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test_summary.py
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test_summary.py
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"""Test text-based summary reporting for coverage.py"""
import os, re, sys
import coverage
from coverage.backward import StringIO
from tests.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 test_report(self):
out = self.run_command("coverage run mycode.py")
self.assertEqual(out, 'done\n')
report = self.report_from_command("coverage report")
# Name Stmts Miss Cover
# ---------------------------------------------------------------------
# c:/ned/coverage/trunk/tests/modules/covmod1 2 0 100%
# c:/ned/coverage/trunk/tests/zipmods.zip/covmodzip1 2 0 100%
# mycode 4 0 100%
# ---------------------------------------------------------------------
# TOTAL 8 0 100%
self.assertNotIn("/coverage/__init__/", report)
self.assertIn("/tests/modules/covmod1 ", report)
self.assertIn("/tests/zipmods.zip/covmodzip1 ", report)
self.assertIn("mycode ", 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 run mycode.py")
report = self.report_from_command("coverage report mycode.py")
# Name Stmts Miss Cover
# ----------------------------
# mycode 4 0 100%
self.assertEqual(self.line_count(report), 3)
self.assertNotIn("/coverage/", report)
self.assertNotIn("/tests/modules/covmod1 ", report)
self.assertNotIn("/tests/zipmods.zip/covmodzip1 ", report)
self.assertIn("mycode ", report)
self.assertEqual(self.last_line_squeezed(report), "mycode 4 0 100%")
def test_report_wildcard(self):
# Try reporting using wildcards to get the modules.
self.run_command("coverage run mycode.py")
report = self.report_from_command("coverage report my*.py")
# Name Stmts Miss Cover
# ----------------------------
# mycode 4 0 100%
self.assertEqual(self.line_count(report), 3)
self.assertNotIn("/coverage/", report)
self.assertNotIn("/tests/modules/covmod1 ", report)
self.assertNotIn("/tests/zipmods.zip/covmodzip1 ", report)
self.assertIn("mycode ", 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 run mycode.py")
report = self.report_from_command(
"coverage report --omit '%s/*'" % prefix
)
# Name Stmts Miss Cover
# ----------------------------
# mycode 4 0 100%
self.assertEqual(self.line_count(report), 3)
self.assertNotIn("/coverage/", report)
self.assertNotIn("/tests/modules/covmod1 ", report)
self.assertNotIn("/tests/zipmods.zip/covmodzip1 ", report)
self.assertIn("mycode ", 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.assertNotIn("/coverage/", report)
self.assertNotIn("/tests/modules/covmod1 ", report)
self.assertNotIn("/tests/zipmods.zip/covmodzip1 ", report)
self.assertIn("mycode ", 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.assertIn("mybranch ", report)
self.assertEqual(self.last_line_squeezed(report),
"mybranch 5 0 2 1 86%")
def test_report_show_missing(self):
self.make_file("mymissing.py", """\
def missing(x, y):
if x:
print("x")
return x
if y:
print("y")
try:
print("z")
1/0
print("Never!")
except ZeroDivisionError:
pass
return x
missing(0, 1)
""")
out = self.run_command("coverage run mymissing.py")
self.assertEqual(out, 'y\nz\n')
report = self.report_from_command("coverage report --show-missing")
# Name Stmts Miss Cover Missing
# -----------------------------------------
# mymissing 14 3 79% 3-4, 10
self.assertEqual(self.line_count(report), 3)
self.assertIn("mymissing ", report)
self.assertEqual(self.last_line_squeezed(report),
"mymissing 14 3 79% 3-4, 10")
def test_report_show_missing_branches(self):
self.make_file("mybranch.py", """\
def branch(x, y):
if x:
print("x")
if y:
print("y")
return x
branch(1, 1)
""")
out = self.run_command("coverage run --branch mybranch.py")
self.assertEqual(out, 'x\ny\n')
report = self.report_from_command("coverage report --show-missing")
# Name Stmts Miss Branch BrPart Cover Missing
# -------------------------------------------------------
# mybranch 7 0 4 2 82% 2->4, 4->6
self.assertEqual(self.line_count(report), 3)
self.assertIn("mybranch ", report)
self.assertEqual(self.last_line_squeezed(report),
"mybranch 7 0 4 2 82% 2->4, 4->6")
def test_report_show_missing_branches_and_lines(self):
self.make_file("main.py", """\
import mybranch
""")
self.make_file("mybranch.py", """\
def branch(x, y, z):
if x:
print("x")
if y:
print("y")
if z:
if x and y:
print("z")
return x
branch(1, 1, 0)
""")
out = self.run_command("coverage run --branch main.py")
self.assertEqual(out, 'x\ny\n')
report = self.report_from_command("coverage report --show-missing")
# Name Stmts Miss Branch BrPart Cover Missing
# -------------------------------------------------------
# main 1 0 0 0 100%
# mybranch 10 2 8 3 61% 7-8, 2->4, 4->6, 6->7
# -------------------------------------------------------
# TOTAL 11 2 8 3 63%
self.assertEqual(self.line_count(report), 6)
squeezed = self.squeezed_lines(report)
self.assertEqual(
squeezed[2],
"main 1 0 0 0 100%"
)
self.assertEqual(
squeezed[3],
"mybranch 10 2 8 3 61% 7-8, 2->4, 4->6, 6->7"
)
self.assertEqual(
squeezed[5],
"TOTAL 11 2 8 3 63%"
)
def test_report_skip_covered_no_branches(self):
self.make_file("main.py", """
