Github user cestella commented on a diff in the pull request:
https://github.com/apache/incubator-metron/pull/516#discussion_r110431257
--- Diff:
metron-platform/metron-common/src/test/java/org/apache/metron/common/dsl/functions/StringFunctionsTest.java
---
@@ -207,4 +207,78 @@ public void testFormatWithNoArguments() throws
Exception {
public void testFormatWithMissingArguments() throws Exception {
run("FORMAT('missing arg: %d')", Collections.emptyMap());
}
+
+
+ /**
+ * CHOP StringFunction
+ * @throws Exception
+ */
+ @Test
+ public void testChop() throws Exception {
+ Assert.assertEquals("ab", run("CHOP('abc')", new HashedMap()));
+ Assert.assertEquals(null, run("CHOP(null)", new HashedMap()));
+ Assert.assertEquals("abc", run("CHOP(msg)", ImmutableMap.of("msg",
"abc\r\n")));
--- End diff --
Because it's coming in through a variable `msg`. The idea being that it
could be existent in a message flowing through the topologies. Stellar can't
represent `\n` and `\r`, but they can get in there honestly.
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