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https://issues.apache.org/jira/browse/METRON-624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15778542#comment-15778542
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ASF GitHub Bot commented on METRON-624:
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Github user jjmeyer0 commented on the issue:
https://github.com/apache/incubator-metron/pull/404
@cestella if comparing floats/doubles is going to be a common thing maybe
we should provide a way to do so easily. Maybe we create functions
FLOAT_EQUALS(f1, f2, epsilon) and DOUBLE_EQUALS(d1, d2, epsilon).
> Comparison Operators Evaluate Incorrectly
> -----------------------------------------
>
> Key: METRON-624
> URL: https://issues.apache.org/jira/browse/METRON-624
> Project: Metron
> Issue Type: Bug
> Reporter: Josh Meyer
> Labels: stellar
>
> Currently there is an issue with the way Stellar interprets comparison
> expressions. Currently it only compares numbers when both sides are numbers
> otherwise it converts both sides of the expression to a value and then
> compares them. Also, when looking at numbers it always gets double values to
> compare.
> Below is an example of a failing test that should pass.
> {code:theme=FadeToGrey|linenumbers=true|language=java|firstline=0001|collapse=false}
> @Test
> public void compareNumberAndStringWithSameValueShouldFail() throws
> Exception {
> final Map<String, String> variableMap = new HashMap<>();
> assertFalse(runPredicate("1 == '1'", variableMap::get));
> }
> {code}
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