1 files changed, 68 insertions, 0 deletions
diff --git a/sdksandbox/tests/cts/hostside/provider/src/com/android/sdksandbox/cts/provider/dataisolationtest/DataIsolationTestSdkApiImpl.java b/sdksandbox/tests/cts/hostside/provider/src/com/android/sdksandbox/cts/provider/dataisolationtest/DataIsolationTestSdkApiImpl.java
new file mode 100644
index 0000000000..273ee00426
--- /dev/null
+++ b/sdksandbox/tests/cts/hostside/provider/src/com/android/sdksandbox/cts/provider/dataisolationtest/DataIsolationTestSdkApiImpl.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2022 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.sdksandbox.cts.provider.dataisolationtest;
+
+import android.content.Context;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+
+public class DataIsolationTestSdkApiImpl extends IDataIsolationTestSdkApi.Stub {
+    private final Context mContext;
+
+    private static final String TAG = "SdkSandboxDataIsolationTestProvider";
+
+    private static final String JAVA_FILE_PERMISSION_DENIED_MSG =
+            "open failed: EACCES (Permission denied)";
+    private static final String JAVA_FILE_NOT_FOUND_MSG =
+            "open failed: ENOENT (No such file or directory)";
+    private static final String JAVA_IS_A_DIRECTORY_ERROR_MSG =
+            "open failed: EISDIR (Is a directory)";
+
+    public DataIsolationTestSdkApiImpl(Context sdkContext) {
+        mContext = sdkContext;
+    }
+
+    @Override
+    public void testSdkSandboxDataIsolation_SandboxCanAccessItsDirectory() {
+        verifyDirectoryAccess(mContext.getDataDir().toString(), true);
+    }
+
+    private void verifyDirectoryAccess(String path, boolean shouldBeAccessible) {
+        File file = new File(path);
+        try {
+            new FileInputStream(file);
+        } catch (FileNotFoundException exception) {
+            String exceptionMsg = exception.getMessage();
+            if (shouldBeAccessible) {
+                if (!exceptionMsg.contains(JAVA_IS_A_DIRECTORY_ERROR_MSG)) {
+                    throw new IllegalStateException(
+                            path + " should be accessible, but received error: " + exceptionMsg);
+                }
+            } else if (!exceptionMsg.contains(JAVA_FILE_NOT_FOUND_MSG)
+                    || exceptionMsg.contains(JAVA_FILE_PERMISSION_DENIED_MSG)
+                    || exceptionMsg.contains(JAVA_IS_A_DIRECTORY_ERROR_MSG)) {
+                throw new IllegalStateException(
+                        "Accessing "
+                                + path
+                                + " should have shown ENOENT error, but received error: "
+                                + exceptionMsg);
+            }
+        }
+    }
+}