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"""Test text-based summary reporting for coverage.py"""
import os, re, sys
import coverage
from coverage.backward import StringIO
sys.path.insert(0, os.path.split(__file__)[0]) # Force relative import for Py3k
from coveragetest import CoverageTest
class SummaryTest(CoverageTest):
"""Tests of the text summary reporting for coverage.py."""
def setUp(self):
super(SummaryTest, self).setUp()
self.make_file("mycode.py", """\
import covmod1
import covmodzip1
a = 1
print ('done')
""")
# Parent class saves and restores sys.path, we can just modify it.
sys.path.append(self.nice_file(os.path.dirname(__file__), 'modules'))
def report_from_command(self, cmd):
"""Return the report from the `cmd`, with some convenience added."""
report = self.run_command(cmd).replace('\\', '/')
self.assertFalse("error" in report.lower())
return report
def line_count(self, report):
"""How many lines are in `report`?"""
self.assertEqual(report.split('\n')[-1], "")
return len(report.split('\n')) - 1
def last_line_squeezed(self, report):
"""Return the last line of `report` with the spaces squeezed down."""
last_line = report.split('\n')[-2]
return re.sub(r"\s+", " ", last_line)
def test_report(self):
out = self.run_command("coverage -x mycode.py")
self.assertEqual(out, 'done\n')
report = self.report_from_command("coverage -r")
# Name Stmts Miss Cover
# ---------------------------------------------------------------------
# c:/ned/coverage/trunk/test/modules/covmod1 2 0 100%
# c:/ned/coverage/trunk/test/zipmods.zip/covmodzip1 2 0 100%
# mycode 4 0 100%
# ---------------------------------------------------------------------
# TOTAL 8 0 100%
self.assertFalse("/coverage/__init__/" in report)
self.assertTrue("/test/modules/covmod1 " in report)
self.assertTrue("/test/zipmods.zip/covmodzip1 " in report)
self.assertTrue("mycode " in report)
self.assertEqual(self.last_line_squeezed(report), "TOTAL 8 0 100%")
def test_report_just_one(self):
# Try reporting just one module
self.run_command("coverage -x mycode.py")
report = self.report_from_command("coverage -r mycode.py")
# Name Stmts Miss Cover
# ----------------------------
# mycode 4 0 100%
self.assertEqual(self.line_count(report), 3)
self.assertFalse("/coverage/" in report)
self.assertFalse("/test/modules/covmod1 " in report)
self.assertFalse("/test/zipmods.zip/covmodzip1 " in report)
self.assertTrue("mycode " in report)
self.assertEqual(self.last_line_squeezed(report), "mycode 4 0 100%")
def test_report_omitting(self):
# Try reporting while omitting some modules
prefix = os.path.split(__file__)[0]
self.run_command("coverage -x mycode.py")
report = self.report_from_command("coverage -r -o '%s/*'" % prefix)
# Name Stmts Miss Cover
# ----------------------------
# mycode 4 0 100%
self.assertEqual(self.line_count(report), 3)
self.assertFalse("/coverage/" in report)
self.assertFalse("/test/modules/covmod1 " in report)
self.assertFalse("/test/zipmods.zip/covmodzip1 " in report)
self.assertTrue("mycode " in report)
self.assertEqual(self.last_line_squeezed(report), "mycode 4 0 100%")
def test_report_including(self):
# Try reporting while including some modules
self.run_command("coverage run mycode.py")
report = self.report_from_command("coverage report --include=mycode*")
# Name Stmts Miss Cover
# ----------------------------
# mycode 4 0 100%
self.assertEqual(self.line_count(report), 3)
self.assertFalse("/coverage/" in report)
self.assertFalse("/test/modules/covmod1 " in report)
self.assertFalse("/test/zipmods.zip/covmodzip1 " in report)
self.assertTrue("mycode " in report)
self.assertEqual(self.last_line_squeezed(report), "mycode 4 0 100%")
def test_report_branches(self):
self.make_file("mybranch.py", """\
def branch(x):
if x:
print("x")
return x
branch(1)
""")
out = self.run_command("coverage run --branch mybranch.py")
self.assertEqual(out, 'x\n')
report = self.report_from_command("coverage report")
# Name Stmts Miss Branch BrPart Cover
# --------------------------------------------
# mybranch 5 0 2 1 85%
self.assertEqual(self.line_count(report), 3)
self.assertTrue("mybranch " in report)
self.assertEqual(self.last_line_squeezed(report),
"mybranch 5 0 2 1 86%")
def test_dotpy_not_python(self):
# We run a .py file, and when reporting, we can't parse it as Python.
# We should get an error message in the report.
self.run_command("coverage run mycode.py")
self.make_file("mycode.py", "This isn't python at all!")
