+            self.__venvManager.virtualEnvironmentAdded.connect(
+                self.__populateVenvComboBox)
+            self.__venvManager.virtualEnvironmentRemoved.connect(
+                self.__populateVenvComboBox)
+            self.__venvManager.virtualEnvironmentChanged.connect(
+                self.__populateVenvComboBox)
+        else:
+            self.__venvManager = None
+            self.debuggerCheckBox.setVisible(False)
+        self.venvComboBox.setVisible(bool(self.__venvManager))
+        self.venvLabel.setVisible(bool(self.__venvManager))
+        
+        self.__setProgressColor("green")
+        self.progressLed.setDarkFactor(150)
+        self.progressLed.off()
+        
+        self.discoverHistory = []
+        self.fileHistory = []
+        self.testNameHistory = []
+        self.running = False
+        self.savedModulelist = None
+        self.savedSysPath = sys.path
+        self.savedCwd = os.getcwd()
+        if prog:
+            self.insertProg(prog)
+        
+        self.rxPatterns = [
+            self.tr("^Failure: "),
+            self.tr("^Error: "),
+            # These are for untranslated/partially translated situations
+            "^Failure: ",
+            "^Error: ",
+        ]
+        
+        self.__failedTests = []
+        
+        # now connect the debug server signals if called from the eric6 IDE
+        if self.__dbs:
+            self.__dbs.utDiscovered.connect(self.__UTDiscovered)
+            self.__dbs.utPrepared.connect(self.__UTPrepared)
+            self.__dbs.utFinished.connect(self.__setStoppedMode)
+            self.__dbs.utStartTest.connect(self.testStarted)
+            self.__dbs.utStopTest.connect(self.testFinished)
+            self.__dbs.utTestFailed.connect(self.testFailed)
+            self.__dbs.utTestErrored.connect(self.testErrored)
+            self.__dbs.utTestSkipped.connect(self.testSkipped)
+            self.__dbs.utTestFailedExpected.connect(self.testFailedExpected)
+            self.__dbs.utTestSucceededUnexpected.connect(
+                self.testSucceededUnexpected)
+        
+        self.__editors = []
+    
+    def keyPressEvent(self, evt):
+        """
+        Protected slot to handle key press events.
+        
+        @param evt key press event to handle (QKeyEvent)
+        """
+        if evt.key() == Qt.Key_Escape and self.__dbs:
+            self.close()
+    
+    def __populateVenvComboBox(self):
+        """
+        Private method to (re-)populate the virtual environments selector.
+        """
+        currentText = self.venvComboBox.currentText()
+        self.venvComboBox.clear()
+        self.venvComboBox.addItem("")
+        self.venvComboBox.addItems(
+            sorted(self.__venvManager.getVirtualenvNames()))
+        index = self.venvComboBox.findText(currentText)
+        if index < 0:
+            index = 0
+        self.venvComboBox.setCurrentIndex(index)
+    
+    def __setProgressColor(self, color):
+        """
+        Private methode to set the color of the progress color label.
+        
+        @param color colour to be shown (string)
+        """
+        self.progressLed.setColor(QColor(color))
+    
+    def setProjectMode(self, forProject):
+        """
+        Public method to set the project mode of the dialog.
+        
+        @param forProject flag indicating to run for the open project
+        @type bool
+        """
+        self.__forProject = forProject
+        if forProject:
+            project = e5App().getObject("Project")
+            if project.isOpen():
+                self.insertDiscovery(project.getProjectPath())
+            else:
+                self.insertDiscovery("")
+        else:
+            self.insertDiscovery("")
+        
+        self.discoveryList.clear()
+        self.tabWidget.setCurrentIndex(0)
+    
+    def insertDiscovery(self, start):
+        """
+        Public slot to insert the discovery start directory into the
+        discoveryPicker object.
+        
+        @param start start directory name to be inserted
+        @type str
+        """
+        # prepend the given directory to the discovery picker
+        if start is None:
+            start = ""
+        if start in self.discoverHistory:
+            self.discoverHistory.remove(start)
+        self.discoverHistory.insert(0, start)
+        self.discoveryPicker.clear()
+        self.discoveryPicker.addItems(self.discoverHistory)
+    
+    def insertProg(self, prog):
+        """
+        Public slot to insert the filename prog into the testsuitePicker
+        object.
+        
+        @param prog filename to be inserted (string)
+        """
+        # prepend the selected file to the testsuite picker
+        if prog is None:
+            prog = ""
+        if prog in self.fileHistory:
+            self.fileHistory.remove(prog)
+        self.fileHistory.insert(0, prog)
+        self.testsuitePicker.clear()
+        self.testsuitePicker.addItems(self.fileHistory)
+    
+    def insertTestName(self, testName):
+        """
+        Public slot to insert a test name into the testComboBox object.
+        
+        @param testName name of the test to be inserted (string)
+        """
+        # prepend the selected file to the testsuite combobox
+        if testName is None:
+            testName = ""
+        if testName in self.testNameHistory:
+            self.testNameHistory.remove(testName)
+        self.testNameHistory.insert(0, testName)
+        self.testComboBox.clear()
+        self.testComboBox.addItems(self.testNameHistory)
+    
+    @pyqtSlot()
+    def on_testsuitePicker_aboutToShowPathPickerDialog(self):
+        """
+        Private slot called before the test suite selection dialog is shown.
