99 lines
2.2 KiB
C
99 lines
2.2 KiB
C
/* Copyright 2014 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Test the logic of battery_get_params() to be sure it sets the correct flags
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* when i2c reads fail.
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*/
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#include "battery.h"
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#include "battery_smart.h"
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#include "common.h"
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#include "console.h"
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#include "i2c.h"
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#include "test_util.h"
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#include "util.h"
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/* Test state */
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static int fail_on_first, fail_on_last;
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static int read_count, write_count;
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struct batt_params batt;
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void battery_compensate_params(struct batt_params *batt)
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{
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}
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void board_battery_compensate_params(struct batt_params *batt)
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{
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}
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static void reset_and_fail_on(int first, int last)
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{
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/* We're not initializing the fake battery, so everything reads zero */
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memset(&batt, 0, sizeof(typeof(batt)));
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read_count = write_count = 0;
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fail_on_first = first;
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fail_on_last = last;
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}
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/* Mocked functions */
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int sb_read(int cmd, int *param)
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{
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read_count++;
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if (read_count >= fail_on_first && read_count <= fail_on_last)
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return EC_ERROR_UNKNOWN;
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return i2c_read16(I2C_PORT_BATTERY, BATTERY_ADDR_FLAGS,
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cmd, param);
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}
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int sb_write(int cmd, int param)
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{
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write_count++;
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return i2c_write16(I2C_PORT_BATTERY, BATTERY_ADDR_FLAGS,
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cmd, param);
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}
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/* Tests */
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static int test_param_failures(void)
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{
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int i, num_reads;
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/* No failures */
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reset_and_fail_on(0, 0);
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battery_get_params(&batt);
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TEST_ASSERT(batt.flags & BATT_FLAG_RESPONSIVE);
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TEST_ASSERT(!(batt.flags & BATT_FLAG_BAD_ANY));
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num_reads = read_count;
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/* Just a single failure */
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for (i = 1; i <= num_reads; i++) {
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reset_and_fail_on(i, i);
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battery_get_params(&batt);
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TEST_ASSERT(batt.flags & BATT_FLAG_BAD_ANY);
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TEST_ASSERT(batt.flags & BATT_FLAG_RESPONSIVE);
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}
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/* Once it fails, it keeps failing */
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for (i = 1; i <= num_reads; i++) {
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reset_and_fail_on(i, num_reads);
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battery_get_params(&batt);
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TEST_ASSERT(batt.flags & BATT_FLAG_BAD_ANY);
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if (i == 1)
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/* If every read fails, it's not responsive */
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TEST_ASSERT(!(batt.flags & BATT_FLAG_RESPONSIVE));
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else
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TEST_ASSERT(batt.flags & BATT_FLAG_RESPONSIVE);
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}
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return EC_SUCCESS;
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}
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void run_test(int argc, char **argv)
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{
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RUN_TEST(test_param_failures);
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test_print_result();
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}
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