Add test for Pair

Author: swallez

java-client/src/test/java/co/elastic/clients/util/PairTest.java

@@ -0,0 +1,45 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package co.elastic.clients.util;
+
+import co.elastic.clients.elasticsearch._types.FieldValue;
+import co.elastic.clients.elasticsearch.model.ModelTestCase;
+import co.elastic.clients.elasticsearch.watcher.Condition;
+import co.elastic.clients.elasticsearch.watcher.ConditionOp;
+import org.junit.jupiter.api.Test;
+
+class PairTest extends ModelTestCase {
+
+    @Test
+    public void testCondition() {
+
+        String json = "{\"compare\":{\"foo\":{\"eq\":\"bar\"}}}";
+
+        Condition c = Condition.of(b -> b
+            .compare(NamedValue.of("foo", Pair.of(ConditionOp.Eq, FieldValue.of("bar"))))
+        );
+
+        c = checkJsonRoundtrip(c, json);
+
+        assertEquals("foo", c.compare().name());
+        assertEquals(ConditionOp.Eq, c.compare().value().key());
+        assertEquals("bar", c.compare().value().value().stringValue());
+    }
+}