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python-v2.4.0
libgpiod/tests/tests-line-info.c
Bartosz Golaszewski e60e38375c tests: split out reusable test code into a local static library 
In order to allow the upcoming GLib and DBus bindings to reuse the test
code, let's put all common elements into reusable libtool objects and
export the relevant symbols in internal headers.

Tested-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Link: https://lore.kernel.org/r/20240812-dbus-v5-1-ead288509217@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-08-13 10:38:40 +02:00

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// SPDX-License-Identifier: GPL-2.0-or-later
// SPDX-FileCopyrightText: 2017-2021 Bartosz Golaszewski <bartekgola@gmail.com>
#include <errno.h>
#include <glib.h>
#include <gpiod.h>
#include <gpiod-test.h>
#include <gpiod-test-common.h>
#include <gpiosim-glib.h>
#include "helpers.h"
#define GPIOD_TEST_GROUP "line-info"
GPIOD_TEST_CASE(get_line_info_good)
{
g_autoptr(GPIOSimChip) sim = g_gpiosim_chip_new("num-lines", 8, NULL);
g_autoptr(struct_gpiod_chip) chip = NULL;
g_autoptr(struct_gpiod_line_info) info = NULL;
chip = gpiod_test_open_chip_or_fail(g_gpiosim_chip_get_dev_path(sim));
info = gpiod_test_chip_get_line_info_or_fail(chip, 3);
g_assert_cmpuint(gpiod_line_info_get_offset(info), ==, 3);
}
GPIOD_TEST_CASE(get_line_info_offset_out_of_range)
{
g_autoptr(GPIOSimChip) sim = g_gpiosim_chip_new("num-lines", 8, NULL);
g_autoptr(struct_gpiod_chip) chip = NULL;
g_autoptr(struct_gpiod_line_info) info = NULL;
chip = gpiod_test_open_chip_or_fail(g_gpiosim_chip_get_dev_path(sim));
info = gpiod_chip_get_line_info(chip, 8);
g_assert_null(info);
gpiod_test_expect_errno(EINVAL);
}
GPIOD_TEST_CASE(line_info_basic_properties)
{
static const GPIOSimLineName names[] = {
{ .offset = 1, .name = "foo", },
{ .offset = 2, .name = "bar", },
{ .offset = 4, .name = "baz", },
{ .offset = 5, .name = "xyz", },
{ }
};
static const GPIOSimHog hogs[] = {
{
.offset = 3,
.name = "hog3",
.direction = G_GPIOSIM_DIRECTION_OUTPUT_HIGH,
},
{
.offset = 4,
.name = "hog4",
.direction = G_GPIOSIM_DIRECTION_OUTPUT_LOW,
},
{ }
};
g_autoptr(GPIOSimChip) sim = NULL;
g_autoptr(struct_gpiod_chip) chip = NULL;
g_autoptr(struct_gpiod_line_info) info4 = NULL;
g_autoptr(struct_gpiod_line_info) info6 = NULL;
g_autoptr(GVariant) vnames = g_gpiosim_package_line_names(names);
g_autoptr(GVariant) vhogs = g_gpiosim_package_hogs(hogs);
sim = g_gpiosim_chip_new(
"num-lines", 8,
"line-names", vnames,
"hogs", vhogs,
NULL);
chip = gpiod_test_open_chip_or_fail(g_gpiosim_chip_get_dev_path(sim));
info4 = gpiod_test_chip_get_line_info_or_fail(chip, 4);
info6 = gpiod_test_chip_get_line_info_or_fail(chip, 6);
g_assert_cmpuint(gpiod_line_info_get_offset(info4), ==, 4);
g_assert_cmpstr(gpiod_line_info_get_name(info4), ==, "baz");
g_assert_cmpstr(gpiod_line_info_get_consumer(info4), ==, "hog4");
g_assert_true(gpiod_line_info_is_used(info4));
g_assert_cmpint(gpiod_line_info_get_direction(info4), ==,
GPIOD_LINE_DIRECTION_OUTPUT);
g_assert_cmpint(gpiod_line_info_get_edge_detection(info4), ==,
GPIOD_LINE_EDGE_NONE);
g_assert_false(gpiod_line_info_is_active_low(info4));
g_assert_cmpint(gpiod_line_info_get_bias(info4), ==,
GPIOD_LINE_BIAS_UNKNOWN);
g_assert_cmpint(gpiod_line_info_get_drive(info4), ==,
GPIOD_LINE_DRIVE_PUSH_PULL);
g_assert_cmpint(gpiod_line_info_get_event_clock(info4), ==,
GPIOD_LINE_CLOCK_MONOTONIC);
g_assert_false(gpiod_line_info_is_debounced(info4));
g_assert_cmpuint(gpiod_line_info_get_debounce_period_us(info4), ==, 0);
}
GPIOD_TEST_CASE(copy_line_info)
{
