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54 lines
1.6 KiB
54 lines
1.6 KiB
3 years ago
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#include "gpio-expander.hpp"
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#include "i2c.hpp"
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#include "i2c_fixture.hpp"
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#include "catch2/catch.hpp"
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namespace drivers {
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TEST_CASE("gpio expander", "[integration]") {
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I2CFixture i2c;
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GpioExpander expander;
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SECTION("with() writes when ") {
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// Initial value.
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expander.Read();
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REQUIRE(expander.get_input(GpioExpander::GPIO_1) == true);
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expander.with(
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[&](auto& gpio) { gpio.set_pin(GpioExpander::GPIO_1, false); });
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expander.Read();
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REQUIRE(expander.get_input(GpioExpander::GPIO_1) == false);
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}
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SECTION("setting individual pins") {
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expander.set_pin(GpioExpander::GPIO_1, true);
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expander.set_pin(GpioExpander::GPIO_2, false);
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expander.set_pin(GpioExpander::GPIO_3, false);
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expander.set_pin(GpioExpander::GPIO_4, true);
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expander.Write();
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expander.Read();
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REQUIRE(expander.get_input(GpioExpander::GPIO_1) == true);
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REQUIRE(expander.get_input(GpioExpander::GPIO_2) == false);
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REQUIRE(expander.get_input(GpioExpander::GPIO_3) == false);
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REQUIRE(expander.get_input(GpioExpander::GPIO_4) == true);
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expander.set_pin(GpioExpander::GPIO_1, false);
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expander.set_pin(GpioExpander::GPIO_2, true);
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expander.set_pin(GpioExpander::GPIO_3, true);
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expander.set_pin(GpioExpander::GPIO_4, false);
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expander.Write();
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expander.Read();
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REQUIRE(expander.get_input(GpioExpander::GPIO_1) == false);
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REQUIRE(expander.get_input(GpioExpander::GPIO_2) == true);
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REQUIRE(expander.get_input(GpioExpander::GPIO_3) == true);
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REQUIRE(expander.get_input(GpioExpander::GPIO_4) == false);
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}
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}
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} // namespace drivers
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