Test to verify extremely large downloads.

Streams a 3GB file to verify that it downloads correctly, using new
MockWebServer streaming API.

Bug: 8209169
Change-Id: Ic36271bfef3176e1ccea2b40edc7abb1044222f1

1 files changed, 58 insertions, 0 deletions

diff --git a/tests/src/com/android/providers/downloads/FakeInputStream.java b/tests/src/com/android/providers/downloads/FakeInputStream.java
new file mode 100644
index 00000000..179ae6e9
--- /dev/null
+++ b/tests/src/com/android/providers/downloads/FakeInputStream.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2013 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.providers.downloads;
+
+import java.io.InputStream;
+import java.util.Arrays;
+
+/**
+ * Provides fake data for large transfers.
+ */
+public class FakeInputStream extends InputStream {
+    private long mRemaining;
+
+    public FakeInputStream(long length) {
+        mRemaining = length;
+    }
+
+    @Override
+    public int read() {
+        final int value;
+        if (mRemaining > 0) {
+            mRemaining--;
+            return 0;
+        } else {
+            return -1;
+        }
+    }
+
+    @Override
+    public int read(byte[] buffer, int offset, int length) {
+        Arrays.checkOffsetAndCount(buffer.length, offset, length);
+
+        if (length > mRemaining) {
+            length = (int) mRemaining;
+        }
+        mRemaining -= length;
+
+        if (length == 0) {
+            return -1;
+        } else {
+            return length;
+        }
+    }
+}