g_autoptr(GPIOSimChip) sim = g_gpiosim_chip_new("num-lines", 8, NULL);
g_autoptr(struct_gpiod_chip) chip = NULL;
g_autoptr(struct_gpiod_line_info) info = NULL;
g_autoptr(struct_gpiod_line_info) copy = NULL;
chip = gpiod_test_open_chip_or_fail(g_gpiosim_chip_get_dev_path(sim));
info = gpiod_test_chip_get_line_info_or_fail(chip, 3);
copy = gpiod_line_info_copy(info);
g_assert_nonnull(copy);
g_assert_true(info != copy);
g_assert_cmpuint(gpiod_line_info_get_offset(info), ==,
gpiod_line_info_get_offset(copy));
}
GPIOD_TEST_CASE(direction_settings)
{
g_autoptr(GPIOSimChip) sim = g_gpiosim_chip_new("num-lines", 8, NULL);
g_autoptr(struct_gpiod_chip) chip = NULL;
g_autoptr(struct_gpiod_line_config) line_cfg = NULL;
g_autoptr(struct_gpiod_line_settings) settings = NULL;
g_autoptr(struct_gpiod_line_request) request = NULL;
g_autoptr(struct_gpiod_line_info) info0 = NULL;
g_autoptr(struct_gpiod_line_info) info1 = NULL;
g_autoptr(struct_gpiod_line_info) info2 = NULL;
guint offset;
chip = gpiod_test_open_chip_or_fail(g_gpiosim_chip_get_dev_path(sim));
settings = gpiod_test_create_line_settings_or_fail();
line_cfg = gpiod_test_create_line_config_or_fail();
gpiod_line_settings_set_direction(settings,
GPIOD_LINE_DIRECTION_OUTPUT);
offset = 0;
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
gpiod_line_settings_set_direction(settings, GPIOD_LINE_DIRECTION_INPUT);
offset = 1;
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
gpiod_line_settings_set_direction(settings, GPIOD_LINE_DIRECTION_AS_IS);
offset = 2;
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
request = gpiod_test_chip_request_lines_or_fail(chip, NULL, line_cfg);
info0 = gpiod_test_chip_get_line_info_or_fail(chip, 0);
info1 = gpiod_test_chip_get_line_info_or_fail(chip, 1);
info2 = gpiod_test_chip_get_line_info_or_fail(chip, 2);
g_assert_cmpint(gpiod_line_info_get_direction(info0), ==,
GPIOD_LINE_DIRECTION_OUTPUT);
g_assert_cmpint(gpiod_line_info_get_direction(info1), ==,
GPIOD_LINE_DIRECTION_INPUT);
g_assert_cmpint(gpiod_line_info_get_direction(info2), ==,
GPIOD_LINE_DIRECTION_INPUT);
}
GPIOD_TEST_CASE(active_high)
{
static const guint offset = 5;
g_autoptr(GPIOSimChip) sim = g_gpiosim_chip_new("num-lines", 8, NULL);
g_autoptr(struct_gpiod_chip) chip = NULL;
g_autoptr(struct_gpiod_line_config) line_cfg = NULL;
g_autoptr(struct_gpiod_line_settings) settings = NULL;
g_autoptr(struct_gpiod_line_request) request = NULL;
g_autoptr(struct_gpiod_line_info) info = NULL;
chip = gpiod_test_open_chip_or_fail(g_gpiosim_chip_get_dev_path(sim));
settings = gpiod_test_create_line_settings_or_fail();
line_cfg = gpiod_test_create_line_config_or_fail();
gpiod_line_settings_set_active_low(settings, true);
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset,
1, settings);
request = gpiod_test_chip_request_lines_or_fail(chip, NULL, line_cfg);
info = gpiod_test_chip_get_line_info_or_fail(chip, 5);
g_assert_true(gpiod_line_info_is_active_low(info));
}
GPIOD_TEST_CASE(edge_detection_settings)
{
g_autoptr(GPIOSimChip) sim = g_gpiosim_chip_new("num-lines", 8, NULL);
g_autoptr(struct_gpiod_chip) chip = NULL;
g_autoptr(struct_gpiod_line_config) line_cfg = NULL;
g_autoptr(struct_gpiod_line_request) request = NULL;
g_autoptr(struct_gpiod_line_settings) settings = NULL;
g_autoptr(struct_gpiod_line_info) info0 = NULL;
g_autoptr(struct_gpiod_line_info) info1 = NULL;
g_autoptr(struct_gpiod_line_info) info2 = NULL;
g_autoptr(struct_gpiod_line_info) info3 = NULL;
guint offset;
chip = gpiod_test_open_chip_or_fail(g_gpiosim_chip_get_dev_path(sim));
line_cfg = gpiod_test_create_line_config_or_fail();
settings = gpiod_test_create_line_settings_or_fail();
