[Android] Restrict tests inheriting from DocumentModeTestBase to phones.

base/test/android/javatests/src/org/chromium/base/test/util/MinAndroidSdkLevelSkipCheck.java

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.base.test.util;
+
+import android.os.Build;

[newt (away), 2016/03/07 18:07:09]

One import from each top-level package. Impressive...

[jbudorick, 2016/03/08 00:18:54]

yeah, it felt weird writing it.

+
+import junit.framework.TestCase;
+
+import org.chromium.base.Log;
+
+import java.lang.reflect.Method;
+
+/**
+ * Checks the device's SDK level against any specified minimum requirement.
+ */
+public class MinAndroidSdkLevelSkipCheck extends SkipCheck {
+
+    private static final String TAG = "base_test";
+
+    /**
+     * If {@link MinAndroidSdkLevel} is present, checks its value
+     * against the device's SDK level.
+     *
+     * @param testCase The test to check.
+     * @return true if the device's SDK level is below the specified minimum.
+     */
+    @Override
+    public boolean shouldSkip(TestCase testCase) {
+        Class testClass = testCase.getClass();
+        Method testMethod = getTestMethod(testCase);
+
+        int minSdkLevel = 0;
+        for (MinAndroidSdkLevel m : getAnnotations(testMethod, MinAndroidSdkLevel.class)) {
+            minSdkLevel = Math.max(minSdkLevel, m.value());
+        }
+
+        if (Build.VERSION.SDK_INT < minSdkLevel) {
+            Log.i(TAG, "Test " + testClass.getName() + "#" + testCase.getName()
+                    + " is not enabled at SDK level " + Build.VERSION.SDK_INT
+                    + ".");
+            return true;
+        }
+        return false;
+    }
+}