diff options
author | Stephen Christie <undersampled@live.com> | 2016-09-19 18:05:58 -0400 |
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committer | Stephen Christie <undersampled@live.com> | 2016-09-19 18:05:58 -0400 |
commit | 57a6828a7a73d7b7c3dd9693e04d6873e2e3d1c2 (patch) | |
tree | bdabbdbdd9fd6de500728721d1865058468871e3 /quantum/serial_link/tests/triple_buffered_object_tests.cpp | |
parent | bf2b260429dbc015d49d005065a37441c8f15753 (diff) | |
parent | 5f9c2f63ffb2c58db73e67442134be58bfe2c129 (diff) |
Merge branch 'master' of http://github.com/jackhumbert/qmk_firmware
Diffstat (limited to 'quantum/serial_link/tests/triple_buffered_object_tests.cpp')
-rw-r--r-- | quantum/serial_link/tests/triple_buffered_object_tests.cpp | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/quantum/serial_link/tests/triple_buffered_object_tests.cpp b/quantum/serial_link/tests/triple_buffered_object_tests.cpp new file mode 100644 index 0000000000..7724bbee9c --- /dev/null +++ b/quantum/serial_link/tests/triple_buffered_object_tests.cpp @@ -0,0 +1,84 @@ +/* +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 "gtest/gtest.h" +extern "C" { +#include "serial_link/protocol/triple_buffered_object.h" +} + +struct test_object{ + uint8_t state; + uint32_t buffer[3]; +}; + +test_object test_object; + +class TripleBufferedObject : public testing::Test { +public: + TripleBufferedObject() { + triple_buffer_init((triple_buffer_object_t*)&test_object); + } +}; + +TEST_F(TripleBufferedObject, writes_and_reads_object) { + *triple_buffer_begin_write(&test_object) = 0x3456ABCC; + triple_buffer_end_write(&test_object); + EXPECT_EQ(*triple_buffer_read(&test_object), 0x3456ABCC); +} + +TEST_F(TripleBufferedObject, does_not_read_empty) { + EXPECT_EQ(triple_buffer_read(&test_object), nullptr); +} + +TEST_F(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); + EXPECT_EQ(*triple_buffer_read(&test_object), 0x44778899); +} + +TEST_F(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); + EXPECT_EQ(*read, 1); + EXPECT_EQ(*triple_buffer_read(&test_object), 2); + EXPECT_EQ(triple_buffer_read(&test_object), nullptr); +} + +TEST_F(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); + EXPECT_EQ(*read, 1); + EXPECT_EQ(*triple_buffer_read(&test_object), 3); + EXPECT_EQ(triple_buffer_read(&test_object), nullptr); +} |