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@ -22,53 +22,55 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#include <cgreen/cgreen.h>
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#include "serial_link/protocol/triple_buffered_object.c"
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#include "gtest/gtest.h"
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extern "C" {
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#include "serial_link/protocol/triple_buffered_object.h"
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}
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typedef struct {
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struct test_object{
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uint8_t state;
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uint32_t buffer[3];
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}test_object_t;
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};
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test_object_t test_object;
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test_object test_object;
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Describe(TripleBufferedObject);
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BeforeEach(TripleBufferedObject) {
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class TripleBufferedObject : public testing::Test {
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public:
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TripleBufferedObject() {
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triple_buffer_init((triple_buffer_object_t*)&test_object);
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}
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AfterEach(TripleBufferedObject) {}
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};
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Ensure(TripleBufferedObject, writes_and_reads_object) {
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TEST_F(TripleBufferedObject, writes_and_reads_object) {
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*triple_buffer_begin_write(&test_object) = 0x3456ABCC;
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triple_buffer_end_write(&test_object);
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assert_that(*triple_buffer_read(&test_object), is_equal_to(0x3456ABCC));
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EXPECT_EQ(*triple_buffer_read(&test_object), 0x3456ABCC);
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}
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Ensure(TripleBufferedObject, does_not_read_empty) {
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assert_that(triple_buffer_read(&test_object), is_equal_to(NULL));
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TEST_F(TripleBufferedObject, does_not_read_empty) {
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EXPECT_EQ(triple_buffer_read(&test_object), nullptr);
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}
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Ensure(TripleBufferedObject, writes_twice_and_reads_object) {
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TEST_F(TripleBufferedObject, writes_twice_and_reads_object) {
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*triple_buffer_begin_write(&test_object) = 0x3456ABCC;
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triple_buffer_end_write(&test_object);
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*triple_buffer_begin_write(&test_object) = 0x44778899;
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triple_buffer_end_write(&test_object);
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assert_that(*triple_buffer_read(&test_object), is_equal_to(0x44778899));
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EXPECT_EQ(*triple_buffer_read(&test_object), 0x44778899);
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}
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Ensure(TripleBufferedObject, performs_another_write_in_the_middle_of_read) {
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TEST_F(TripleBufferedObject, performs_another_write_in_the_middle_of_read) {
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*triple_buffer_begin_write(&test_object) = 1;
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triple_buffer_end_write(&test_object);
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uint32_t* read = triple_buffer_read(&test_object);
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*triple_buffer_begin_write(&test_object) = 2;
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triple_buffer_end_write(&test_object);
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assert_that(*read, is_equal_to(1));
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assert_that(*triple_buffer_read(&test_object), is_equal_to(2));
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assert_that(triple_buffer_read(&test_object), is_equal_to(NULL));
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EXPECT_EQ(*read, 1);
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EXPECT_EQ(*triple_buffer_read(&test_object), 2);
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EXPECT_EQ(triple_buffer_read(&test_object), nullptr);
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}
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Ensure(TripleBufferedObject, performs_two_writes_in_the_middle_of_read) {
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TEST_F(TripleBufferedObject, performs_two_writes_in_the_middle_of_read) {
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*triple_buffer_begin_write(&test_object) = 1;
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triple_buffer_end_write(&test_object);
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uint32_t* read = triple_buffer_read(&test_object);
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@ -76,7 +78,7 @@ Ensure(TripleBufferedObject, performs_two_writes_in_the_middle_of_read) {
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triple_buffer_end_write(&test_object);
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*triple_buffer_begin_write(&test_object) = 3;
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triple_buffer_end_write(&test_object);
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assert_that(*read, is_equal_to(1));
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assert_that(*triple_buffer_read(&test_object), is_equal_to(3));
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assert_that(triple_buffer_read(&test_object), is_equal_to(NULL));
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EXPECT_EQ(*read, 1);
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EXPECT_EQ(*triple_buffer_read(&test_object), 3);
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EXPECT_EQ(triple_buffer_read(&test_object), nullptr);
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}
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