1 files changed, 20 insertions, 0 deletions
diff --git a/vespalib/src/tests/data/memory_input/memory_input_test.cpp b/vespalib/src/tests/data/memory_input/memory_input_test.cpp
new file mode 100644
index 00000000000..a62283500f0
--- /dev/null
+++ b/vespalib/src/tests/data/memory_input/memory_input_test.cpp
@@ -0,0 +1,20 @@
+// Copyright 2017 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+#include <vespa/vespalib/testkit/testapp.h>
+#include <vespa/vespalib/data/memory_input.h>
+
+using namespace vespalib;
+
+TEST("require that MemoryInput wrapper works as expected") {
+    const char *data = "1234567890";
+    Memory memory(data);
+    EXPECT_EQUAL(memory.size, 10);
+    MemoryInput input(memory);
+    EXPECT_EQUAL(input.obtain(), memory);
+    input.evict(5);
+    EXPECT_EQUAL(input.obtain(), Memory(data + 5));    
+    EXPECT_EQUAL(input.obtain(), Memory(data + 5));    
+    input.evict(5);
+    EXPECT_EQUAL(input.obtain(), Memory());
+}
+
+TEST_MAIN() { TEST_RUN_ALL(); }