Add PropertyUtils to get first_api_level property
Also add host-side PropertyUtil class for easy retrieval of first_api_level
property
bug: 34680303
Test: make cts, run unit tests
merged-in: I97257ae109a37e54a8a208ad4396122e5ce1251e
Change-Id: I94332247c3b8eac0e5959cbc72be1062d7582d8e
diff --git a/common/device-side/util/Android.mk b/common/device-side/util/Android.mk
index 350c2db..8eb125c 100644
--- a/common/device-side/util/Android.mk
+++ b/common/device-side/util/Android.mk
@@ -24,7 +24,8 @@
LOCAL_MODULE := compatibility-device-util
-LOCAL_SDK_VERSION := current
+# uncomment when b/13282254 is fixed
+#LOCAL_SDK_VERSION := current
include $(BUILD_STATIC_JAVA_LIBRARY)
diff --git a/common/device-side/util/src/com/android/compatibility/common/util/PropertyUtil.java b/common/device-side/util/src/com/android/compatibility/common/util/PropertyUtil.java
new file mode 100644
index 0000000..1a1ec19
--- /dev/null
+++ b/common/device-side/util/src/com/android/compatibility/common/util/PropertyUtil.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2017 The Android Open Source 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 com.android.compatibility.common.util;
+
+import android.os.Build;
+import android.os.SystemProperties;
+
+/**
+ * Device-side utility class for reading properties and gathering information for testing
+ * Android device compatibility.
+ */
+public class PropertyUtil {
+
+ /**
+ * Name of read-only property detailing the first API level for which the product was
+ * shipped. Property should be undefined for factory ROM products.
+ */
+ public static String FIRST_API_LEVEL = "ro.product.first_api_level";
+
+ /** Value to be returned by getPropertyInt() if property is not found */
+ public static int INT_VALUE_IF_UNSET = -1;
+
+ /** Returns whether the device build is the factory ROM */
+ public static boolean isFactoryROM() {
+ // property should be undefined if and only if the product is factory ROM.
+ return getPropertyInt(FIRST_API_LEVEL) == INT_VALUE_IF_UNSET;
+ }
+
+ /**
+ * Return the first API level for this product. If the read-only property is unset,
+ * this means the first API level is the current API level, and the current API level
+ * is returned.
+ */
+ public static int getFirstApiLevel() {
+ int firstApiLevel = getPropertyInt(FIRST_API_LEVEL);
+ return (firstApiLevel == INT_VALUE_IF_UNSET) ? Build.VERSION.SDK_INT : firstApiLevel;
+ }
+
+ /**
+ * Retrieves the desired integer property, returning INT_VALUE_IF_UNSET if not found.
+ */
+ public static int getPropertyInt(String property) {
+ return SystemProperties.getInt(property, INT_VALUE_IF_UNSET);
+ }
+}
diff --git a/common/host-side/util/src/com/android/compatibility/common/util/PropertyUtil.java b/common/host-side/util/src/com/android/compatibility/common/util/PropertyUtil.java
new file mode 100644
index 0000000..199b826
--- /dev/null
+++ b/common/host-side/util/src/com/android/compatibility/common/util/PropertyUtil.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2017 The Android Open Source 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 com.android.compatibility.common.util;
+
+import com.android.tradefed.device.DeviceNotAvailableException;
+import com.android.tradefed.device.ITestDevice;
+
+/**
+ * Host-side utility class for reading properties and gathering information for testing
+ * Android device compatibility.
+ */
+public class PropertyUtil {
+
+ /**
+ * Name of read-only property detailing the first API level for which the product was
+ * shipped. Property should be undefined for factory ROM products.
+ */
+ public static String FIRST_API_LEVEL = "ro.product.first_api_level";
+
+ /** Returns whether the device build is the factory ROM */
+ public static boolean isFactoryROM(ITestDevice device) throws DeviceNotAvailableException {
+ // first API level property should be undefined if and only if the product is factory ROM.
+ return device.getProperty(FIRST_API_LEVEL) == null;
+ }
+
+ /**
+ * Return the first API level for this product. If the read-only property is unset,
+ * this means the first API level is the current API level, and the current API level
+ * is returned.
+ */
+ public static int getFirstApiLevel(ITestDevice device) throws DeviceNotAvailableException {
+ String propString = device.getProperty(FIRST_API_LEVEL);
+ return (propString == null) ? device.getApiLevel() : Integer.parseInt(propString);
+ }
+}
diff --git a/tests/tests/security/src/android/security/cts/EncryptionTest.java b/tests/tests/security/src/android/security/cts/EncryptionTest.java
index 1d37ec6..85d82e2 100644
--- a/tests/tests/security/src/android/security/cts/EncryptionTest.java
+++ b/tests/tests/security/src/android/security/cts/EncryptionTest.java
@@ -16,12 +16,13 @@
package android.security.cts;
+import com.android.compatibility.common.util.PropertyUtil;
+
import android.test.AndroidTestCase;
import junit.framework.TestCase;
import android.app.ActivityManager;
import android.content.Context;
-import android.os.SystemProperties;
import android.util.Log;
import java.io.BufferedReader;
import java.io.FileReader;
@@ -34,7 +35,7 @@
System.loadLibrary("ctssecurity_jni");
}
- private static final int min_api_level = 23;
+ private static final int MIN_API_LEVEL = 23;
private static final String TAG = "EncryptionTest";
@@ -77,15 +78,8 @@
}
private boolean isRequired() {
- int first_api_level =
- SystemProperties.getInt("ro.product.first_api_level", 0);
-
- // Optional before min_api_level or if the device has low RAM
- if (first_api_level > 0 && first_api_level < min_api_level) {
- return false;
- } else {
- return !hasLowRAM();
- }
+ // Optional before MIN_API_LEVEL or if the device has low RAM
+ return PropertyUtil.getFirstApiLevel() >= MIN_API_LEVEL && !hasLowRAM();
}
public void testConfig() throws Exception {