report = self.report_from_command("coverage -r mycode.py")
# pylint: disable=C0301
# Name Stmts Miss Cover
# ----------------------------
# mycode NotPython: Couldn't parse '/tmp/test_cover/63354509363/mycode.py' as Python source: 'invalid syntax' at line 1
last = self.last_line_squeezed(report)
# The actual file name varies run to run.
last = re.sub(r"parse '.*mycode.py", "parse 'mycode.py", last)
# The actual error message varies version to version
last = re.sub(r": '.*' at", ": 'error' at", last)
self.assertEqual(last,
"mycode NotPython: "
"Couldn't parse 'mycode.py' as Python source: "
"'error' at line 1"
)
def test_dotpy_not_python_ignored(self):
# We run a .py file, and when reporting, we can't parse it as Python,
# but we've said to ignore errors, so there's no error reported.
self.run_command("coverage run mycode.py")
self.make_file("mycode.py", "This isn't python at all!")
report = self.report_from_command("coverage -r -i mycode.py")
# Name Stmts Miss Cover
# ----------------------------
self.assertEqual(self.line_count(report), 2)
def test_dothtml_not_python(self):
# We run a .html file, and when reporting, we can't parse it as
# Python. Since it wasn't .py, no error is reported.
# Run an "html" file
self.make_file("mycode.html", "a = 1")
self.run_command("coverage run mycode.html")
# Before reporting, change it to be an HTML file.
self.make_file("mycode.html", "<h1>This isn't python at all!</h1>")
report = self.report_from_command("coverage -r mycode.html")
# Name Stmts Miss Cover
# ----------------------------
self.assertEqual(self.line_count(report), 2)
class SummaryTest2(CoverageTest):
"""Another bunch of summary tests."""
# This class exists because tests naturally clump into classes based on the
# needs of their setUp and tearDown, rather than the product features they
# are testing. There's probably a better way to organize these.
run_in_temp_dir = False
def setUp(self):
super(SummaryTest2, self).setUp()
# Parent class saves and restores sys.path, we can just modify it.
this_dir = os.path.dirname(__file__)
sys.path.append(self.nice_file(this_dir, 'modules'))
sys.path.append(self.nice_file(this_dir, 'moremodules'))
def test_empty_files(self):
# Shows that empty files like __init__.py are listed as having zero
# statements, not one statement.
cov = coverage.coverage()
cov.start()
import usepkgs # pylint: disable=F0401,W0612
cov.stop()
repout = StringIO()
cov.report(file=repout, show_missing=False)
report = repout.getvalue().replace('\\', '/')
report = re.sub(r"\s+", " ", report)
self.assert_("test/modules/pkg1/__init__ 1 0 100%" in report)
self.assert_("test/modules/pkg2/__init__ 0 0 100%" in report)
class ReportingReturnValue(CoverageTest):
"""Tests of reporting functions returning values."""
def run_coverage(self):
"""Run coverage on doit.py and return the coverage object."""
self.make_file("doit.py", """\
a = 1
b = 2
c = 3
d = 4
if a > 10:
f = 6
g = 7
""")
cov = coverage.coverage()
cov.start()
self.import_local_file("doit")
cov.stop()
return cov
def test_report(self):
cov = self.run_coverage()
val = cov.report(include="*/doit.py")
self.assertAlmostEqual(val, 85.7, 1)
def test_html(self):
cov = self.run_coverage()
val = cov.html_report(include="*/doit.py")
self.assertAlmostEqual(val, 85.7, 1)
def test_xml(self):
cov = self.run_coverage()
val = cov.xml_report(include="*/doit.py")
self.assertAlmostEqual(val, 85.7, 1)
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