import not_covered
def normal():
print("z")
normal()
""")
self.make_file("not_covered.py", """
def not_covered():
print("n")
""")
out = self.run_command("coverage run main.py")
self.assertEqual(out, "z\n")
report = self.report_from_command("coverage report --skip-covered")
# Name Stmts Miss Cover
# ---------------------------------
# not_covered 2 1 50%
self.assertEqual(self.line_count(report), 3, report)
squeezed = self.squeezed_lines(report)
self.assertEqual(squeezed[2], "not_covered 2 1 50%")
def test_report_skip_covered_branches(self):
self.make_file("main.py", """
import not_covered
def normal(z):
if z:
print("z")
normal(True)
normal(False)
""")
self.make_file("not_covered.py", """
def not_covered(n):
if n:
print("n")
not_covered(True)
""")
out = self.run_command("coverage run --branch main.py")
self.assertEqual(out, "n\nz\n")
report = self.report_from_command("coverage report --skip-covered")
# Name Stmts Miss Branch BrPart Cover
# -----------------------------------------------
# not_covered 4 0 2 1 83%
self.assertEqual(self.line_count(report), 3, report)
squeezed = self.squeezed_lines(report)
self.assertEqual(squeezed[2], "not_covered 4 0 2 1 83%")
def test_report_skip_covered_branches_with_totals(self):
self.make_file("main.py", """
import not_covered
import also_not_run
def normal(z):
if z:
print("z")
normal(True)
normal(False)
""")
self.make_file("not_covered.py", """
def not_covered(n):
if n:
print("n")
not_covered(True)
""")
self.make_file("also_not_run.py", """
def does_not_appear_in_this_film(ni):
print("Ni!")
""")
out = self.run_command("coverage run --branch main.py")
self.assertEqual(out, "n\nz\n")
report = self.report_from_command("coverage report --skip-covered")
# Name Stmts Miss Branch BrPart Cover
# -----------------------------------------------
# also_not_run 2 1 0 0 50%
# not_covered 4 0 2 1 83%
# -----------------------------------------------
# TOTAL 6 1 2 1 75%
self.assertEqual(self.line_count(report), 6, report)
squeezed = self.squeezed_lines(report)
self.assertEqual(squeezed[2], "also_not_run 2 1 0 0 50%")
self.assertEqual(squeezed[3], "not_covered 4 0 2 1 83%")
self.assertEqual(squeezed[5], "TOTAL 6 1 2 1 75%")
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 report mycode.py")
# pylint: disable=line-too-long
# 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 report -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 report mycode.html")
# Name Stmts Miss Cover
# ----------------------------
self.assertEqual(self.line_count(report), 2)
def get_report(self, cov):
"""Get the report from `cov`, and canonicalize it."""
repout = StringIO()
cov.report(file=repout, show_missing=False)
report = repout.getvalue().replace('\\', '/')
report = re.sub(r" +", " ", report)
return report
def test_bug_156_file_not_run_should_be_zero(self):
# https://bitbucket.org/ned/coveragepy/issue/156
self.make_file("mybranch.py", """\
def branch(x):
if x:
print("x")
return x
branch(1)
""")
self.make_file("main.py", """\
print("y")
""")
cov = coverage.coverage(branch=True, source=["."])
cov.start()
import main # pragma: nested # pylint: disable=import-error,unused-variable
cov.stop() # pragma: nested
report = self.get_report(cov).splitlines()
self.assertIn("mybranch 5 5 2 0 0%", report)
def run_TheCode_and_report_it(self):
"""A helper for the next few tests."""
cov = coverage.coverage()
cov.start()
import TheCode # pragma: nested # pylint: disable=import-error,unused-variable
cov.stop() # pragma: nested
return self.get_report(cov)
def test_bug_203_mixed_case_listed_twice_with_rc(self):
self.make_file("TheCode.py", "a = 1\n")
self.make_file(".coveragerc", "[run]\nsource = .\n")
report = self.run_TheCode_and_report_it()
self.assertIn("TheCode", report)
self.assertNotIn("thecode", report)
def test_bug_203_mixed_case_listed_twice(self):
self.make_file("TheCode.py", "a = 1\n")
report = self.run_TheCode_and_report_it()
self.assertIn("TheCode", report)
self.assertNotIn("thecode", report)
if sys.platform == 'win32':
def test_pyw_files(self):
# https://bitbucket.org/ned/coveragepy/issue/261
self.make_file("start.pyw", """\
import mod
print("In start.pyw")
""")
self.make_file("mod.pyw", """\
print("In mod.pyw")
""")
cov = coverage.coverage()
cov.start()
import start # pragma: nested # pylint: disable=import-error,unused-variable
cov.stop() # pragma: nested
report = self.get_report(cov)
self.assertNotIn("NoSource", report)
report = report.splitlines()
self.assertIn("start 2 0 100%", report)
self.assertIn("mod 1 0 100%", report)
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 # pragma: nested # pylint: disable=import-error,unused-variable
cov.stop() # pragma: nested
repout = StringIO()
cov.report(file=repout, show_missing=False)
report = repout.getvalue().replace('\\', '/')
report = re.sub(r"\s+", " ", report)
self.assertIn("tests/modules/pkg1/__init__ 1 0 100%", report)
self.assertIn("tests/modules/pkg2/__init__ 0 0 100%", report)
class ReportingReturnValueTest(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()
self.start_import_stop(cov, "doit")
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)