Feature/managing index contents (Azure#57)

* IndexingTests as defined by user story Azure#928.

* Changed junit to StepVerifier for async test.

* Resolve nit comment.

sdk/search/azure-search-data/src/test/java/com/azure/search/data/tests/IndexingAsyncTests.java

@@ -0,0 +1,24 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+package com.azure.search.data.tests;
+
+import com.azure.search.data.SearchIndexAsyncClient;
+import reactor.core.publisher.Mono;
+import reactor.test.StepVerifier;
+
+public class IndexingAsyncTests extends IndexingTestBase {
+    private SearchIndexAsyncClient client;
+
+    @Override
+    public void countingDocsOfNewIndexGivesZero() {
+        Mono<Long> result = client.countDocuments();
+        Long expected = 0L;
+
+        StepVerifier.create(result).expectNext(expected).expectComplete().verify();
+    }
+
+    @Override
+    protected void initializeClient() {
+        client = builderSetup().indexName(INDEX_NAME).buildAsyncClient();
+    }
+}

sdk/search/azure-search-data/src/test/java/com/azure/search/data/tests/IndexingSyncTests.java

@@ -0,0 +1,23 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+package com.azure.search.data.tests;
+
+import com.azure.search.data.SearchIndexClient;
+import org.junit.Assert;
+
+public class IndexingSyncTests extends IndexingTestBase {
+    private SearchIndexClient client;
+
+    @Override
+    public void countingDocsOfNewIndexGivesZero() {
+        Long actual = client.countDocuments();
+        Long expected = 0L;
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Override
+    protected void initializeClient() {
+        client = builderSetup().indexName(INDEX_NAME).buildClient();
+    }
+}

sdk/search/azure-search-data/src/test/java/com/azure/search/data/tests/IndexingTestBase.java

@@ -0,0 +1,21 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+package com.azure.search.data.tests;
+
+import com.azure.search.data.env.SearchIndexClientTestBase;
+import org.junit.Test;
+
+public abstract class IndexingTestBase extends SearchIndexClientTestBase {
+    protected static final String INDEX_NAME = "hotels";
+
+    @Override
+    protected void beforeTest() {
+        super.beforeTest();
+        initializeClient();
+    }
+
+    @Test
+    public abstract void countingDocsOfNewIndexGivesZero();
+
+    protected abstract void initializeClient();
+}

sdk/search/azure-search-data/src/test/resources/session-records/countingDocsOfNewIndexGivesZero.json

@@ -0,0 +1,24 @@
+{
+  "networkCallRecords" : [ {
+    "Method" : "GET",
+    "Uri" : "https://azs-sdkfc967636577b.search.windows.net/indexes('hotels')/docs/$count?api-version=2019-05-06",
+    "Headers" : { },
+    "Response" : {
+      "Pragma" : "no-cache",
+      "retry-after" : "0",
+      "request-id" : "1fa44fac-55fd-4dc8-89ea-9cfea0d520c6",
+      "StatusCode" : "200",
+      "Date" : "Thu, 05 Sep 2019 01:38:15 GMT",
+      "Strict-Transport-Security" : "max-age=15724800; includeSubDomains",
+      "Cache-Control" : "no-cache",
+      "elapsed-time" : "109",
+      "OData-Version" : "4.0",
+      "Expires" : "-1",
+      "Content-Length" : "4",
+      "Body" : "0",
+      "Preference-Applied" : "odata.include-annotations=\"*\"",
+      "Content-Type" : "text/plain"
+    }
+  } ],
+  "variables" : [ ]
+}