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69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
#include <gtest/gtest.h>
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#include "esphome/components/light/light_effect.h"
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#include "esphome/components/light/light_output.h"
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#include "esphome/components/light/light_state.h"
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namespace esphome::light::testing {
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namespace {
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class BrightnessOutput : public LightOutput {
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public:
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LightTraits get_traits() override {
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LightTraits traits;
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traits.set_supported_color_modes({ColorMode::BRIGHTNESS});
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return traits;
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}
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void write_state(LightState *state) override {}
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};
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class NoopEffect : public LightEffect {
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public:
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using LightEffect::LightEffect;
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void apply() override {}
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};
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// start_effect_() is where the uint32_t index is narrowed to the stored uint16_t.
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class TestableLightState : public LightState {
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public:
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using LightState::LightState;
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using LightState::start_effect_;
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};
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} // namespace
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// add_effects() is public, so an external component can exceed the codegen cap on effect count;
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// an index the uint16_t can't hold must be ignored rather than wrap onto another effect.
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TEST(LightStateEffect, IndexAboveUint16IsIgnoredAndKeepsTheActiveEffect) {
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BrightnessOutput output;
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TestableLightState state(&output);
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NoopEffect effect("Noop");
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state.add_effects({&effect});
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state.start_effect_(1);
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ASSERT_EQ(state.get_current_effect_index(), 1u);
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state.start_effect_(0x10000u); // unchecked narrowing wraps this to 0, which stops the effect
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EXPECT_EQ(state.get_current_effect_index(), 1u);
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}
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// get_gamma_correct() reads the gamma codegen stores after the lookup table, rounded to two decimals.
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TEST(LightStateGamma, ReadsTheGammaStoredWithTheTable) {
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static constexpr GammaTable TABLE{{}, 280};
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BrightnessOutput output;
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LightState state(&output);
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state.set_gamma_table(&TABLE);
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EXPECT_FLOAT_EQ(state.get_gamma_correct(), 2.8f);
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EXPECT_EQ(state.get_gamma_table(), TABLE.lut);
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}
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TEST(LightStateGamma, IsZeroWithoutATable) {
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BrightnessOutput output;
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LightState state(&output);
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EXPECT_FLOAT_EQ(state.get_gamma_correct(), 0.0f);
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EXPECT_EQ(state.get_gamma_table(), nullptr);
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}
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} // namespace esphome::light::testing
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