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#!/usr/bin/env python3
# Automatically formatted with yapf (https://github.com/google/yapf)
import subprocess
import unittest
def getFinalPasses(run):
stdout = run.stdout.decode()
stdout = stdout[: stdout.rfind("\n")]
stdout = stdout[stdout.rfind("\n") + 1 :]
return stdout
class Test(unittest.TestCase):
def test_0(self):
"""Test all passes are removed except those required to crash. Verify
that PM structure is intact."""
run_args = [
"./utils/reduce_pipeline.py",
"--opt-binary=./utils/reduce_pipeline_test/fake_opt.py",
"--input=/dev/null",
"--passes=a,b,c,A(d,B(e,f),g),h,i",
"-crash-seq=b,d,f",
]
run = subprocess.run(run_args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
self.assertEqual(run.returncode, 0)
self.assertEqual(getFinalPasses(run), '-passes="b,A(d,B(f))"')
def test_1(self):
"""Test all passes are removed except those required to crash. The
required passes in this case are the first and last in that order
(a bit of a corner-case for the reduction algorithm)."""
run_args = [
"./utils/reduce_pipeline.py",
"--opt-binary=./utils/reduce_pipeline_test/fake_opt.py",
"--input=/dev/null",
"--passes=a,b,c,A(d,B(e,f),g),h,i",
"-crash-seq=a,i",
]
run = subprocess.run(run_args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
self.assertEqual(run.returncode, 0)
self.assertEqual(getFinalPasses(run), '-passes="a,i"')
def test_2_0(self):
"""Test expansion of EXPAND_a_to_f (expands into 'a,b,c,d,e,f')."""
run_args = [
"./utils/reduce_pipeline.py",
"--opt-binary=./utils/reduce_pipeline_test/fake_opt.py",
"--input=/dev/null",
"--passes=EXPAND_a_to_f",
"-crash-seq=b,e",
]
run = subprocess.run(run_args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
self.assertEqual(run.returncode, 0)
self.assertEqual(getFinalPasses(run), '-passes="b,e"')
def test_2_1(self):
"""Test EXPAND_a_to_f and the '--dont-expand-passes' option."""
run_args = [
"./utils/reduce_pipeline.py",
"--opt-binary=./utils/reduce_pipeline_test/fake_opt.py",
"--input=/dev/null",
"--passes=EXPAND_a_to_f",
"-crash-seq=EXPAND_a_to_f",
"--dont-expand-passes",
]
run = subprocess.run(run_args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
self.assertEqual(run.returncode, 0)
self.assertEqual(getFinalPasses(run), '-passes="EXPAND_a_to_f"')
def test_3(self):
"""Test that empty pass-managers get removed by default."""
run_args = [
"./utils/reduce_pipeline.py",
"--opt-binary=./utils/reduce_pipeline_test/fake_opt.py",
"--input=/dev/null",
"--passes=a,b,c,A(d,B(e,f),g),h,i",
"-crash-seq=b,d,h",
]
run = subprocess.run(run_args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
self.assertEqual(run.returncode, 0)
self.assertEqual(getFinalPasses(run), '-passes="b,A(d),h"')
def test_4(self):
"""Test the '--dont-remove-empty-pm' option."""
run_args = [
"./utils/reduce_pipeline.py",
"--opt-binary=./utils/reduce_pipeline_test/fake_opt.py",
"--input=/dev/null",
"--passes=a,b,c,A(d,B(e,f),g),h,i",
"-crash-seq=b,d,h",
"--dont-remove-empty-pm",
]
run = subprocess.run(run_args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
self.assertEqual(run.returncode, 0)
self.assertEqual(getFinalPasses(run), '-passes="b,A(d,B()),h"')
unittest.main()
exit(0)
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