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Diffstat (limited to 'tests/test_stats_grammar.py')
| -rw-r--r-- | tests/test_stats_grammar.py | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tests/test_stats_grammar.py b/tests/test_stats_grammar.py index de62f21..5138efc 100644 --- a/tests/test_stats_grammar.py +++ b/tests/test_stats_grammar.py @@ -244,3 +244,13 @@ trappy.thermal.Thermal:temp" prs = Parser(trace, filters={"cdev_state": 3}) dfr_res = prs.solve("devfreq_out_power:freq") self.assertEquals(len(dfr_res), 1) + + def test_no_events(self): + """Test trying to parse absent data""" + trace = trappy.FTrace() + prs = Parser(trace) + + # cpu_frequency is an event we know how to parse, but it isn't present + # in the test trace. + self.assertRaisesRegexp(ValueError, "No events found for cpu_frequency", + prs.solve, "cpu_frequency:frequency") |