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Improved the test performance_schema.func_file_io,

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so that investigating test failures is easier.

Detect cases when @before_count / @after_count is NULL.
This commit is contained in:
Marc Alff
2012-05-23 10:21:35 +02:00
parent 8aedf7d30f
commit be7a6d93cc
2 changed files with 16 additions and 0 deletions
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12
mysql-test/suite/perfschema/r/func_file_io.result
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@ -15,6 +15,9 @@ SET @before_count = (SELECT SUM(TIMER_WAIT)
FROM performance_schema.events_waits_history_long
WHERE (EVENT_NAME = 'wait/io/file/myisam/dfile')
AND (OBJECT_NAME LIKE '%t1.MYD'));
SELECT (@before_count >= 0) as have_before_count;
have_before_count
1
SELECT IF(@before_count > 0, 'Success', 'Failure') has_instrumentation;
has_instrumentation
Success
@ -27,6 +30,9 @@ SET @after_count = (SELECT SUM(TIMER_WAIT)
FROM performance_schema.events_waits_history_long
WHERE (EVENT_NAME = 'wait/io/file/myisam/dfile')
AND (OBJECT_NAME LIKE '%t1.MYD') AND (1 = 1));
SELECT (@after_count >= 0) as have_after_count;
have_after_count
1
SELECT IF((@after_count - @before_count) > 0, 'Success', 'Failure') test_ff1_timed;
test_ff1_timed
Success
@ -35,6 +41,9 @@ SET @before_count = (SELECT SUM(TIMER_WAIT)
FROM performance_schema.events_waits_history_long
WHERE (EVENT_NAME = 'wait/io/file/myisam/dfile')
AND (OBJECT_NAME LIKE '%t1.MYD') AND (2 = 2));
SELECT (@before_count >= 0) as have_before_count;
have_before_count
1
SELECT * FROM t1 WHERE id < 6;
id b
1 initial value
@ -46,6 +55,9 @@ SET @after_count = (SELECT SUM(TIMER_WAIT)
FROM performance_schema.events_waits_history_long
WHERE (EVENT_NAME = 'wait/io/file/myisam/dfile')
AND (OBJECT_NAME LIKE '%t1.MYD') AND (3 = 3));
SELECT (@after_count >= 0) as have_after_count;
have_after_count
1
SELECT IF((COALESCE(@after_count, 0) - COALESCE(@before_count, 0)) = 0, 'Success', 'Failure') test_ff2_timed;
test_ff2_timed
Success