1 files changed, 79 insertions, 0 deletions
diff --git a/extras/src/test/java/com/google/gson/typeadapters/UtcDateTypeAdapterTest.java b/extras/src/test/java/com/google/gson/typeadapters/UtcDateTypeAdapterTest.java
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+++ b/extras/src/test/java/com/google/gson/typeadapters/UtcDateTypeAdapterTest.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2011 Google Inc.
+ *
+ * Licensed 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 com.google.gson.typeadapters;
+
+import java.text.SimpleDateFormat;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.Locale;
+import java.util.TimeZone;
+
+import junit.framework.TestCase;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+
+public final class UtcDateTypeAdapterTest extends TestCase {
+  private final Gson gson = new GsonBuilder()
+    .registerTypeAdapter(Date.class, new UtcDateTypeAdapter())
+    .create();
+
+  public void testLocalTimeZone() {
+    Date expected = new Date();
+    String json = gson.toJson(expected);
+    Date actual = gson.fromJson(json, Date.class);
+    assertEquals(expected.getTime(), actual.getTime());
+  }
+
+  public void testDifferentTimeZones() {
+    for (String timeZone : TimeZone.getAvailableIDs()) {
+      Calendar cal = Calendar.getInstance(TimeZone.getTimeZone(timeZone));
+      Date expected = cal.getTime();
+      String json = gson.toJson(expected);
+      // System.out.println(json + ": " + timeZone);
+      Date actual = gson.fromJson(json, Date.class);
+      assertEquals(expected.getTime(), actual.getTime());
+    }
+  }
+
+  /**
+   * JDK 1.7 introduced support for XXX format to indicate UTC date. But Android is older JDK.
+   * We want to make sure that this date is parseable in Android.
+   */
+  public void testUtcDatesOnJdkBefore1_7() {
+    Gson gson = new GsonBuilder()
+      .registerTypeAdapter(Date.class, new UtcDateTypeAdapter())
+      .create();
+    gson.fromJson("'2014-12-05T04:00:00.000Z'", Date.class);
+  }
+
+  public void testUtcWithJdk7Default() {
+    Date expected = new Date();
+    SimpleDateFormat iso8601Format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSXXX", Locale.US);
+    iso8601Format.setTimeZone(TimeZone.getTimeZone("UTC"));
+    String expectedJson = "\"" + iso8601Format.format(expected) + "\"";
+    String actualJson = gson.toJson(expected);
+    assertEquals(expectedJson, actualJson);
+    Date actual = gson.fromJson(expectedJson, Date.class);
+    assertEquals(expected.getTime(), actual.getTime());
+  }
+
+  public void testNullDateSerialization() {
+    String json = gson.toJson(null, Date.class);
+    assertEquals("null", json);
+  }
+}