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Diffstat (limited to 'test/style/property_expression.test.cpp')
-rw-r--r-- | test/style/property_expression.test.cpp | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/test/style/property_expression.test.cpp b/test/style/property_expression.test.cpp new file mode 100644 index 0000000000..e4ee5f115f --- /dev/null +++ b/test/style/property_expression.test.cpp @@ -0,0 +1,123 @@ +#include <mbgl/test/util.hpp> +#include <mbgl/test/stub_geometry_tile_feature.hpp> + +#include <mbgl/style/property_expression.hpp> +#include <mbgl/renderer/property_evaluator.hpp> +#include <mbgl/renderer/property_evaluation_parameters.hpp> +#include <mbgl/style/expression/dsl.hpp> + +using namespace mbgl; +using namespace mbgl::style; +using namespace mbgl::style::expression::dsl; + +using namespace std::string_literals; + +static StubGeometryTileFeature oneInteger { + PropertyMap {{ "property", uint64_t(1) }} +}; + +static StubGeometryTileFeature oneDouble { + PropertyMap {{ "property", 1.0 }} +}; + +static StubGeometryTileFeature oneString { + PropertyMap {{ "property", "1"s }} +}; + +float evaluate(PropertyValue<float> value, float zoom) { + return value.evaluate(PropertyEvaluator<float>(PropertyEvaluationParameters(zoom), 0)); +} + +TEST(PropertyExpression, Constant) { + EXPECT_EQ(2.0f, evaluate(PropertyValue<float>(2.0), 0)); + EXPECT_EQ(3.8f, evaluate(PropertyValue<float>(3.8), 0)); + EXPECT_EQ(22.0f, evaluate(PropertyValue<float>(22.0), 0)); + EXPECT_EQ(2.0f, evaluate(PropertyValue<float>(2.0), 4)); + EXPECT_EQ(3.8f, evaluate(PropertyValue<float>(3.8), 4)); + EXPECT_EQ(22.0f, evaluate(PropertyValue<float>(22.0), 4)); + EXPECT_EQ(2.0f, evaluate(PropertyValue<float>(2.0), 22)); + EXPECT_EQ(3.8f, evaluate(PropertyValue<float>(3.8), 22)); + EXPECT_EQ(22.0f, evaluate(PropertyValue<float>(22.0), 22)); +} + +TEST(PropertyExpression, Expression) { + PropertyExpression<float> expression(interpolate(linear(), zoom(), 0.0, literal(0.0), 1.0, literal(1.0))); + EXPECT_EQ(0.0, evaluate(expression, 0.0)); + EXPECT_EQ(0.5, evaluate(expression, 0.5)); +} + +TEST(PropertyExpression, Defaults) { + EXPECT_EQ(1.0f, PropertyExpression<float>(number(get("property")), 0.0) + .evaluate(oneInteger, 2.0f)); + EXPECT_EQ(1.0f, PropertyExpression<float>(number(get("property")), 0.0) + .evaluate(oneDouble, 2.0f)); + EXPECT_EQ(0.0f, PropertyExpression<float>(number(get("property")), 0.0) + .evaluate(oneString, 2.0f)); + EXPECT_EQ(2.0f, PropertyExpression<float>(number(get("property"))) + .evaluate(oneString, 2.0f)); +} + +TEST(PropertyExpression, ZoomInterpolation) { + EXPECT_EQ(40.0f, PropertyExpression<float>( + interpolate(linear(), zoom(), + 0.0, interpolate(linear(), number(get("property")), 1.0, literal(24.0)), + 1.5, interpolate(linear(), number(get("property")), 1.0, literal(36.0)), + 3.0, interpolate(linear(), number(get("property")), 1.0, literal(48.0)) + ), 0.0f) + .evaluate(2.0f, oneInteger, -1.0f)) << "Should interpolate between stops"; + + EXPECT_EQ(33.0, PropertyExpression<float>( + interpolate(linear(), zoom(), + 5.0, interpolate(linear(), number(get("property")), 1.0, literal(33.0)), + 10.0, interpolate(linear(), number(get("property")), 1.0, literal(66.0)) + ), 0.0f) + .evaluate(0.0f, oneInteger, -1.0f)) << "Use first stop output for input values from -inf to first stop"; + + EXPECT_EQ(66.0, PropertyExpression<float>( + interpolate(linear(), zoom(), + 0.0, interpolate(linear(), number(get("property")), 1.0, literal(33.0)), + 10.0, interpolate(linear(), number(get("property")), 1.0, literal(66.0)) + ), 0.0f) + .evaluate(20.0f, oneInteger, -1.0f)) << "Use last stop output for input values from last stop to +inf"; + + EXPECT_EQ(66.0f, PropertyExpression<float>( + interpolate(linear(), zoom(), + 0.0, interpolate(linear(), number(get("property")), 1.0, literal(33.0)), + 10.0, interpolate(linear(), number(get("property")), 1.0, literal(66.0)) + ), 0.0f) + .evaluate(10.0f, oneInteger, -1.0f)) << "Should interpolate TO the last stop."; + + EXPECT_EQ(33.0f, PropertyExpression<float>( + interpolate(linear(), zoom(), + 0.0, interpolate(linear(), number(get("property")), 1.0, literal(33.0)), + 10.0, interpolate(linear(), number(get("property")), 1.0, literal(66.0)) + ), 0.0f) + .evaluate(0.0f, oneInteger, -1.0f)) << "Should interpolate TO the first stop"; +} + +TEST(PropertyExpression, Issue8460) { + PropertyExpression<float> fn1( + interpolate(linear(), zoom(), + 15.0, interpolate(linear(), number(get("property")), 1.0, literal(0.0)), + 15.2, interpolate(linear(), number(get("property")), 1.0, literal(600.0)) + ), 0.0f); + + EXPECT_NEAR( 0.0f, fn1.evaluate(15.0f, oneInteger, -1.0f), 0.00); + EXPECT_NEAR(300.0f, fn1.evaluate(15.1f, oneInteger, -1.0f), 0.01); + EXPECT_NEAR(600.0f, fn1.evaluate(15.2f, oneInteger, -1.0f), 0.00); + EXPECT_NEAR(600.0f, fn1.evaluate(16.0f, oneInteger, -1.0f), 0.00); + + PropertyExpression<float> fn2( + interpolate(linear(), zoom(), + 15.0, interpolate(linear(), number(get("property")), 1.0, literal(0.0)), + 15.2, interpolate(linear(), number(get("property")), 1.0, literal(300.0)), + 18.0, interpolate(linear(), number(get("property")), 1.0, literal(600.0)) + ), 0.0f); + + EXPECT_NEAR( 0.0f, fn2.evaluate(15.0f, oneInteger, -1.0f), 0.00); + EXPECT_NEAR(150.0f, fn2.evaluate(15.1f, oneInteger, -1.0f), 0.01); + EXPECT_NEAR(300.0f, fn2.evaluate(15.2f, oneInteger, -1.0f), 0.00); + EXPECT_NEAR(385.71f, fn2.evaluate(16.0f, oneInteger, -1.0f), 0.01); + EXPECT_NEAR(600.0f, fn2.evaluate(18.0f, oneInteger, -1.0f), 0.00); + EXPECT_NEAR(600.0f, fn2.evaluate(19.0f, oneInteger, -1.0f), 0.00); +} |