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Diffstat (limited to 'zephyr/test/drivers/include/test_mocks.h')
| -rw-r--r-- | zephyr/test/drivers/include/test_mocks.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/zephyr/test/drivers/include/test_mocks.h b/zephyr/test/drivers/include/test_mocks.h new file mode 100644 index 0000000000..fe63eea0d3 --- /dev/null +++ b/zephyr/test/drivers/include/test_mocks.h @@ -0,0 +1,80 @@ +/* Copyright 2021 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include <fff.h> + +/* + * Convenience macros + */ + +/** + * @brief Helper macro for inspecting the argument history of a given + * fake. Counts number of times the fake was called with a given + * argument. + * @param FAKE - FFF-provided fake structure (no pointers). + * @param ARG_NUM - Zero-based index of the argument to compare. + * @param VAL - Expression the argument must equal. + * @return Returns the number of times a call was made to the fake + * where the argument `ARG_NUM` equals `VAL`. + */ +#define MOCK_COUNT_CALLS_WITH_ARG_VALUE(FAKE, ARG_NUM, VAL) \ + ({ \ + int count = 0; \ + for (int i = 0; i < (FAKE).call_count; i++) { \ + if ((FAKE).arg##ARG_NUM##_history[i] == (VAL)) { \ + count++; \ + } \ + } \ + count; \ + }) + +/** + * @brief Helper macro for asserting that a certain register write occurred. + * Used when wrapping an I2C emulator mock write function in FFF. Prints + * useful error messages when the assertion fails. + * @param FAKE - name of the fake whose arg history to insepct. Do not include + * '_fake' at the end. + * @param CALL_NUM - Index in to the call history that this write should have + * occurred at. Zero based. + * @param EXPECTED_REG - The register address that was supposed to be written. + * @param EXPECTED_VAL - The 8-bit value that was supposed to be written, or + * `MOCK_IGNORE_VALUE` to suppress this check. + */ +#define MOCK_ASSERT_I2C_WRITE(FAKE, CALL_NUM, EXPECTED_REG, EXPECTED_VAL) \ + do { \ + zassert_true((CALL_NUM) < FAKE##_fake.call_count, \ + "Call #%d did not occur (%d I2C writes total)", \ + (CALL_NUM), FAKE##_fake.call_count); \ + zassert_equal( \ + FAKE##_fake.arg1_history[(CALL_NUM)], (EXPECTED_REG), \ + "Expected I2C write #%d to register 0x%02x (" \ + #EXPECTED_REG ") but wrote to reg 0x%02x", \ + (CALL_NUM), (EXPECTED_REG), \ + FAKE##_fake.arg1_history[(CALL_NUM)]); \ + if (EXPECTED_VAL != MOCK_IGNORE_VALUE) { \ + zassert_equal( \ + FAKE##_fake.arg2_history[(CALL_NUM)], \ + (EXPECTED_VAL), \ + "Expected I2C write #%d to register 0x%02x (" \ + #EXPECTED_REG ") to write 0x%02x (" \ + #EXPECTED_VAL ") but wrote 0x%02x", \ + (CALL_NUM), (EXPECTED_REG), (EXPECTED_VAL), \ + FAKE##_fake.arg2_history[(CALL_NUM)]); \ + } \ + } while (0) + +/** @brief Value to pass to MOCK_ASSERT_I2C_WRITE to ignore the actual value + * written. + */ +#define MOCK_IGNORE_VALUE (-1) + +/* + * Mock declarations + */ + +/* Mocks for common/init_rom.c */ +DECLARE_FAKE_VALUE_FUNC(const void *, init_rom_map, const void *, int); +DECLARE_FAKE_VOID_FUNC(init_rom_unmap, const void *, int); +DECLARE_FAKE_VALUE_FUNC(int, init_rom_copy, int, int, int); |