diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/unit/test_reduce.py | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/unit/test_reduce.py b/test/unit/test_reduce.py new file mode 100644 index 000000000..0abba604f --- /dev/null +++ b/test/unit/test_reduce.py @@ -0,0 +1,13 @@ +import subprocess + +from scripts.test import shared +from . import utils + + +class ReduceTest(utils.BinaryenTestCase): + def test_warn_on_no_passes(self): + # run a reducer command that does nothing, and so ignores the input + open('do_nothing.py', 'w').close() + cmd = shared.WASM_REDUCE + [self.input_path('empty.wasm'), '-w', 'w.wasm', '-t', 't.wasm', '--command=python do_nothing.py'] + err = shared.run_process(cmd, check=False, stderr=subprocess.PIPE).stderr + self.assertIn('Fatal: running the command on the given input gives the same result as when running it on either a trivial valid wasm or a file with nonsense in it. does the script not look at the test file (t.wasm)? (use -f to ignore this check)', err) |