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Fix the error message for instance methods that don't exist #76512

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Aug 16, 2021
Merged

Fix the error message for instance methods that don't exist #76512

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2 changes: 1 addition & 1 deletion ...painless/src/main/java/org/elasticsearch/painless/phase/DefaultSemanticAnalysisPhase.java
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Original file line number Diff line number Diff line change
Expand Up @@ -1769,7 +1769,7 @@ public void visitCallLocal(ECallLocal userCallLocalNode, SemanticScope semanticS

if (instanceBinding == null) {
throw userCallLocalNode.createError(new IllegalArgumentException(
"Unknown call [" + methodName + "] with [" + userArgumentNodes + "] arguments."));
"Unknown call [" + methodName + "] with [" + userArgumentsSize + "] arguments."));
}
}
}
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7 changes: 7 additions & 0 deletions modules/lang-painless/src/test/java/org/elasticsearch/painless/WhenThingsGoWrongTests.java
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Expand Up @@ -850,4 +850,11 @@ public void testInvalidNullSafeBehavior() {
exec("def test = ['hostname': 'somehostname']; test?.hostname && params.host.hostname != ''"));
expectScriptThrows(NullPointerException.class, () -> exec("params?.host?.hostname && params.host?.hostname != ''"));
}

public void testInstanceMethodNotFound() {
IllegalArgumentException iae = expectScriptThrows(IllegalArgumentException.class, () -> exec("doesNotExist()"));
assertEquals(iae.getMessage(), "Unknown call [doesNotExist] with [0] arguments.");
iae = expectScriptThrows(IllegalArgumentException.class, () -> exec("doesNotExist(1, 'string', false)"));
assertEquals(iae.getMessage(), "Unknown call [doesNotExist] with [3] arguments.");
}
}