libion: initial unit tests
Change-Id: I5502b71d0c7c24d7fd59e4880033657f840b341a
diff --git a/libion/tests/map_test.cpp b/libion/tests/map_test.cpp
new file mode 100644
index 0000000..c006dc8
--- /dev/null
+++ b/libion/tests/map_test.cpp
@@ -0,0 +1,162 @@
+/*
+ * 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.
+ */
+
+#include <sys/mman.h>
+
+#include <gtest/gtest.h>
+
+#include <ion/ion.h>
+
+#include "ion_test_fixture.h"
+
+class Map : public IonAllHeapsTest {
+};
+
+TEST_F(Map, MapHandle)
+{
+ static const size_t allocationSizes[] = {4*1024, 64*1024, 1024*1024, 2*1024*1024};
+ for (unsigned int heapMask : m_allHeaps) {
+ for (size_t size : allocationSizes) {
+ SCOPED_TRACE(::testing::Message() << "heap " << heapMask);
+ SCOPED_TRACE(::testing::Message() << "size " << size);
+ ion_user_handle_t handle = 0;
+
+ ASSERT_EQ(0, ion_alloc(m_ionFd, size, 0, heapMask, 0, &handle));
+ ASSERT_TRUE(handle != 0);
+
+ int map_fd = -1;
+ unsigned char *ptr = NULL;
+ ASSERT_EQ(0, ion_map(m_ionFd, handle, size, PROT_READ | PROT_WRITE, MAP_SHARED, 0, &ptr, &map_fd));
+ ASSERT_TRUE(ptr != NULL);
+ ASSERT_GE(map_fd, 0);
+
+ ASSERT_EQ(0, close(map_fd));
+
+ ASSERT_EQ(0, ion_free(m_ionFd, handle));
+
+ memset(ptr, 0xaa, size);
+
+ ASSERT_EQ(0, munmap(ptr, size));
+ }
+ }
+}
+
+TEST_F(Map, MapFd)
+{
+ static const size_t allocationSizes[] = {4*1024, 64*1024, 1024*1024, 2*1024*1024};
+ for (unsigned int heapMask : m_allHeaps) {
+ for (size_t size : allocationSizes) {
+ SCOPED_TRACE(::testing::Message() << "heap " << heapMask);
+ SCOPED_TRACE(::testing::Message() << "size " << size);
+ int map_fd = -1;
+
+ ASSERT_EQ(0, ion_alloc_fd(m_ionFd, size, 0, heapMask, 0, &map_fd));
+ ASSERT_GE(map_fd, 0);
+
+ void *ptr;
+ ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0);
+ ASSERT_TRUE(ptr != NULL);
+
+ ASSERT_EQ(0, close(map_fd));
+
+ memset(ptr, 0xaa, size);
+
+ ASSERT_EQ(0, munmap(ptr, size));
+ }
+ }
+}
+
+TEST_F(Map, MapOffset)
+{
+ for (unsigned int heapMask : m_allHeaps) {
+ SCOPED_TRACE(::testing::Message() << "heap " << heapMask);
+ int map_fd = -1;
+
+ ASSERT_EQ(0, ion_alloc_fd(m_ionFd, PAGE_SIZE * 2, 0, heapMask, 0, &map_fd));
+ ASSERT_GE(map_fd, 0);
+
+ unsigned char *ptr;
+ ptr = (unsigned char *)mmap(NULL, PAGE_SIZE * 2, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0);
+ ASSERT_TRUE(ptr != NULL);
+
+ memset(ptr, 0, PAGE_SIZE);
+ memset(ptr + PAGE_SIZE, 0xaa, PAGE_SIZE);
+
+ ASSERT_EQ(0, munmap(ptr, PAGE_SIZE * 2));
+
+ ptr = (unsigned char *)mmap(NULL, PAGE_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, PAGE_SIZE);
+ ASSERT_TRUE(ptr != NULL);
+
+ ASSERT_EQ(ptr[0], 0xaa);
+ ASSERT_EQ(ptr[PAGE_SIZE - 1], 0xaa);
+
+ ASSERT_EQ(0, munmap(ptr, PAGE_SIZE));
+
+ ASSERT_EQ(0, close(map_fd));
+ }
+}
+
+TEST_F(Map, MapCached)
+{
+ static const size_t allocationSizes[] = {4*1024, 64*1024, 1024*1024, 2*1024*1024};
+ for (unsigned int heapMask : m_allHeaps) {
+ for (size_t size : allocationSizes) {
+ SCOPED_TRACE(::testing::Message() << "heap " << heapMask);
+ SCOPED_TRACE(::testing::Message() << "size " << size);
+ int map_fd = -1;
+ unsigned int flags = ION_FLAG_CACHED;
+
+ ASSERT_EQ(0, ion_alloc_fd(m_ionFd, size, 0, heapMask, flags, &map_fd));
+ ASSERT_GE(map_fd, 0);
+
+ void *ptr;
+ ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0);
+ ASSERT_TRUE(ptr != NULL);
+
+ ASSERT_EQ(0, close(map_fd));
+
+ memset(ptr, 0xaa, size);
+
+ ASSERT_EQ(0, munmap(ptr, size));
+ }
+ }
+}
+
+TEST_F(Map, MapCachedNeedsSync)
+{
+ static const size_t allocationSizes[] = {4*1024, 64*1024, 1024*1024, 2*1024*1024};
+ for (unsigned int heapMask : m_allHeaps) {
+ for (size_t size : allocationSizes) {
+ SCOPED_TRACE(::testing::Message() << "heap " << heapMask);
+ SCOPED_TRACE(::testing::Message() << "size " << size);
+ int map_fd = -1;
+ unsigned int flags = ION_FLAG_CACHED | ION_FLAG_CACHED_NEEDS_SYNC;
+
+ ASSERT_EQ(0, ion_alloc_fd(m_ionFd, size, 0, heapMask, flags, &map_fd));
+ ASSERT_GE(map_fd, 0);
+
+ void *ptr;
+ ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0);
+ ASSERT_TRUE(ptr != NULL);
+
+ ASSERT_EQ(0, close(map_fd));
+
+ memset(ptr, 0xaa, size);
+
+ ASSERT_EQ(0, munmap(ptr, size));
+ }
+ }
+}