Create test to prove config check is broken

Author: tebriel

src/test/java/com/splunk/kafka/connect/SplunkSinkConnecterTest.java

@@ -207,6 +207,21 @@ public void testInvalidIndex() {
         Assertions.assertThrows(ConfigException.class, ()->connector.validate(configs));
     }
 
+    @Test
+    public void testValidMultipleURIs() {
+        final Map<String, String> configs = new HashMap<>();
+        addNecessaryConfigs(configs);
+        SplunkSinkConnector connector = new SplunkSinkConnector();
+        configs.put("topics", "b");
+        configs.put("splunk.indexes", "b");
+        configs.put("splunk.hec.uri", "https://localhost:8088,https://localhost:8089");
+        configs.put("splunk.hec.ssl.validate.certs", "false");
+        MockHecClientWrapper clientInstance = new MockHecClientWrapper();
+        clientInstance.client.setResponse(CloseableHttpClientMock.success);
+        ((SplunkSinkConnector) connector).setHecInstance(clientInstance);
+        Assertions.assertDoesNotThrow(()->connector.validate(configs));
+    }
+
     @Test
     public void testValidSplunkConfigurations() {
         final Map<String, String> configs = new HashMap<>();
@@ -237,4 +252,4 @@ private void assertHasErrorMessage(Config config, String property, String msg) {
     private void assertNoErrors(Config config) {
         config.configValues().forEach(c -> assertTrue(c.errorMessages().isEmpty()));
     }
-}
+}