97 lines
3.7 KiB
C++
97 lines
3.7 KiB
C++
#include <mbgl/test/util.hpp>
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#include <mbgl/style/properties.hpp>
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#include <mbgl/style/expression/dsl.hpp>
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#include <mbgl/renderer/property_evaluator.hpp>
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#include <mbgl/renderer/data_driven_property_evaluator.hpp>
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using namespace mbgl;
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using namespace mbgl::style;
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using namespace std::literals::chrono_literals;
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float evaluate(Transitioning<PropertyValue<float>>& property, Duration delta = Duration::zero()) {
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ZoomHistory zoomHistory;
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zoomHistory.update(0, TimePoint::min() + delta);
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PropertyEvaluationParameters parameters{zoomHistory, TimePoint::min() + delta, Duration::zero()};
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PropertyEvaluator<float> evaluator{parameters, 0.0f};
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return property.evaluate(evaluator, parameters.now);
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}
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PossiblyEvaluatedPropertyValue<float> evaluateDataExpression(Transitioning<PropertyValue<float>>& property,
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Duration delta = Duration::zero()) {
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ZoomHistory zoomHistory;
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zoomHistory.update(0, TimePoint::min() + delta);
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PropertyEvaluationParameters parameters{zoomHistory, TimePoint::min() + delta, Duration::zero()};
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DataDrivenPropertyEvaluator<float> evaluator{parameters, 0.0f};
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return property.evaluate(evaluator, parameters.now);
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}
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TEST(TransitioningPropertyValue, EvaluateDefaultValue) {
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Transitioning<PropertyValue<float>> property;
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ASSERT_EQ(0.0f, evaluate(property));
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}
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TEST(TransitioningPropertyValue, EvaluateUntransitionedConstant) {
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Transitioning<PropertyValue<float>> property{
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PropertyValue<float>(1.0f), Transitioning<PropertyValue<float>>(), TransitionOptions(), TimePoint::min()};
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ASSERT_EQ(1.0f, evaluate(property));
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}
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TEST(TransitioningPropertyValue, EvaluateTransitionedConstantWithoutDelay) {
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TransitionOptions transition;
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transition.duration = {1000ms};
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Transitioning<PropertyValue<float>> t0{
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PropertyValue<float>(0.0f), Transitioning<PropertyValue<float>>(), TransitionOptions(), TimePoint::min()};
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Transitioning<PropertyValue<float>> t1{PropertyValue<float>(1.0f), t0, transition, TimePoint::min()};
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ASSERT_FLOAT_EQ(0.0f, evaluate(t1, 0ms));
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ASSERT_FLOAT_EQ(0.823099f, evaluate(t1, 500ms));
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ASSERT_FLOAT_EQ(1.0f, evaluate(t1, 1500ms));
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}
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TEST(TransitioningPropertyValue, EvaluateTransitionedConstantWithDelay) {
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TransitionOptions transition;
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transition.delay = {1000ms};
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transition.duration = {1000ms};
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Transitioning<PropertyValue<float>> t0{
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PropertyValue<float>(0.0f), Transitioning<PropertyValue<float>>(), TransitionOptions(), TimePoint::min()};
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Transitioning<PropertyValue<float>> t1{PropertyValue<float>(1.0f), t0, transition, TimePoint::min()};
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ASSERT_FLOAT_EQ(0.0f, evaluate(t1, 0ms));
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ASSERT_FLOAT_EQ(0.0f, evaluate(t1, 500ms));
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ASSERT_FLOAT_EQ(0.0f, evaluate(t1, 612ms));
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ASSERT_FLOAT_EQ(0.823099f, evaluate(t1, 1500ms));
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ASSERT_FLOAT_EQ(1.0f, evaluate(t1, 2500ms));
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}
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TEST(TransitioningDataDrivenPropertyValue, Evaluate) {
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TransitionOptions transition;
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transition.delay = {1000ms};
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transition.duration = {1000ms};
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Transitioning<PropertyValue<float>> t0{
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PropertyValue<float>(0.0f), Transitioning<PropertyValue<float>>(), TransitionOptions(), TimePoint::min()};
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using namespace mbgl::style::expression::dsl;
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PropertyExpression<float> expression(number(get("property_name")));
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Transitioning<PropertyValue<float>> t1{PropertyValue<float>(expression), t0, transition, TimePoint::min()};
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ASSERT_TRUE(evaluateDataExpression(t0, 0ms).isConstant());
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ASSERT_FALSE(evaluateDataExpression(t1, 0ms).isConstant())
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<< "A paint property transition to a data-driven evaluates immediately "
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"to the final value (see "
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"https://github.com/mapbox/mapbox-gl-native/issues/8237).";
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}
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