yfsn666 commented on code in PR #10854:
URL: https://github.com/apache/inlong/pull/10854#discussion_r1730286272
##########
inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformStringFunctionsProcessor.java:
##########
@@ -184,6 +186,36 @@ public void testTrimFunction() throws Exception {
Assert.assertEquals(output3.get(0), "result=in long");
}
+ @Test
+ public void testReverseFunction() throws Exception {
+ String transformSql1 = "select reverse(string1) from source";
+ TransformConfig config1 = new TransformConfig(transformSql1);
+ TransformProcessor<String, String> processor1 = TransformProcessor
+ .create(config1,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case1: reverse('apple')
+ List<String> output1 =
processor1.transform("apple|banana|cloud|2|1|3", new HashMap<>());
+ Assert.assertEquals(1, output1.size());
+ Assert.assertEquals(output1.get(0), "result=elppa");
+ // case2: reverse('ban ana ')
+ String transformSql2 = "select reverse(string2) from source";
+ TransformConfig config2 = new TransformConfig(transformSql2);
+ TransformProcessor<String, String> processor2 = TransformProcessor
+ .create(config2,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ List<String> output2 = processor2.transform("apple|ban ana
|cloud|2|1|3", new HashMap<>());
+ Assert.assertEquals(1, output2.size());
+ Assert.assertEquals(output2.get(0), "result= ana nab");
+ // case3: reverse(12345)
+ List<String> output3 =
processor1.transform("12345|banana|cloud|2|1|3", new HashMap<>());
+ Assert.assertEquals(1, output3.size());
+ Assert.assertEquals(output3.get(0), "result=54321");
+ // 4: reverse(null)
Review Comment:
```suggestion
// case4: reverse(null)
```
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