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STR_CONTAINS should return false when input string is null #540

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Merged
merged 1 commit into from
Sep 23, 2025
Merged

STR_CONTAINS should return false when input string is null #540

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6 changes: 5 additions & 1 deletion src/main/java/com/ezylang/evalex/functions/string/StringContains.java
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,10 @@ public EvaluationValue evaluate(
Expression expression, Token functionToken, EvaluationValue... parameterValues) {
String string = parameterValues[0].getStringValue();
String substring = parameterValues[1].getStringValue();
return expression.convertValue(string.toUpperCase().contains(substring.toUpperCase()));
boolean result =
string != null
&& substring != null
&& string.toUpperCase().contains(substring.toUpperCase());
return expression.convertValue(result);
}
}
2 changes: 2 additions & 0 deletions src/test/java/com/ezylang/evalex/functions/string/StringFunctionsTest.java
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Expand Up @@ -63,6 +63,8 @@ void testLower(String expression, String expectedResult)
@CsvSource(
delimiter = ':',
value = {
"STR_CONTAINS(null, \"a\") : false",
"STR_CONTAINS(\"abc\", null) : false",
"STR_CONTAINS(\"\", \"\") : true",
"STR_CONTAINS(\"a\", \"a\") : true",
"STR_CONTAINS(\"Hello World\", \"Wor\") : true",
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