+        """
+        if self.__dbs:
+            py2Extensions = \
+                ' '.join(["*{0}".format(ext)
+                          for ext in self.__dbs.getExtensions('Python2')])
+            py3Extensions = \
+                ' '.join(["*{0}".format(ext)
+                          for ext in self.__dbs.getExtensions('Python3')])
+            fileFilter = self.tr(
+                "Python3 Files ({1});;Python2 Files ({0});;All Files (*)")\
+                .format(py2Extensions, py3Extensions)
+        else:
+            fileFilter = self.tr("Python Files (*.py);;All Files (*)")
+        self.testsuitePicker.setFilters(fileFilter)
+        
+        defaultDirectory = Preferences.getMultiProject("Workspace")
+        if not defaultDirectory:
+            defaultDirectory = os.path.expanduser("~")
+        if self.__dbs:
+            project = e5App().getObject("Project")
+            if self.__forProject and project.isOpen():
+                defaultDirectory = project.getProjectPath()
+        self.testsuitePicker.setDefaultDirectory(defaultDirectory)
+    
+    @pyqtSlot(str)
+    def on_testsuitePicker_pathSelected(self, suite):
+        """
+        Private slot called after a test suite has been selected.
+        
+        @param suite file name of the test suite
+        @type str
+        """
+        self.insertProg(suite)
+    
+    @pyqtSlot(str)
+    def on_testsuitePicker_editTextChanged(self, path):
+        """
+        Private slot handling changes of the test suite path.
+        
+        @param path path of the test suite file
+        @type str
+        """
+        self.startFailedButton.setEnabled(False)
+    
+    @pyqtSlot(bool)
+    def on_discoverCheckBox_toggled(self, checked):
+        """
+        Private slot handling state changes of the 'discover' checkbox.
+        
+        @param checked state of the checkbox
+        @type bool
+        """
+        self.discoverButton.setEnabled(checked)
+        self.discoveryList.clear()
+        
+        if not bool(self.discoveryPicker.currentText()):
+            if self.__forProject:
+                project = e5App().getObject("Project")
+                if project.isOpen():
+                    self.insertDiscovery(project.getProjectPath())
+                    return
+            
+            self.insertDiscovery(Preferences.getMultiProject("Workspace"))
+    
+    def on_buttonBox_clicked(self, button):
+        """
+        Private slot called by a button of the button box clicked.
+        
+        @param button button that was clicked (QAbstractButton)
+        """
+        if button == self.discoverButton:
+            self.__discover()
+        elif button == self.startButton:
+            self.startTests()
+        elif button == self.stopButton:
+            self.__stopTests()
+        elif button == self.startFailedButton:
+            self.startTests(failedOnly=True)
+    
+    @pyqtSlot()
+    def __discover(self):
+        """
+        Private slot to discover unit test but don't run them.
+        """
+        if self.running:
+            return
+        
+        self.discoveryList.clear()
+        
+        discoveryStart = self.discoveryPicker.currentText()
+        self.sbLabel.setText(self.tr("Discovering Tests"))
+        QApplication.processEvents()
+        
+        self.testName = self.tr("Unittest with auto-discovery")
+        if self.__dbs:
+            venvName = self.venvComboBox.currentText()
+            
+            # we are cooperating with the eric6 IDE
+            project = e5App().getObject("Project")
+            if self.__forProject:
+                mainScript = os.path.abspath(project.getMainScript(True))
+                clientType = project.getProjectLanguage()
+                if mainScript:
+                    workdir = os.path.dirname(mainScript)
+                else:
+                    workdir = project.getProjectPath()
+                sysPath = [workdir]
+                if not discoveryStart:
+                    discoveryStart = workdir
+            else:
+                if not discoveryStart:
+                    E5MessageBox.critical(
+                        self,
+                        self.tr("Unittest"),
+                        self.tr("You must enter a start directory for"
+                                " auto-discovery."))
+                    return
+                
+                workdir = ""
+                clientType = \
+                    self.__venvManager.getVirtualenvVariant(venvName)
+                if not clientType:
+                    # assume Python 3
+                    clientType = "Python3"
+                sysPath = []
+            self.__dbs.remoteUTDiscover(clientType, self.__forProject,
+                                        workdir, venvName, sysPath,
+                                        discoveryStart)
+        else:
+            # we are running as an application
+            if not discoveryStart:
+                E5MessageBox.critical(
+                    self,
+                    self.tr("Unittest"),
+                    self.tr("You must enter a start directory for"
+                            " auto-discovery."))
