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# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
# For details: https://bitbucket.org/ned/coveragepy/src/default/NOTICE.txt
# Test that the --timid command line argument properly swaps the tracer
# function for a simpler one.
#
# This is complicated by the fact that the tests are run twice for each
# version: once with a compiled C-based trace function, and once without
# it, to also test the Python trace function. So this test has to examine
# an environment variable set in igor.py to know whether to expect to see
# the C trace function or not.
import os
# When meta-coverage testing, this test doesn't work, because it finds
# coverage.py's own trace function.
if os.environ.get('COVERAGE_COVERAGE', ''):
skip("Can't test timid during coverage measurement.")
copy("src", "out_timid")
run("""
python showtrace.py none
coverage run showtrace.py regular
coverage run --timid showtrace.py timid
""", rundir="out_timid", outfile="showtraceout.txt")
# When running without coverage, no trace function
# When running timidly, the trace function is always Python.
contains("out_timid/showtraceout.txt",
"none None",
"timid PyTracer",
)
if os.environ.get('COVERAGE_TEST_TRACER', 'c') == 'c':
# If the C trace function is being tested, then regular running should have
# the C function, which registers itself as f_trace.
contains("out_timid/showtraceout.txt", "regular CTracer")
else:
# If the Python trace function is being tested, then regular running will
# also show the Python function.
contains("out_timid/showtraceout.txt", "regular PyTracer")
clean("out_timid")
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