gpiod_line_settings_set_edge_detection(settings, GPIOD_LINE_EDGE_NONE);
offset = 0;
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
gpiod_line_settings_set_edge_detection(settings,
GPIOD_LINE_EDGE_RISING);
offset = 1;
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
gpiod_line_settings_set_edge_detection(settings,
GPIOD_LINE_EDGE_FALLING);
offset = 2;
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
gpiod_line_settings_set_edge_detection(settings, GPIOD_LINE_EDGE_BOTH);
offset = 3;
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
request = gpiod_test_chip_request_lines_or_fail(chip, NULL, line_cfg);
info0 = gpiod_test_chip_get_line_info_or_fail(chip, 0);
info1 = gpiod_test_chip_get_line_info_or_fail(chip, 1);
info2 = gpiod_test_chip_get_line_info_or_fail(chip, 2);
info3 = gpiod_test_chip_get_line_info_or_fail(chip, 3);
g_assert_cmpint(gpiod_line_info_get_edge_detection(info0), ==,
GPIOD_LINE_EDGE_NONE);
g_assert_cmpint(gpiod_line_info_get_edge_detection(info1), ==,
GPIOD_LINE_EDGE_RISING);
g_assert_cmpint(gpiod_line_info_get_edge_detection(info2), ==,
GPIOD_LINE_EDGE_FALLING);
g_assert_cmpint(gpiod_line_info_get_edge_detection(info3), ==,
GPIOD_LINE_EDGE_BOTH);
}
GPIOD_TEST_CASE(bias_settings)
{
g_autoptr(GPIOSimChip) sim = g_gpiosim_chip_new("num-lines", 8, NULL);
g_autoptr(struct_gpiod_chip) chip = NULL;
g_autoptr(struct_gpiod_line_config) line_cfg = NULL;
g_autoptr(struct_gpiod_line_settings) settings = NULL;
g_autoptr(struct_gpiod_line_request) request = NULL;
g_autoptr(struct_gpiod_line_info) info0 = NULL;
g_autoptr(struct_gpiod_line_info) info1 = NULL;
g_autoptr(struct_gpiod_line_info) info2 = NULL;
g_autoptr(struct_gpiod_line_info) info3 = NULL;
guint offset;
chip = gpiod_test_open_chip_or_fail(g_gpiosim_chip_get_dev_path(sim));
settings = gpiod_test_create_line_settings_or_fail();
line_cfg = gpiod_test_create_line_config_or_fail();
gpiod_line_settings_set_direction(settings,
GPIOD_LINE_DIRECTION_OUTPUT);
offset = 0;
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
gpiod_line_settings_set_bias(settings, GPIOD_LINE_BIAS_DISABLED);
offset = 1;
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
gpiod_line_settings_set_bias(settings, GPIOD_LINE_BIAS_PULL_DOWN);
offset = 2;
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
gpiod_line_settings_set_bias(settings, GPIOD_LINE_BIAS_PULL_UP);
offset = 3;
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
request = gpiod_test_chip_request_lines_or_fail(chip, NULL, line_cfg);
info0 = gpiod_test_chip_get_line_info_or_fail(chip, 0);
info1 = gpiod_test_chip_get_line_info_or_fail(chip, 1);
info2 = gpiod_test_chip_get_line_info_or_fail(chip, 2);
info3 = gpiod_test_chip_get_line_info_or_fail(chip, 3);
g_assert_cmpint(gpiod_line_info_get_bias(info0), ==,
GPIOD_LINE_BIAS_UNKNOWN);
g_assert_cmpint(gpiod_line_info_get_bias(info1), ==,
GPIOD_LINE_BIAS_DISABLED);
g_assert_cmpint(gpiod_line_info_get_bias(info2), ==,
GPIOD_LINE_BIAS_PULL_DOWN);
g_assert_cmpint(gpiod_line_info_get_bias(info3), ==,
GPIOD_LINE_BIAS_PULL_UP);
}
GPIOD_TEST_CASE(drive_settings)
{
g_autoptr(GPIOSimChip) sim = g_gpiosim_chip_new("num-lines", 8, NULL);
g_autoptr(struct_gpiod_chip) chip = NULL;
g_autoptr(struct_gpiod_line_config) line_cfg = NULL;
g_autoptr(struct_gpiod_line_settings) settings = NULL;
g_autoptr(struct_gpiod_line_request) request = NULL;
g_autoptr(struct_gpiod_line_info) info0 = NULL;
g_autoptr(struct_gpiod_line_info) info1 = NULL;
g_autoptr(struct_gpiod_line_info) info2 = NULL;
guint offset;
chip = gpiod_test_open_chip_or_fail(g_gpiosim_chip_get_dev_path(sim));