+                return
+            
+            if discoveryStart:
+                sys.path = [os.path.abspath(discoveryStart)] + \
+                    self.savedSysPath
+            
+            # clean up list of imported modules to force a reimport upon
+            # running the test
+            if self.savedModulelist:
+                for modname in list(sys.modules.keys()):
+                    if modname not in self.savedModulelist:
+                        # delete it
+                        del(sys.modules[modname])
+            self.savedModulelist = sys.modules.copy()
+            
+            # now try to discover the testsuite
+            os.chdir(discoveryStart)
+            try:
+                testLoader = unittest.TestLoader()
+                test = testLoader.discover(discoveryStart)
+                if hasattr(testLoader, "errors") and \
+                   bool(testLoader.errors):
+                    E5MessageBox.critical(
+                        self,
+                        self.tr("Unittest"),
+                        self.tr(
+                            "<p>Unable to discover tests.</p>"
+                            "<p>{0}</p>"
+                        ).format("<br/>".join(testLoader.errors)
+                                 .replace("\n", "<br/>"))
+                    )
+                    self.sbLabel.clear()
+                else:
+                    testsList = self.__assembleTestCasesList(
+                        test, discoveryStart)
+                    self.__populateDiscoveryResults(testsList)
+                    self.sbLabel.setText(
+                        self.tr("Discovered %n Test(s)", "",
+                                len(testsList)))
+                    self.tabWidget.setCurrentIndex(0)
+            except Exception:
+                exc_type, exc_value, exc_tb = sys.exc_info()
+                E5MessageBox.critical(
+                    self,
+                    self.tr("Unittest"),
+                    self.tr(
+                        "<p>Unable to discover tests.</p>"
+                        "<p>{0}<br/>{1}</p>")
+                    .format(str(exc_type),
+                            str(exc_value).replace("\n", "<br/>"))
+                )
+                self.sbLabel.clear()
+            
+            sys.path = self.savedSysPath
+    
+    def __assembleTestCasesList(self, suite, start):
+        """
+        Private method to assemble a list of test cases included in a test
+        suite.
+        
+        @param suite test suite to be inspected
+        @type unittest.TestSuite
+        @param start name of directory discovery was started at
+        @type str
+        @return list of tuples containing the test case ID, a short description
+            and the path of the test file name
+        @rtype list of tuples of (str, str, str)
+        """
+        testCases = []
+        for test in suite:
+            if isinstance(test, unittest.TestSuite):
+                testCases.extend(self.__assembleTestCasesList(test, start))
+            else:
+                testId = test.id()
+                if "ModuleImportFailure" not in testId and \
+                   "LoadTestsFailure" not in testId and \
+                   "_FailedTest" not in testId:
+                    filename = os.path.join(
+                        start,
+                        test.__module__.replace(".", os.sep) + ".py")
+                    testCases.append(
+                        (test.id(), test.shortDescription(), filename)
+                    )
+        return testCases
+    
+    def __findDiscoveryItem(self, modulePath):
+        """
+        Private method to find an item given the module path.
+        
+        @param modulePath path of the module in dotted notation
+        @type str
+        @return reference to the item or None
+        @rtype QTreeWidgetItem or None
+        """
+        itm = self.discoveryList.topLevelItem(0)
+        while itm is not None:
+            if itm.data(0, UnittestDialog.TestCaseNameRole) == modulePath:
+                return itm
+            itm = self.discoveryList.itemBelow(itm)
+        
+        return None
+    
+    def __populateDiscoveryResults(self, tests):
+        """
+        Private method to populate the test discovery results list.
+        
+        @param tests list of tuples containing the discovery results
+        @type list of tuples of (str, str, str)
+        """
+        for test, _testDescription, filename in tests:
+            testPath = test.split(".")
+            pitm = None
+            for index in range(1, len(testPath) + 1):
+                modulePath = ".".join(testPath[:index])
+                itm = self.__findDiscoveryItem(modulePath)
+                if itm is not None:
+                    pitm = itm
+                else:
+                    if pitm is None:
+                        itm = QTreeWidgetItem(self.discoveryList,
+                                              [testPath[index - 1]])
+                    else:
+                        itm = QTreeWidgetItem(pitm,
+                                              [testPath[index - 1]])
+                        pitm.setExpanded(True)
+                    itm.setFlags(Qt.ItemIsUserCheckable | Qt.ItemIsEnabled)
+                    itm.setCheckState(0, Qt.Unchecked)
+                    itm.setData(0, UnittestDialog.TestCaseNameRole, modulePath)
+                    if os.path.splitext(os.path.basename(filename))[0] == \
+                            itm.text(0):
+                        itm.setData(0, UnittestDialog.TestCaseFileRole,
+                                    filename)
+                    elif pitm:
+                        fn = pitm.data(0, UnittestDialog.TestCaseFileRole)
+                        if fn:
+                            itm.setData(0, UnittestDialog.TestCaseFileRole, fn)
+                    pitm = itm
+    
+    def __selectedTestCases(self, parent=None):
+        """
+        Private method to assemble the list of selected test cases and suites.
