libion: initial unit tests

Change-Id: I5502b71d0c7c24d7fd59e4880033657f840b341a
diff --git a/libion/tests/ion_test_fixture.h b/libion/tests/ion_test_fixture.h
new file mode 100644
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--- /dev/null
+++ b/libion/tests/ion_test_fixture.h
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+/*
+ * 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.
+ */
+
+#ifndef ION_TEST_FIXTURE_H_
+#define ION_TEST_FIXTURE_H_
+
+#include <gtest/gtest.h>
+
+using ::testing::Test;
+
+class IonTest : public virtual Test {
+ public:
+    IonTest();
+	virtual ~IonTest() {};
+	virtual void SetUp();
+	virtual void TearDown();
+	int m_ionFd;
+};
+
+class IonAllHeapsTest : public IonTest {
+ public:
+    IonAllHeapsTest();
+    virtual ~IonAllHeapsTest() {};
+    virtual void SetUp();
+    virtual void TearDown();
+
+    unsigned int m_firstHeap;
+    unsigned int m_lastHeap;
+
+    std::vector<unsigned int> m_allHeaps;
+};
+
+#endif /* ION_TEST_FIXTURE_H_ */