converted to become a parameterized test

Signed-off-by: Santhosh Gandhe <1909520+san81@users.noreply.github.com>

Author: san81

data-prepper-plugins/date-processor/src/test/java/org/opensearch/dataprepper/plugins/processor/date/DateProcessorConfigTest.java

@@ -69,24 +69,28 @@ void isValidMatchAndFromTimestampReceived_should_return_false_if_from_time_recei
             assertThat(dateProcessorConfig.isValidMatchAndFromTimestampReceived(), equalTo(false));
         }
 
-        @Test
-        void testValidAndInvalidOutputFormats() throws NoSuchFieldException, IllegalAccessException {
-            // Use a string with invalid pattern characters (] and [ are reserved and will always fail)
-            setField(DateProcessorConfig.class, dateProcessorConfig, "outputFormat", "invalid[pattern]format");
-            assertThat(dateProcessorConfig.isValidOutputFormat(), equalTo(false));
-
-            setField(DateProcessorConfig.class, dateProcessorConfig, "outputFormat", "epoch_second");
-            assertThat(dateProcessorConfig.isValidOutputFormat(), equalTo(true));
-            setField(DateProcessorConfig.class, dateProcessorConfig, "outputFormat", "epoch_milli");
-            assertThat(dateProcessorConfig.isValidOutputFormat(), equalTo(true));
-            setField(DateProcessorConfig.class, dateProcessorConfig, "outputFormat", "epoch_nano");
-            assertThat(dateProcessorConfig.isValidOutputFormat(), equalTo(true));
-            setField(DateProcessorConfig.class, dateProcessorConfig, "outputFormat", "epoch_micro");
+        @ParameterizedTest
+        @ValueSource(strings = {
+            "epoch_second",
+            "epoch_milli",
+            "epoch_nano",
+            "epoch_micro",
+            "yyyy-MM-dd'T'HH:mm:ss.nnnnnnnnnXXX"
+        })
+        void testValidOutputFormats(String outputFormat) throws NoSuchFieldException, IllegalAccessException {
+            setField(DateProcessorConfig.class, dateProcessorConfig, "outputFormat", outputFormat);
             assertThat(dateProcessorConfig.isValidOutputFormat(), equalTo(true));
-            setField(DateProcessorConfig.class, dateProcessorConfig, "outputFormat", "epoch_xyz");
+        }
+
+        @ParameterizedTest
+        @ValueSource(strings = {
+            "invalid[pattern]format",
+            "epoch_xyz",
+            "epoch_invalid"
+        })
+        void testInvalidOutputFormats(String outputFormat) throws NoSuchFieldException, IllegalAccessException {
+            setField(DateProcessorConfig.class, dateProcessorConfig, "outputFormat", outputFormat);
             assertThat(dateProcessorConfig.isValidOutputFormat(), equalTo(false));
-            setField(DateProcessorConfig.class, dateProcessorConfig, "outputFormat", "yyyy-MM-dd'T'HH:mm:ss.nnnnnnnnnXXX");
-            assertThat(dateProcessorConfig.isValidOutputFormat(), equalTo(true));
         }
 
         @Test