+        
+        @param parent reference to the parent item
+        @type QTreeWidgetItem
+        @return list of selected test cases
+        @rtype list of str
+        """
+        selectedTests = []
+        if parent is None:
+            # top level
+            for index in range(self.discoveryList.topLevelItemCount()):
+                itm = self.discoveryList.topLevelItem(index)
+                if itm.checkState(0) == Qt.Checked:
+                    selectedTests.append(
+                        itm.data(0, UnittestDialog.TestCaseNameRole))
+                    # ignore children because they are included implicitly
+                elif itm.childCount():
+                    # recursively check children
+                    selectedTests.extend(self.__selectedTestCases(itm))
+        
+        else:
+            # parent item with children
+            for index in range(parent.childCount()):
+                itm = parent.child(index)
+                if itm.checkState(0) == Qt.Checked:
+                    selectedTests.append(
+                        itm.data(0, UnittestDialog.TestCaseNameRole))
+                    # ignore children because they are included implicitly
+                elif itm.childCount():
+                    # recursively check children
+                    selectedTests.extend(self.__selectedTestCases(itm))
+        
+        return selectedTests
+    
+    def __UTDiscovered(self, testCases, exc_type, exc_value):
+        """
+        Private slot to handle the utDiscovered signal.
+        
+        If the unittest suite was loaded successfully, we ask the
+        client to run the test suite.
+        
+        @param testCases list of detected test cases
+        @type str
+        @param exc_type exception type occured during discovery
+        @type str
+        @param exc_value value of exception occured during discovery
+        @type str
+        """
+        if testCases:
+            self.__populateDiscoveryResults(testCases)
+            self.sbLabel.setText(
+                self.tr("Discovered %n Test(s)", "",
+                        len(testCases)))
+            self.tabWidget.setCurrentIndex(0)
+        else:
+            E5MessageBox.critical(
+                self,
+                self.tr("Unittest"),
+                self.tr("<p>Unable to discover tests.</p>"
+                        "<p>{0}<br/>{1}</p>")
+                .format(exc_type, exc_value.replace("\n", "<br/>"))
+            )
+    
+    @pyqtSlot(QTreeWidgetItem, int)
+    def on_discoveryList_itemDoubleClicked(self, item, column):
+        """
+        Private slot handling the user double clicking an item.
+        
+        @param item reference to the item
+        @type QTreeWidgetItem
+        @param column column of the double click
+        @type int
+        """
+        if item:
+            filename = item.data(0, UnittestDialog.TestCaseFileRole)
+            if filename:
+                if self.__dbs:
+                    # running as part of eric IDE
+                    self.unittestFile.emit(filename, 1, False)
+                else:
+                    self.__openEditor(filename, 1)
+    
+    @pyqtSlot()
+    def startTests(self, failedOnly=False):
+        """
+        Public slot to start the test.
+        
+        @keyparam failedOnly flag indicating to run only failed tests (boolean)
+        """
+        if self.running:
+            return
+        
+        discover = self.discoverCheckBox.isChecked()
+        if discover:
+            discoveryStart = self.discoveryPicker.currentText()
+            testFileName = ""
+            testName = ""
+        else:
+            discoveryStart = ""
+            testFileName = self.testsuitePicker.currentText()
+            testName = self.testComboBox.currentText()
+            if testName:
+                self.insertTestName(testName)
+            if testFileName and not testName:
+                testName = "suite"
+        
+        if not discover and not testFileName and not testName:
+            E5MessageBox.critical(
+                self,
+                self.tr("Unittest"),
+                self.tr("You must select auto-discovery or enter a test suite"
+                        " file or a dotted test name."))
+            return
+        
+        # prepend the selected file to the testsuite combobox
+        self.insertProg(testFileName)
+        self.sbLabel.setText(self.tr("Preparing Testsuite"))
+        QApplication.processEvents()
+        
+        if discover:
+            self.testName = self.tr("Unittest with auto-discovery")
+        else:
+            # build the module name from the filename without extension
+            if testFileName:
+                self.testName = os.path.splitext(
+                    os.path.basename(testFileName))[0]
+            elif testName:
+                self.testName = testName
+            else:
+                self.testName = self.tr("<Unnamed Test>")
+        
+        if failedOnly:
+            testCases = []
+        else:
+            testCases = self.__selectedTestCases()
+        
+            if not testCases and self.discoveryList.topLevelItemCount():
+                ok = E5MessageBox.yesNo(
+                    self,
+                    self.tr("Unittest"),
+                    self.tr("""No test case has been selected. Shall all"""
+                            """ test cases be run?"""))
+                if not ok:
+                    return
+        
+        if self.__dbs:
+            venvName = self.venvComboBox.currentText()
+            
+            # we are cooperating with the eric6 IDE
+            project = e5App().getObject("Project")
+            if self.__forProject:
+                mainScript = os.path.abspath(project.getMainScript(True))
+                clientType = project.getProjectLanguage()
+                if mainScript:
+                    workdir = os.path.dirname(mainScript)
+                else:
+                    workdir = project.getProjectPath()
+                sysPath = [workdir]
+                coverageFile = os.path.splitext(mainScript)[0]
+                if discover and not discoveryStart:
+                    discoveryStart = workdir
+            else:
+                if discover:
+                    if not discoveryStart:
+                        E5MessageBox.critical(
+                            self,
+                            self.tr("Unittest"),
+                            self.tr("You must enter a start directory for"
+                                    " auto-discovery."))
