1 files changed, 72 insertions, 0 deletions
diff --git a/media/libcubeb/test/test_ring_array.cpp b/media/libcubeb/test/test_ring_array.cpp
new file mode 100644
index 0000000000..a364684c77
--- /dev/null
+++ b/media/libcubeb/test/test_ring_array.cpp
@@ -0,0 +1,72 @@
+#include "gtest/gtest.h"
+#ifdef __APPLE__
+#include "cubeb/cubeb.h"
+#include "cubeb_ring_array.h"
+#include <CoreAudio/CoreAudioTypes.h>
+#include <iostream>
+#include <string.h>
+
+TEST(cubeb, ring_array)
+{
+  ring_array ra;
+
+  ASSERT_EQ(ring_array_init(&ra, 0, 0, 1, 1), CUBEB_ERROR_INVALID_PARAMETER);
+  ASSERT_EQ(ring_array_init(&ra, 1, 0, 0, 1), CUBEB_ERROR_INVALID_PARAMETER);
+
+  unsigned int capacity = 8;
+  ring_array_init(&ra, capacity, sizeof(int), 1, 1);
+  int verify_data[capacity]; // {1,2,3,4,5,6,7,8};
+  AudioBuffer * p_data = NULL;
+
+  for (unsigned int i = 0; i < capacity; ++i) {
+    verify_data[i] = i; // in case capacity change value
+    *(int *)ra.buffer_array[i].mData = i;
+    ASSERT_EQ(ra.buffer_array[i].mDataByteSize, sizeof(int));
+    ASSERT_EQ(ra.buffer_array[i].mNumberChannels, 1u);
+  }
+
+  /* Get store buffers*/
+  for (unsigned int i = 0; i < capacity; ++i) {
+    p_data = ring_array_get_free_buffer(&ra);
+    ASSERT_NE(p_data, nullptr);
+    ASSERT_EQ(*(int *)p_data->mData, verify_data[i]);
+  }
+  /*Now array is full extra store should give NULL*/
+  ASSERT_EQ(ring_array_get_free_buffer(&ra), nullptr);
+  /* Get fetch buffers*/
+  for (unsigned int i = 0; i < capacity; ++i) {
+    p_data = ring_array_get_data_buffer(&ra);
+    ASSERT_NE(p_data, nullptr);
+    ASSERT_EQ(*(int *)p_data->mData, verify_data[i]);
+  }
+  /*Now array is empty extra fetch should give NULL*/
+  ASSERT_EQ(ring_array_get_data_buffer(&ra), nullptr);
+
+  p_data = NULL;
+  /* Repeated store fetch should can go for ever*/
+  for (unsigned int i = 0; i < 2 * capacity; ++i) {
+    p_data = ring_array_get_free_buffer(&ra);
+    ASSERT_NE(p_data, nullptr);
+    ASSERT_EQ(ring_array_get_data_buffer(&ra), p_data);
+  }
+
+  p_data = NULL;
+  /* Verify/modify buffer data*/
+  for (unsigned int i = 0; i < capacity; ++i) {
+    p_data = ring_array_get_free_buffer(&ra);
+    ASSERT_NE(p_data, nullptr);
+    ASSERT_EQ(*((int *)p_data->mData), verify_data[i]);
+    (*((int *)p_data->mData))++; // Modify data
+  }
+  for (unsigned int i = 0; i < capacity; ++i) {
+    p_data = ring_array_get_data_buffer(&ra);
+    ASSERT_NE(p_data, nullptr);
+    ASSERT_EQ(*((int *)p_data->mData),
+              verify_data[i] + 1); // Verify modified data
+  }
+
+  ring_array_destroy(&ra);
+}
+#else
+TEST(cubeb, DISABLED_ring_array) {}
+#endif