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"""Tests for XML reports from coverage.py."""
import os
import re
import coverage
from tests.coveragetest import CoverageTest
class XmlTestHelpers(CoverageTest):
"""Methods to use from XML tests."""
def run_mycode(self):
"""Run mycode.py, so we can report on it."""
self.make_file("mycode.py", "print('hello')\n")
self.run_command("coverage run mycode.py")
def run_doit(self):
"""Construct a simple sub-package."""
self.make_file("sub/__init__.py")
self.make_file("sub/doit.py", "print('doit!')")
self.make_file("main.py", "import sub.doit")
cov = coverage.coverage()
self.start_import_stop(cov, "main")
return cov
class XmlReportTest(XmlTestHelpers, CoverageTest):
"""Tests of the XML reports from coverage.py."""
def test_default_file_placement(self):
self.run_mycode()
self.run_command("coverage xml")
self.assert_exists("coverage.xml")
def test_argument_affects_xml_placement(self):
self.run_mycode()
self.run_command("coverage xml -o put_it_there.xml")
self.assert_doesnt_exist("coverage.xml")
self.assert_exists("put_it_there.xml")
def test_config_file_directory_does_not_exist(self):
self.run_mycode()
self.run_command("coverage xml -o nonexistent/put_it_there.xml")
self.assert_doesnt_exist("coverage.xml")
self.assert_doesnt_exist("put_it_there.xml")
self.assert_exists("nonexistent/put_it_there.xml")
def test_config_affects_xml_placement(self):
self.run_mycode()
self.make_file(".coveragerc", "[xml]\noutput = xml.out\n")
self.run_command("coverage xml")
self.assert_doesnt_exist("coverage.xml")
self.assert_exists("xml.out")
def test_no_data(self):
# https://bitbucket.org/ned/coveragepy/issue/210
self.run_command("coverage xml")
self.assert_doesnt_exist("coverage.xml")
def test_no_source(self):
# Written while investigating a bug, might as well keep it.
# https://bitbucket.org/ned/coveragepy/issue/208
self.make_file("innocuous.py", "a = 4")
cov = coverage.coverage()
self.start_import_stop(cov, "innocuous")
os.remove("innocuous.py")
cov.xml_report(ignore_errors=True)
self.assert_exists("coverage.xml")
def test_filename_format_showing_everything(self):
cov = self.run_doit()
cov.xml_report(outfile="-")
xml = self.stdout()
doit_line = re_line(xml, "class.*doit")
self.assertIn('filename="sub/doit.py"', doit_line)
def test_filename_format_including_filename(self):
cov = self.run_doit()
cov.xml_report(["sub/doit.py"], outfile="-")
xml = self.stdout()
doit_line = re_line(xml, "class.*doit")
self.assertIn('filename="sub/doit.py"', doit_line)
def test_filename_format_including_module(self):
cov = self.run_doit()
import sub.doit # pylint: disable=import-error
cov.xml_report([sub.doit], outfile="-")
xml = self.stdout()
doit_line = re_line(xml, "class.*doit")
self.assertIn('filename="sub/doit.py"', doit_line)
def test_reporting_on_nothing(self):
# Used to raise a zero division error:
# https://bitbucket.org/ned/coveragepy/issue/250
self.make_file("empty.py", "")
cov = coverage.coverage()
empty = self.start_import_stop(cov, "empty")
cov.xml_report([empty], outfile="-")
xml = self.stdout()
empty_line = re_line(xml, "class.*empty")
self.assertIn('filename="empty.py"', empty_line)
self.assertIn('line-rate="1"', empty_line)
def test_empty_file_is_100_not_0(self):
# https://bitbucket.org/ned/coveragepy/issue/345
cov = self.run_doit()
cov.xml_report(outfile="-")
xml = self.stdout()
init_line = re_line(xml, 'filename="sub/__init__.py"')
self.assertIn('line-rate="1"', init_line)
def re_line(text, pat):
"""Return the one line in `text` that matches regex `pat`."""
lines = [l for l in text.splitlines() if re.search(pat, l)]
assert len(lines) == 1
return lines[0]
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