+                        return
+                    
+                    coverageFile = os.path.join(discoveryStart, "unittest")
+                    workdir = ""
+                    clientType = \
+                        self.__venvManager.getVirtualenvVariant(venvName)
+                    if not clientType:
+                        # assume Python 3
+                        clientType = "Python3"
+                elif testFileName:
+                    mainScript = os.path.abspath(testFileName)
+                    flags = Utilities.extractFlagsFromFile(mainScript)
+                    workdir = os.path.dirname(mainScript)
+                    if mainScript.endswith(
+                        tuple(Preferences.getPython("PythonExtensions"))) or \
+                       ("FileType" in flags and
+                            flags["FileType"] in ["Python", "Python2"]):
+                        clientType = "Python2"
+                    else:
+                        # if it is not Python2 it must be Python3!
+                        clientType = "Python3"
+                    coverageFile = os.path.splitext(mainScript)[0]
+                else:
+                    coverageFile = os.path.abspath("unittest")
+                    workdir = ""
+                    clientType = \
+                        self.__venvManager.getVirtualenvVariant(venvName)
+                    if not clientType:
+                        # assume Python 3
+                        clientType = "Python3"
+                sysPath = []
+            if failedOnly and self.__failedTests:
+                failed = self.__failedTests[:]
+                if discover:
+                    workdir = discoveryStart
+                    discover = False
+            else:
+                failed = []
+            self.__failedTests = []
+            self.__dbs.remoteUTPrepare(
+                testFileName, self.testName, testName, failed,
+                self.coverageCheckBox.isChecked(), coverageFile,
+                self.coverageEraseCheckBox.isChecked(), clientType=clientType,
+                forProject=self.__forProject, workdir=workdir,
+                venvName=venvName, syspath=sysPath,
+                discover=discover, discoveryStart=discoveryStart,
+                testCases=testCases, debug=self.debuggerCheckBox.isChecked())
+        else:
+            # we are running as an application
+            if discover and not discoveryStart:
+                E5MessageBox.critical(
+                    self,
+                    self.tr("Unittest"),
+                    self.tr("You must enter a start directory for"
+                            " auto-discovery."))
+                return
+            
+            if testFileName:
+                sys.path = [os.path.dirname(os.path.abspath(testFileName))] + \
+                    self.savedSysPath
+            elif discoveryStart:
+                sys.path = [os.path.abspath(discoveryStart)] + \
+                    self.savedSysPath
+            
+            # clean up list of imported modules to force a reimport upon
+            # running the test
+            if self.savedModulelist:
+                for modname in list(sys.modules.keys()):
+                    if modname not in self.savedModulelist:
+                        # delete it
+                        del(sys.modules[modname])
+            self.savedModulelist = sys.modules.copy()
+            
+            os.chdir(self.savedCwd)
+            
+            # now try to generate the testsuite
+            try:
+                testLoader = unittest.TestLoader()
+                if failedOnly and self.__failedTests:
+                    failed = self.__failedTests[:]
+                    if discover:
+                        os.chdir(discoveryStart)
+                        discover = False
+                else:
+                    failed = []
+                if discover:
+                    if testCases:
+                        test = testLoader.loadTestsFromNames(testCases)
+                    else:
+                        test = testLoader.discover(discoveryStart)
+                else:
+                    if testFileName:
+                        module = __import__(self.testName)
+                    else:
+                        module = None
+                    if failedOnly and self.__failedTests:
+                        if module:
+                            failed = [t.split(".", 1)[1]
+                                      for t in self.__failedTests]
+                        else:
+                            failed = self.__failedTests[:]
+                        test = testLoader.loadTestsFromNames(
+                            failed, module)
+                    else:
+                        test = testLoader.loadTestsFromName(
+                            testName, module)
+            except Exception:
+                exc_type, exc_value, exc_tb = sys.exc_info()
+                E5MessageBox.critical(
+                    self,
+                    self.tr("Unittest"),
+                    self.tr(
+                        "<p>Unable to run test <b>{0}</b>.</p>"
+                        "<p>{1}<br/>{2}</p>")
+                    .format(self.testName, str(exc_type),
+                            str(exc_value).replace("\n", "<br/>"))
+                )
+                return
+                
+            # now set up the coverage stuff
+            if self.coverageCheckBox.isChecked():
+                if discover:
+                    covname = os.path.join(discoveryStart, "unittest")
+                elif testFileName:
+                    covname = \
+                        os.path.splitext(os.path.abspath(testFileName))[0]
+                else:
+                    covname = "unittest"
+                
+                from DebugClients.Python.coverage import coverage
+                cover = coverage(data_file="{0}.coverage".format(covname))
+                if self.coverageEraseCheckBox.isChecked():
+                    cover.erase()
+            else:
+                cover = None
+            
+            self.testResult = QtTestResult(
+                self, self.failfastCheckBox.isChecked())
+            self.totalTests = test.countTestCases()
+            self.__failedTests = []
+            self.__setRunningMode()
+            if cover:
+                cover.start()
+            test.run(self.testResult)
+            if cover:
+                cover.stop()
+                cover.save()
+            self.__setStoppedMode()
+            sys.path = self.savedSysPath
+    
+    def __UTPrepared(self, nrTests, exc_type, exc_value):
+        """
+        Private slot to handle the utPrepared signal.
