mattyb149 commented on a change in pull request #4012: NIFI-7055
createListValidator should treat "," as invalid
URL: https://github.com/apache/nifi/pull/4012#discussion_r384597165
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File path:
nifi-commons/nifi-utils/src/test/java/org/apache/nifi/util/validator/TestStandardValidators.java
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@@ -184,6 +184,25 @@ public void testListValidator() {
assertFalse(vr.isValid());
assertEquals(1, mockValidator.getValidateCallCount());
+ // An empty list is the same as null, "" or " "
+ vr = val.validate("List", ",", validationContext);
+ assertFalse(vr.isValid());
+ assertEquals(0, mockValidator.getValidateCallCount());
+
+ vr = val.validate("List", " , ", validationContext);
+ assertFalse(vr.isValid());
+ assertEquals(1, mockValidator.getValidateCallCount());
+
+ // will evaluate to no entry
+ vr = val.validate("List", ",,,,", validationContext);
+ assertFalse(vr.isValid());
+ assertEquals(0, mockValidator.getValidateCallCount());
+
+ // will evaluate to an empty element
+ vr = val.validate("List", ",foo", validationContext);
Review comment:
Ah I see, it's because you're using a non-empty validator for each element.
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