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report.py
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# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 # For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt """Summary reporting""" from __future__ import annotations import sys from typing import Any, IO, Iterable, List, Optional, Tuple, TYPE_CHECKING from coverage.exceptions import ConfigError, NoDataError from coverage.misc import human_sorted_items from coverage.plugin import FileReporter from coverage.report_core import get_analysis_to_report from coverage.results import Analysis, Numbers from coverage.types import TMorf if TYPE_CHECKING: from coverage import Coverage class SummaryReporter: """A reporter for writing the summary report.""" def __init__(self, coverage: Coverage) -> None: self.coverage = coverage self.config = self.coverage.config self.branches = coverage.get_data().has_arcs() self.outfile: Optional[IO[str]] = None self.output_format = self.config.format or "text" if self.output_format not in {"text", "markdown", "total"}: raise ConfigError(f"Unknown report format choice: {self.output_format!r}") self.fr_analysis: List[Tuple[FileReporter, Analysis]] = [] self.skipped_count = 0 self.empty_count = 0 self.total = Numbers(precision=self.config.precision) def write(self, line: str) -> None: """Write a line to the output, adding a newline.""" assert self.outfile is not None self.outfile.write(line.rstrip()) self.outfile.write("\n") def write_items(self, items: Iterable[str]) -> None: """Write a list of strings, joined together.""" self.write("".join(items)) def _report_text( self, header: List[str], lines_values: List[List[Any]], total_line: List[Any], end_lines: List[str], ) -> None: """Internal method that prints report data in text format. `header` is a list with captions. `lines_values` is list of lists of sortable values. `total_line` is a list with values of the total line. `end_lines` is a list of ending lines with information about skipped files. """ # Prepare the formatting strings, header, and column sorting. max_name = max([len(line[0]) for line in lines_values] + [5]) + 1 max_n = max(len(total_line[header.index("Cover")]) + 2, len(" Cover")) + 1 max_n = max([max_n] + [len(line[header.index("Cover")]) + 2 for line in lines_values]) formats = dict( Name="{:{name_len}}", Stmts="{:>7}", Miss="{:>7}", Branch="{:>7}", BrPart="{:>7}", Cover="{:>{n}}", Missing="{:>10}", ) header_items = [ formats[item].format(item, name_len=max_name, n=max_n) for item in header ] header_str = "".join(header_items) rule = "-" * len(header_str) # Write the header self.write(header_str) self.write(rule) formats.update(dict(Cover="{:>{n}}%"), Missing=" {:9}") for values in lines_values: # build string with line values line_items = [ formats[item].format(str(value), name_len=max_name, n=max_n-1) for item, value in zip(header, values) ] self.write_items(line_items) # Write a TOTAL line if lines_values: self.write(rule) line_items = [ formats[item].format(str(value), name_len=max_name, n=max_n-1) for item, value in zip(header, total_line) ] self.write_items(line_items) for end_line in end_lines: self.write(end_line) def _report_markdown( self, header: List[str], lines_values: List[List[Any]], total_line: List[Any], end_lines: List[str], ) -> None: """Internal method that prints report data in markdown format. `header` is a list with captions. `lines_values` is a sorted list of lists containing coverage information. `total_line` is a list with values of the total line. `end_lines` is a list of ending lines with information about skipped files. """ # Prepare the formatting strings, header, and column sorting. max_name = max((len(line[0].replace("_", "\\_")) for line in lines_values), default=0) max_name = max(max_name, len("**TOTAL**")) + 1 formats = dict( Name="| {:{name_len}}|", Stmts="{:>9} |", Miss="{:>9} |", Branch="{:>9} |", BrPart="{:>9} |", Cover="{:>{n}} |", Missing="{:>10} |", ) max_n = max(len(total_line[header.index("Cover")]) + 6, len(" Cover ")) header_items = [formats[item].format(item, name_len=max_name, n=max_n) for item in header] header_str = "".join(header_items) rule_str = "|" + " ".join(["- |".rjust(len(header_items[0])-1, "-")] + ["-: |".rjust(len(item)-1, "-") for item in header_items[1:]] ) # Write the header self.write(header_str) self.write(rule_str) for values in lines_values: # build string with line values formats.update(dict(Cover="{:>{n}}% |")) line_items = [ formats[item].format(str(value).replace("_", "\\_"), name_len=max_name, n=max_n-1) for item, value in zip(header, values) ] self.write_items(line_items) # Write the TOTAL line formats.update(dict(Name="|{:>{name_len}} |", Cover="{:>{n}} |")) total_line_items: List[str] = [] for item, value in zip(header, total_line): if value == "": insert = value elif item == "Cover": insert = f" **{value}%**" else: insert = f" **{value}**" total_line_items += formats[item].format(insert, name_len=max_name, n=max_n) self.write_items(total_line_items) for end_line in end_lines: self.write(end_line) def report(self, morfs: Optional[Iterable[TMorf]], outfile: Optional[IO[str]] = None) -> float: """Writes a report summarizing coverage statistics per module. `outfile` is a text-mode file object to write the summary to. """ self.outfile = outfile or sys.stdout self.coverage.get_data().set_query_contexts(self.config.report_contexts) for fr, analysis in get_analysis_to_report(self.coverage, morfs): self.report_one_file(fr, analysis) if not self.total.n_files and not self.skipped_count: raise NoDataError("No data to report.") if self.output_format == "total": self.write(self.total.pc_covered_str) else: self.tabular_report() return self.total.pc_covered def tabular_report(self) -> None: """Writes tabular report formats.""" # Prepare the header line and column sorting. header = ["Name", "Stmts", "Miss"] if self.branches: header += ["Branch", "BrPart"] header += ["Cover"] if self.config.show_missing: header += ["Missing"] column_order = dict(name=0, stmts=1, miss=2, cover=-1) if self.branches: column_order.update(dict(branch=3, brpart=4)) # `lines_values` is list of lists of sortable values. lines_values = [] for (fr, analysis) in self.fr_analysis: nums = analysis.numbers args = [fr.relative_filename(), nums.n_statements, nums.n_missing] if self.branches: args += [nums.n_branches, nums.n_partial_branches] args += [nums.pc_covered_str] if self.config.show_missing: args += [analysis.missing_formatted(branches=True)] args += [nums.pc_covered] lines_values.append(args) # Line sorting. sort_option = (self.config.sort or "name").lower() reverse = False if sort_option[0] == "-": reverse = True sort_option = sort_option[1:] elif sort_option[0] == "+": sort_option = sort_option[1:] sort_idx = column_order.get(sort_option) if sort_idx is None: raise ConfigError(f"Invalid sorting option: {self.config.sort!r}") if sort_option == "name": lines_values = human_sorted_items(lines_values, reverse=reverse) else: lines_values.sort( key=lambda line: (line[sort_idx], line[0]), # type: ignore[index] reverse=reverse, ) # Calculate total if we had at least one file. total_line = ["TOTAL", self.total.n_statements, self.total.n_missing] if self.branches: total_line += [self.total.n_branches, self.total.n_partial_branches] total_line += [self.total.pc_covered_str] if self.config.show_missing: total_line += [""] # Create other final lines. end_lines = [] if self.config.skip_covered and self.skipped_count: file_suffix = "s" if self.skipped_count>1 else "" end_lines.append( f"\n{self.skipped_count} file{file_suffix} skipped due to complete coverage." ) if self.config.skip_empty and self.empty_count: file_suffix = "s" if self.empty_count > 1 else "" end_lines.append(f"\n{self.empty_count} empty file{file_suffix} skipped.") if self.output_format == "markdown": formatter = self._report_markdown else: formatter = self._report_text formatter(header, lines_values, total_line, end_lines) def report_one_file(self, fr: FileReporter, analysis: Analysis) -> None: """Report on just one file, the callback from report().""" nums = analysis.numbers self.total += nums no_missing_lines = (nums.n_missing == 0) no_missing_branches = (nums.n_partial_branches == 0) if self.config.skip_covered and no_missing_lines and no_missing_branches: # Don't report on 100% files. self.skipped_count += 1 elif self.config.skip_empty and nums.n_statements == 0: # Don't report on empty files. self.empty_count += 1 else: self.fr_analysis.append((fr, analysis))