cmsdk: Add unit tests for versioning with os.Build

Change-Id: I0efbd7a3d23dc3b29b06219ecbf3887f17fe6801
diff --git a/tests/src/org/cyanogenmod/tests/versioning/unit/BuildTest.java b/tests/src/org/cyanogenmod/tests/versioning/unit/BuildTest.java
new file mode 100644
index 0000000..fea1f27
--- /dev/null
+++ b/tests/src/org/cyanogenmod/tests/versioning/unit/BuildTest.java
@@ -0,0 +1,59 @@
+/**
+ * Copyright (c) 2015, The CyanogenMod Project
+ *
+ * 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 org.cyanogenmod.tests.versioning.unit;
+
+import android.test.suitebuilder.annotation.SmallTest;
+import cyanogenmod.os.Build;
+
+import android.test.AndroidTestCase;
+
+/**
+ * Created by adnan on 7/14/15.
+ */
+public class BuildTest extends AndroidTestCase {
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+    }
+
+    @SmallTest
+    public void testFetchSdkApiLevelExists() {
+        assertNotNull(Build.CM_VERSION.SDK_INT);
+    }
+
+    @SmallTest
+    public void testSdkApiLevelCurrent() {
+        assertEquals(Build.CM_VERSION_CODES.BOYSENBERRY, Build.CM_VERSION.SDK_INT);
+    }
+
+    @SmallTest
+    public void testSdkApiLevelCanMatch() {
+        String apiName = Build.getNameForSDKInt(Build.CM_VERSION.SDK_INT);
+        assertNotNull(apiName);
+        assertEquals(Build.getNameForSDKInt(Build.CM_VERSION_CODES.BOYSENBERRY), apiName);
+    }
+
+    @SmallTest
+    public void testSdkApiLevelSkippedIfGreaterThanAllowed() {
+        int i = 0;
+        if (Build.CM_VERSION.SDK_INT > Build.CM_VERSION_CODES.BOYSENBERRY + 1) {
+            i++;
+        }
+        assertEquals(0, i);
+    }
+}