diff options
Diffstat (limited to 'quantum/serial_link/tests/triple_buffered_object_tests.c')
-rw-r--r-- | quantum/serial_link/tests/triple_buffered_object_tests.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/quantum/serial_link/tests/triple_buffered_object_tests.c b/quantum/serial_link/tests/triple_buffered_object_tests.c new file mode 100644 index 0000000000..6f7c82b468 --- /dev/null +++ b/quantum/serial_link/tests/triple_buffered_object_tests.c @@ -0,0 +1,82 @@ +/* +The MIT License (MIT) + +Copyright (c) 2016 Fred Sundvik + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ + +#include <cgreen/cgreen.h> +#include "serial_link/protocol/triple_buffered_object.c" + +typedef struct { + uint8_t state; + uint32_t buffer[3]; +}test_object_t; + +test_object_t test_object; + +Describe(TripleBufferedObject); +BeforeEach(TripleBufferedObject) { + triple_buffer_init((triple_buffer_object_t*)&test_object); +} +AfterEach(TripleBufferedObject) {} + + +Ensure(TripleBufferedObject, writes_and_reads_object) { + *triple_buffer_begin_write(&test_object) = 0x3456ABCC; + triple_buffer_end_write(&test_object); + assert_that(*triple_buffer_read(&test_object), is_equal_to(0x3456ABCC)); +} + +Ensure(TripleBufferedObject, does_not_read_empty) { + assert_that(triple_buffer_read(&test_object), is_equal_to(NULL)); +} + +Ensure(TripleBufferedObject, writes_twice_and_reads_object) { + *triple_buffer_begin_write(&test_object) = 0x3456ABCC; + triple_buffer_end_write(&test_object); + *triple_buffer_begin_write(&test_object) = 0x44778899; + triple_buffer_end_write(&test_object); + assert_that(*triple_buffer_read(&test_object), is_equal_to(0x44778899)); +} + +Ensure(TripleBufferedObject, performs_another_write_in_the_middle_of_read) { + *triple_buffer_begin_write(&test_object) = 1; + triple_buffer_end_write(&test_object); + uint32_t* read = triple_buffer_read(&test_object); + *triple_buffer_begin_write(&test_object) = 2; + triple_buffer_end_write(&test_object); + assert_that(*read, is_equal_to(1)); + assert_that(*triple_buffer_read(&test_object), is_equal_to(2)); + assert_that(triple_buffer_read(&test_object), is_equal_to(NULL)); +} + +Ensure(TripleBufferedObject, performs_two_writes_in_the_middle_of_read) { + *triple_buffer_begin_write(&test_object) = 1; + triple_buffer_end_write(&test_object); + uint32_t* read = triple_buffer_read(&test_object); + *triple_buffer_begin_write(&test_object) = 2; + triple_buffer_end_write(&test_object); + *triple_buffer_begin_write(&test_object) = 3; + triple_buffer_end_write(&test_object); + assert_that(*read, is_equal_to(1)); + assert_that(*triple_buffer_read(&test_object), is_equal_to(3)); + assert_that(triple_buffer_read(&test_object), is_equal_to(NULL)); +} |