+        
+        If the unittest suite was loaded successfully, we ask the
+        client to run the test suite.
+        
+        @param nrTests number of tests contained in the test suite (integer)
+        @param exc_type type of exception occured during preparation (string)
+        @param exc_value value of exception occured during preparation (string)
+        """
+        if nrTests == 0:
+            E5MessageBox.critical(
+                self,
+                self.tr("Unittest"),
+                self.tr(
+                    "<p>Unable to run test <b>{0}</b>.</p>"
+                    "<p>{1}<br/>{2}</p>")
+                .format(self.testName, exc_type,
+                        exc_value.replace("\n", "<br/>"))
+            )
+            return
+        
+        self.totalTests = nrTests
+        self.__setRunningMode()
+        self.__dbs.remoteUTRun(debug=self.debuggerCheckBox.isChecked(),
+                               failfast=self.failfastCheckBox.isChecked())
+    
+    @pyqtSlot()
+    def __stopTests(self):
+        """
+        Private slot to stop the test.
+        """
+        if self.__dbs:
+            self.__dbs.remoteUTStop()
+        elif self.testResult:
+            self.testResult.stop()
+    
+    def on_errorsListWidget_currentTextChanged(self, text):
+        """
+        Private slot to handle the highlighted signal.
+        
+        @param text current text (string)
+        """
+        if text:
+            for pattern in self.rxPatterns:
+                text = re.sub(pattern, "", text)
+            
+            foundItems = self.testsListWidget.findItems(
+                text, Qt.MatchFlags(Qt.MatchExactly))
+            if len(foundItems) > 0:
+                itm = foundItems[0]
+                self.testsListWidget.setCurrentItem(itm)
+                self.testsListWidget.scrollToItem(itm)
+    
+    def __setRunningMode(self):
+        """
+        Private method to set the GUI in running mode.
+        """
+        self.running = True
+        self.tabWidget.setCurrentIndex(1)
+        
+        # reset counters and error infos
+        self.runCount = 0
+        self.failCount = 0
+        self.errorCount = 0
+        self.skippedCount = 0
+        self.expectedFailureCount = 0
+        self.unexpectedSuccessCount = 0
+        self.remainingCount = self.totalTests
+        
+        # reset the GUI
+        self.progressCounterRunCount.setText(str(self.runCount))
+        self.progressCounterRemCount.setText(str(self.remainingCount))
+        self.progressCounterFailureCount.setText(str(self.failCount))
+        self.progressCounterErrorCount.setText(str(self.errorCount))
+        self.progressCounterSkippedCount.setText(str(self.skippedCount))
+        self.progressCounterExpectedFailureCount.setText(
+            str(self.expectedFailureCount))
+        self.progressCounterUnexpectedSuccessCount.setText(
+            str(self.unexpectedSuccessCount))
+        
+        self.errorsListWidget.clear()
+        self.testsListWidget.clear()
+        
+        self.progressProgressBar.setRange(0, self.totalTests)
+        self.__setProgressColor("green")
+        self.progressProgressBar.reset()
+        
+        self.stopButton.setEnabled(True)
+        self.startButton.setEnabled(False)
+        self.startFailedButton.setEnabled(False)
+        self.stopButton.setDefault(True)
+        
+        self.sbLabel.setText(self.tr("Running"))
+        self.progressLed.on()
+        QApplication.processEvents()
+        
+        self.startTime = time.time()
+    
+    def __setStoppedMode(self):
+        """
+        Private method to set the GUI in stopped mode.
+        """
+        self.stopTime = time.time()
+        self.timeTaken = float(self.stopTime - self.startTime)
+        self.running = False
+        
+        failedAvailable = bool(self.__failedTests)
+        self.startButton.setEnabled(True)
+        self.startFailedButton.setEnabled(failedAvailable)
+        self.stopButton.setEnabled(False)
+        if failedAvailable:
+            self.startFailedButton.setDefault(True)
+            self.startButton.setDefault(False)
+        else:
+            self.startFailedButton.setDefault(False)
+            self.startButton.setDefault(True)
+        self.sbLabel.setText(
+            self.tr("Ran %n test(s) in {0:.3f}s", "", self.runCount)
+            .format(self.timeTaken))
+        self.progressLed.off()
+        
+        self.unittestStopped.emit()
+        
+        self.raise_()
+        self.activateWindow()
+    
+    def testFailed(self, test, exc, testId):
+        """
+        Public method called if a test fails.
+        
+        @param test name of the test (string)
+        @param exc string representation of the exception (string)
+        @param testId id of the test (string)
+        """
+        self.failCount += 1
+        self.progressCounterFailureCount.setText(str(self.failCount))
+        itm = QListWidgetItem(self.tr("Failure: {0}").format(test))
+        itm.setData(UnittestDialog.ErrorsInfoRole, (test, exc))
+        self.errorsListWidget.insertItem(0, itm)
+        self.__failedTests.append(testId)
+    
+    def testErrored(self, test, exc, testId):
+        """
+        Public method called if a test errors.
