Tactility/TactilityKernel/tests/source/driver_test.cpp

#include "doctest.h"

#include <tactility/driver.h>

TEST_CASE("driver_construct and driver_destruct should set and unset the correct fields") {
    Driver driver = { 0 };

    CHECK_EQ(driver_construct(&driver), ERROR_NONE);
    CHECK_EQ(driver_add(&driver), ERROR_NONE);
    CHECK_NE(driver.internal, nullptr);
    CHECK_EQ(driver_remove(&driver), ERROR_NONE);
    CHECK_EQ(driver_destruct(&driver), ERROR_NONE);
    CHECK_EQ(driver.internal, nullptr);
}

TEST_CASE("a driver without a module can be added, removed and destructed") {
    Driver driver = { 0 };

    CHECK_EQ(driver_construct(&driver), ERROR_NONE);
    CHECK_EQ(driver_add(&driver), ERROR_NONE);
    CHECK_EQ(driver_remove(&driver), ERROR_NONE);
    CHECK_EQ(driver_destruct(&driver), ERROR_NONE);
    CHECK_EQ(driver.internal, nullptr);
}

TEST_CASE("a constructed driver should have no owner") {
    Driver driver = { 0 };

    CHECK_EQ(driver_construct(&driver), ERROR_NONE);
    CHECK_EQ(driver_get_owner(&driver), nullptr);
    CHECK_EQ(driver_destruct(&driver), ERROR_NONE);
}

TEST_CASE("driver_is_compatible should return true if a compatible value is found") {
    const char* compatible[] = { "test_compatible", nullptr };
    Driver driver = {
        .name = "test_driver",
        .compatible = compatible,
        .start_device = nullptr,
        .stop_device = nullptr,
        .api = nullptr,
        .device_type = nullptr,
        .internal = nullptr
    };
    CHECK_EQ(driver_is_compatible(&driver, "test_compatible"), true);
    CHECK_EQ(driver_is_compatible(&driver, "nope"), false);
    CHECK_EQ(driver_is_compatible(&driver, nullptr), false);
}

TEST_CASE("driver_find should only find a compatible driver when the driver was constructed") {
    const char* compatible[] = { "test_compatible", nullptr };
    Driver driver = {
        .name = "test_driver",
        .compatible = compatible,
        .start_device = nullptr,
        .stop_device = nullptr,
        .api = nullptr,
        .device_type = nullptr,
        .internal = nullptr
    };

    Driver* found_driver = driver_find_compatible("test_compatible");
    CHECK_EQ(found_driver, nullptr);

    CHECK_EQ(driver_construct(&driver), ERROR_NONE);
    CHECK_EQ(driver_add(&driver), ERROR_NONE);

    found_driver = driver_find_compatible("test_compatible");
    CHECK_EQ(found_driver, &driver);

    CHECK_EQ(driver_remove(&driver), ERROR_NONE);
    CHECK_EQ(driver_destruct(&driver), ERROR_NONE);

    found_driver = driver_find_compatible("test_compatible");
    CHECK_EQ(found_driver, nullptr);
}