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1 # coding: utf-8 |
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2 # Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 |
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3 # For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt |
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4 |
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5 """Json reporting for coverage.py""" |
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6 import datetime |
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7 import json |
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8 import sys |
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9 |
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10 from coverage import __version__ |
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11 from coverage.report import get_analysis_to_report |
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12 from coverage.results import Numbers |
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13 |
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14 |
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15 class JsonReporter(object): |
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16 """A reporter for writing JSON coverage results.""" |
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17 |
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18 def __init__(self, coverage): |
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19 self.coverage = coverage |
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20 self.config = self.coverage.config |
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21 self.total = Numbers() |
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22 self.report_data = {} |
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23 |
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24 def report(self, morfs, outfile=None): |
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25 """Generate a json report for `morfs`. |
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26 |
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27 `morfs` is a list of modules or file names. |
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28 |
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29 `outfile` is a file object to write the json to |
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30 |
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31 """ |
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32 outfile = outfile or sys.stdout |
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33 coverage_data = self.coverage.get_data() |
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34 coverage_data.set_query_contexts(self.config.report_contexts) |
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35 self.report_data["meta"] = { |
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36 "version": __version__, |
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37 "timestamp": datetime.datetime.now().isoformat(), |
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38 "branch_coverage": coverage_data.has_arcs(), |
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39 "show_contexts": self.config.json_show_contexts, |
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40 } |
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41 |
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42 measured_files = {} |
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43 for file_reporter, analysis in get_analysis_to_report(self.coverage, morfs): |
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44 measured_files[file_reporter.relative_filename()] = self.report_one_file( |
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45 coverage_data, |
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46 analysis |
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47 ) |
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48 |
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49 self.report_data["files"] = measured_files |
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50 |
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51 self.report_data["totals"] = { |
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52 'covered_lines': self.total.n_executed, |
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53 'num_statements': self.total.n_statements, |
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54 'percent_covered': self.total.pc_covered, |
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55 'missing_lines': self.total.n_missing, |
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56 'excluded_lines': self.total.n_excluded, |
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57 } |
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58 |
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59 if coverage_data.has_arcs(): |
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60 self.report_data["totals"].update({ |
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61 'num_branches': self.total.n_branches, |
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62 'num_partial_branches': self.total.n_partial_branches, |
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63 'covered_branches': self.total.n_executed_branches, |
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64 'missing_branches': self.total.n_missing_branches, |
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65 }) |
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66 |
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67 json.dump( |
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68 self.report_data, |
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69 outfile, |
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70 indent=4 if self.config.json_pretty_print else None |
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71 ) |
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72 |
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73 return self.total.n_statements and self.total.pc_covered |
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74 |
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75 def report_one_file(self, coverage_data, analysis): |
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76 """Extract the relevant report data for a single file""" |
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77 nums = analysis.numbers |
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78 self.total += nums |
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79 summary = { |
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80 'covered_lines': nums.n_executed, |
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81 'num_statements': nums.n_statements, |
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82 'percent_covered': nums.pc_covered, |
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83 'missing_lines': nums.n_missing, |
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84 'excluded_lines': nums.n_excluded, |
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85 } |
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86 reported_file = { |
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87 'executed_lines': sorted(analysis.executed), |
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88 'summary': summary, |
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89 'missing_lines': sorted(analysis.missing), |
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90 'excluded_lines': sorted(analysis.excluded) |
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91 } |
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92 if self.config.json_show_contexts: |
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93 reported_file['contexts'] = analysis.data.contexts_by_lineno( |
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94 analysis.filename, |
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95 ) |
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96 if coverage_data.has_arcs(): |
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97 reported_file['summary'].update({ |
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98 'num_branches': nums.n_branches, |
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99 'num_partial_branches': nums.n_partial_branches, |
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100 'covered_branches': nums.n_executed_branches, |
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101 'missing_branches': nums.n_missing_branches, |
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102 }) |
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103 return reported_file |