+        
+        @param test name of the test (string)
+        @param exc string representation of the exception (string)
+        @param testId id of the test (string)
+        """
+        self.errorCount += 1
+        self.progressCounterErrorCount.setText(str(self.errorCount))
+        itm = QListWidgetItem(self.tr("Error: {0}").format(test))
+        itm.setData(UnittestDialog.ErrorsInfoRole, (test, exc))
+        self.errorsListWidget.insertItem(0, itm)
+        self.__failedTests.append(testId)
+    
+    def testSkipped(self, test, reason, testId):
+        """
+        Public method called if a test was skipped.
+        
+        @param test name of the test (string)
+        @param reason reason for skipping the test (string)
+        @param testId id of the test (string)
+        """
+        self.skippedCount += 1
+        self.progressCounterSkippedCount.setText(str(self.skippedCount))
+        itm = QListWidgetItem(self.tr("    Skipped: {0}").format(reason))
+        itm.setForeground(Qt.blue)
+        self.testsListWidget.insertItem(1, itm)
+    
+    def testFailedExpected(self, test, exc, testId):
+        """
+        Public method called if a test fails expectedly.
+        
+        @param test name of the test (string)
+        @param exc string representation of the exception (string)
+        @param testId id of the test (string)
+        """
+        self.expectedFailureCount += 1
+        self.progressCounterExpectedFailureCount.setText(
+            str(self.expectedFailureCount))
+        itm = QListWidgetItem(self.tr("    Expected Failure"))
+        itm.setForeground(Qt.blue)
+        self.testsListWidget.insertItem(1, itm)
+    
+    def testSucceededUnexpected(self, test, testId):
+        """
+        Public method called if a test succeeds unexpectedly.
+        
+        @param test name of the test (string)
+        @param testId id of the test (string)
+        """
+        self.unexpectedSuccessCount += 1
+        self.progressCounterUnexpectedSuccessCount.setText(
+            str(self.unexpectedSuccessCount))
+        itm = QListWidgetItem(self.tr("    Unexpected Success"))
+        itm.setForeground(Qt.red)
+        self.testsListWidget.insertItem(1, itm)
+    
+    def testStarted(self, test, doc):
+        """
+        Public method called if a test is about to be run.
+        
+        @param test name of the started test (string)
+        @param doc documentation of the started test (string)
+        """
+        if doc:
+            self.testsListWidget.insertItem(0, "    {0}".format(doc))
+        self.testsListWidget.insertItem(0, test)
+        if self.__dbs is None:
+            QApplication.processEvents()
+    
+    def testFinished(self):
+        """
+        Public method called if a test has finished.
+        
+        <b>Note</b>: It is also called if it has already failed or errored.
+        """
+        # update the counters
+        self.remainingCount -= 1
+        self.runCount += 1
+        self.progressCounterRunCount.setText(str(self.runCount))
+        self.progressCounterRemCount.setText(str(self.remainingCount))
+        
+        # update the progressbar
+        if self.errorCount:
+            self.__setProgressColor("red")
+        elif self.failCount:
+            self.__setProgressColor("orange")
+        self.progressProgressBar.setValue(self.runCount)
+    
+    def on_errorsListWidget_itemDoubleClicked(self, lbitem):
+        """
+        Private slot called by doubleclicking an errorlist entry.
+        
+        It will popup a dialog showing the stacktrace.
+        If called from eric, an additional button is displayed
+        to show the python source in an eric source viewer (in
+        erics main window.
+        
+        @param lbitem the listbox item that was double clicked
+        """
+        self.errListIndex = self.errorsListWidget.row(lbitem)
+        text = lbitem.text()
+        self.on_errorsListWidget_currentTextChanged(text)
+        
+        # get the error info
+        test, tracebackText = lbitem.data(UnittestDialog.ErrorsInfoRole)
+        
+        # now build the dialog
+        from .Ui_UnittestStacktraceDialog import Ui_UnittestStacktraceDialog
+        self.dlg = QDialog(self)
+        ui = Ui_UnittestStacktraceDialog()
+        ui.setupUi(self.dlg)
+        self.dlg.traceback = ui.traceback
+        
+        ui.showButton = ui.buttonBox.addButton(
+            self.tr("Show Source"), QDialogButtonBox.ActionRole)
+        ui.showButton.clicked.connect(self.__showSource)
+        
+        ui.buttonBox.button(QDialogButtonBox.Close).setDefault(True)
+        
+        self.dlg.setWindowTitle(text)
+        ui.testLabel.setText(test)
+        ui.traceback.setPlainText(tracebackText)
+        
+        # and now fire it up
+        self.dlg.show()
+        self.dlg.exec_()
+    
+    def __showSource(self):
+        """
+        Private slot to show the source of a traceback in an eric6 editor.
+        """
+        # get the error info
+        tracebackLines = self.dlg.traceback.toPlainText().splitlines()
+        # find the last entry matching the pattern
+        for index in range(len(tracebackLines) - 1, -1, -1):
+            fmatch = re.search(r'File "(.*?)", line (\d*?),.*',
+                               tracebackLines[index])
+            if fmatch:
+                break
+        if fmatch:
+            fn, ln = fmatch.group(1, 2)
+            if self.__dbs:
+                # running as part of eric IDE
+                self.unittestFile.emit(fn, int(ln), True)
+            else:
+                self.__openEditor(fn, int(ln))
+    
+    def hasFailedTests(self):
+        """
+        Public method to check, if there are failed tests from the last run.