line_cfg = gpiod_test_create_line_config_or_fail();
settings = gpiod_test_create_line_settings_or_fail();
gpiod_line_settings_set_direction(settings,
GPIOD_LINE_DIRECTION_OUTPUT);
offset = 0;
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
gpiod_line_settings_set_drive(settings, GPIOD_LINE_DRIVE_OPEN_DRAIN);
offset = 1;
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
gpiod_line_settings_set_drive(settings, GPIOD_LINE_DRIVE_OPEN_SOURCE);
offset = 2;
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
request = gpiod_test_chip_request_lines_or_fail(chip, NULL, line_cfg);
info0 = gpiod_test_chip_get_line_info_or_fail(chip, 0);
info1 = gpiod_test_chip_get_line_info_or_fail(chip, 1);
info2 = gpiod_test_chip_get_line_info_or_fail(chip, 2);
g_assert_cmpint(gpiod_line_info_get_drive(info0), ==,
GPIOD_LINE_DRIVE_PUSH_PULL);
g_assert_cmpint(gpiod_line_info_get_drive(info1), ==,
GPIOD_LINE_DRIVE_OPEN_DRAIN);
g_assert_cmpint(gpiod_line_info_get_drive(info2), ==,
GPIOD_LINE_DRIVE_OPEN_SOURCE);
}
GPIOD_TEST_CASE(debounce_period)
{
static const guint offset = 5;
g_autoptr(GPIOSimChip) sim = g_gpiosim_chip_new("num-lines", 8, NULL);
g_autoptr(struct_gpiod_chip) chip = NULL;
g_autoptr(struct_gpiod_line_config) line_cfg = NULL;
g_autoptr(struct_gpiod_line_settings) settings = NULL;
g_autoptr(struct_gpiod_line_request) request = NULL;
g_autoptr(struct_gpiod_line_info) info = NULL;
chip = gpiod_test_open_chip_or_fail(g_gpiosim_chip_get_dev_path(sim));
line_cfg = gpiod_test_create_line_config_or_fail();
settings = gpiod_test_create_line_settings_or_fail();
gpiod_line_settings_set_edge_detection(settings, GPIOD_LINE_EDGE_BOTH);
gpiod_line_settings_set_debounce_period_us(settings, 1000);
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
request = gpiod_test_chip_request_lines_or_fail(chip, NULL, line_cfg);
info = gpiod_test_chip_get_line_info_or_fail(chip, 5);
g_assert_cmpuint(gpiod_line_info_get_debounce_period_us(info), ==,
1000);
}
GPIOD_TEST_CASE(event_clock)
{
g_autoptr(GPIOSimChip) sim = g_gpiosim_chip_new("num-lines", 8, NULL);
g_autoptr(struct_gpiod_chip) chip = NULL;
g_autoptr(struct_gpiod_line_config) line_cfg = NULL;
g_autoptr(struct_gpiod_line_settings) settings = NULL;
g_autoptr(struct_gpiod_line_request) request = NULL;
g_autoptr(struct_gpiod_line_info) info0 = NULL;
g_autoptr(struct_gpiod_line_info) info1 = NULL;
g_autoptr(struct_gpiod_line_info) info2 = NULL;
guint offset;
chip = gpiod_test_open_chip_or_fail(g_gpiosim_chip_get_dev_path(sim));
line_cfg = gpiod_test_create_line_config_or_fail();
settings = gpiod_test_create_line_settings_or_fail();
offset = 0;
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
gpiod_line_settings_set_event_clock(settings,
GPIOD_LINE_CLOCK_REALTIME);
offset = 1;
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
gpiod_line_settings_set_event_clock(settings,
GPIOD_LINE_CLOCK_HTE);
offset = 2;
gpiod_test_line_config_add_line_settings_or_fail(line_cfg, &offset, 1,
settings);
request = gpiod_chip_request_lines(chip, NULL, line_cfg);
if (!request && errno == EOPNOTSUPP) {
g_test_skip("HTE support not available");
return;
}
gpiod_test_return_if_failed();
info0 = gpiod_test_chip_get_line_info_or_fail(chip, 0);
info1 = gpiod_test_chip_get_line_info_or_fail(chip, 1);
info2 = gpiod_test_chip_get_line_info_or_fail(chip, 2);
g_assert_cmpint(gpiod_line_info_get_event_clock(info0), ==,
GPIOD_LINE_CLOCK_MONOTONIC);
g_assert_cmpint(gpiod_line_info_get_event_clock(info1), ==,
GPIOD_LINE_CLOCK_REALTIME);
g_assert_cmpint(gpiod_line_info_get_event_clock(info2), ==,
GPIOD_LINE_CLOCK_HTE);
}
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