+        
+        @return flag indicating the presence of failed tests (boolean)
+        """
+        return bool(self.__failedTests)
+    
+    def __openEditor(self, filename, linenumber):
+        """
+        Private method to open an editor window for the given file.
+        
+        Note: This method opens an editor window when the unittest dialog
+        is called as a standalone application.
+        
+        @param filename path of the file to be opened
+        @type str
+        @param linenumber line number to place the cursor at
+        @type int
+        """
+        from QScintilla.MiniEditor import MiniEditor
+        editor = MiniEditor(filename, "Python3", self)
+        editor.gotoLine(linenumber)
+        editor.show()
+        
+        self.__editors.append(editor)
+    
+    def closeEvent(self, event):
+        """
+        Protected method to handle the close event.
+        
+        @param event close event
+        @type QCloseEvent
+        """
+        event.accept()
+        
+        for editor in self.__editors:
+            try:
+                editor.close()
+            except Exception:
+                # ignore all exceptions
+                pass
+
+
+class QtTestResult(unittest.TestResult):
+    """
+    A TestResult derivative to work with a graphical GUI.
+    
+    For more details see pyunit.py of the standard Python distribution.
+    """
+    def __init__(self, parent, failfast):
+        """
+        Constructor
+        
+        @param parent reference to the parent widget
+        @type UnittestDialog
+        @param failfast flag indicating to stop at the first error
+        @type bool
+        """
+        super(QtTestResult, self).__init__()
+        self.parent = parent
+        self.failfast = failfast
+    
+    def addFailure(self, test, err):
+        """
+        Public method called if a test failed.
+        
+        @param test reference to the test object
+        @param err error traceback
+        """
+        super(QtTestResult, self).addFailure(test, err)
+        tracebackLines = self._exc_info_to_string(err, test)
+        self.parent.testFailed(str(test), tracebackLines, test.id())
+    
+    def addError(self, test, err):
+        """
+        Public method called if a test errored.
+        
+        @param test reference to the test object
+        @param err error traceback
+        """
+        super(QtTestResult, self).addError(test, err)
+        tracebackLines = self._exc_info_to_string(err, test)
+        self.parent.testErrored(str(test), tracebackLines, test.id())
+    
+    def addSkip(self, test, reason):
+        """
+        Public method called if a test was skipped.
+        
+        @param test reference to the test object
+        @param reason reason for skipping the test (string)
+        """
+        super(QtTestResult, self).addSkip(test, reason)
+        self.parent.testSkipped(str(test), reason, test.id())
+    
+    def addExpectedFailure(self, test, err):
+        """
+        Public method called if a test failed expected.
+        
+        @param test reference to the test object
+        @param err error traceback
+        """
+        super(QtTestResult, self).addExpectedFailure(test, err)
+        tracebackLines = self._exc_info_to_string(err, test)
+        self.parent.testFailedExpected(str(test), tracebackLines, test.id())
+    
+    def addUnexpectedSuccess(self, test):
+        """
+        Public method called if a test succeeded expectedly.
+        
+        @param test reference to the test object
+        """
+        super(QtTestResult, self).addUnexpectedSuccess(test)
+        self.parent.testSucceededUnexpected(str(test), test.id())
+    
+    def startTest(self, test):
+        """
+        Public method called at the start of a test.
+        
+        @param test Reference to the test object
+        """
+        super(QtTestResult, self).startTest(test)
+        self.parent.testStarted(str(test), test.shortDescription())
+
+    def stopTest(self, test):
+        """
+        Public method called at the end of a test.
+        
+        @param test Reference to the test object
+        """
+        super(QtTestResult, self).stopTest(test)
+        self.parent.testFinished()
+
+
+class UnittestWindow(E5MainWindow):
+    """
+    Main window class for the standalone dialog.
+    """
+    def __init__(self, prog=None, parent=None):
+        """
+        Constructor
+        
+        @param prog filename of the program to open
+        @param parent reference to the parent widget (QWidget)
+        """
+        super(UnittestWindow, self).__init__(parent)
+        self.cw = UnittestDialog(prog, parent=self)
+        self.cw.installEventFilter(self)
+        size = self.cw.size()
+        self.setCentralWidget(self.cw)
+        self.resize(size)
+        
+        self.setStyle(Preferences.getUI("Style"),
+                      Preferences.getUI("StyleSheet"))
+        
+        self.cw.buttonBox.accepted.connect(self.close)
+        self.cw.buttonBox.rejected.connect(self.close)
+    
+    def eventFilter(self, obj, event):
+        """
+        Public method to filter events.
+        
+        @param obj reference to the object the event is meant for (QObject)
+        @param event reference to the event object (QEvent)
+        @return flag indicating, whether the event was handled (boolean)
+        """
+        if event.type() == QEvent.Close:
+            QApplication.exit()
+            return True
+        
+        return False

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mercurial