124 lines
5.4 KiB
C++
124 lines
5.4 KiB
C++
#include <mbgl/test/util.hpp>
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#include <mbgl/test/stub_geometry_tile_feature.hpp>
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#include <mbgl/style/property_expression.hpp>
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#include <mbgl/renderer/property_evaluator.hpp>
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#include <mbgl/renderer/property_evaluation_parameters.hpp>
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#include <mbgl/style/expression/dsl.hpp>
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using namespace mbgl;
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using namespace mbgl::style;
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using namespace mbgl::style::expression::dsl;
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using namespace std::string_literals;
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static StubGeometryTileFeature oneInteger {
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PropertyMap {{ "property", uint64_t(1) }}
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};
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static StubGeometryTileFeature oneDouble {
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PropertyMap {{ "property", 1.0 }}
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};
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static StubGeometryTileFeature oneString {
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PropertyMap {{ "property", "1"s }}
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};
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float evaluate(PropertyValue<float> value, float zoom) {
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return value.evaluate(PropertyEvaluator<float>(PropertyEvaluationParameters(zoom), 0));
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}
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TEST(PropertyExpression, Constant) {
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EXPECT_EQ(2.0f, evaluate(PropertyValue<float>(2.0), 0));
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EXPECT_EQ(3.8f, evaluate(PropertyValue<float>(3.8), 0));
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EXPECT_EQ(22.0f, evaluate(PropertyValue<float>(22.0), 0));
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EXPECT_EQ(2.0f, evaluate(PropertyValue<float>(2.0), 4));
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EXPECT_EQ(3.8f, evaluate(PropertyValue<float>(3.8), 4));
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EXPECT_EQ(22.0f, evaluate(PropertyValue<float>(22.0), 4));
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EXPECT_EQ(2.0f, evaluate(PropertyValue<float>(2.0), 22));
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EXPECT_EQ(3.8f, evaluate(PropertyValue<float>(3.8), 22));
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EXPECT_EQ(22.0f, evaluate(PropertyValue<float>(22.0), 22));
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}
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TEST(PropertyExpression, Expression) {
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PropertyExpression<float> expression(interpolate(linear(), zoom(), 0.0, literal(0.0), 1.0, literal(1.0)));
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EXPECT_EQ(0.0, evaluate(expression, 0.0));
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EXPECT_EQ(0.5, evaluate(expression, 0.5));
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}
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TEST(PropertyExpression, Defaults) {
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EXPECT_EQ(1.0f, PropertyExpression<float>(number(get("property")), 0.0)
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.evaluate(oneInteger, 2.0f));
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EXPECT_EQ(1.0f, PropertyExpression<float>(number(get("property")), 0.0)
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.evaluate(oneDouble, 2.0f));
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EXPECT_EQ(0.0f, PropertyExpression<float>(number(get("property")), 0.0)
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.evaluate(oneString, 2.0f));
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EXPECT_EQ(2.0f, PropertyExpression<float>(number(get("property")))
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.evaluate(oneString, 2.0f));
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}
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TEST(PropertyExpression, ZoomInterpolation) {
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EXPECT_EQ(40.0f, PropertyExpression<float>(
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interpolate(linear(), zoom(),
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0.0, interpolate(linear(), number(get("property")), 1.0, literal(24.0)),
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1.5, interpolate(linear(), number(get("property")), 1.0, literal(36.0)),
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3.0, interpolate(linear(), number(get("property")), 1.0, literal(48.0))
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), 0.0f)
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.evaluate(2.0f, oneInteger, -1.0f)) << "Should interpolate between stops";
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EXPECT_EQ(33.0, PropertyExpression<float>(
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interpolate(linear(), zoom(),
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5.0, interpolate(linear(), number(get("property")), 1.0, literal(33.0)),
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10.0, interpolate(linear(), number(get("property")), 1.0, literal(66.0))
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), 0.0f)
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.evaluate(0.0f, oneInteger, -1.0f)) << "Use first stop output for input values from -inf to first stop";
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EXPECT_EQ(66.0, PropertyExpression<float>(
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interpolate(linear(), zoom(),
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0.0, interpolate(linear(), number(get("property")), 1.0, literal(33.0)),
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10.0, interpolate(linear(), number(get("property")), 1.0, literal(66.0))
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), 0.0f)
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.evaluate(20.0f, oneInteger, -1.0f)) << "Use last stop output for input values from last stop to +inf";
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EXPECT_EQ(66.0f, PropertyExpression<float>(
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interpolate(linear(), zoom(),
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0.0, interpolate(linear(), number(get("property")), 1.0, literal(33.0)),
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10.0, interpolate(linear(), number(get("property")), 1.0, literal(66.0))
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), 0.0f)
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.evaluate(10.0f, oneInteger, -1.0f)) << "Should interpolate TO the last stop.";
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EXPECT_EQ(33.0f, PropertyExpression<float>(
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interpolate(linear(), zoom(),
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0.0, interpolate(linear(), number(get("property")), 1.0, literal(33.0)),
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10.0, interpolate(linear(), number(get("property")), 1.0, literal(66.0))
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), 0.0f)
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.evaluate(0.0f, oneInteger, -1.0f)) << "Should interpolate TO the first stop";
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}
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TEST(PropertyExpression, Issue8460) {
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PropertyExpression<float> fn1(
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interpolate(linear(), zoom(),
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15.0, interpolate(linear(), number(get("property")), 1.0, literal(0.0)),
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15.2, interpolate(linear(), number(get("property")), 1.0, literal(600.0))
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), 0.0f);
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EXPECT_NEAR( 0.0f, fn1.evaluate(15.0f, oneInteger, -1.0f), 0.00);
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EXPECT_NEAR(300.0f, fn1.evaluate(15.1f, oneInteger, -1.0f), 0.01);
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EXPECT_NEAR(600.0f, fn1.evaluate(15.2f, oneInteger, -1.0f), 0.00);
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EXPECT_NEAR(600.0f, fn1.evaluate(16.0f, oneInteger, -1.0f), 0.00);
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PropertyExpression<float> fn2(
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interpolate(linear(), zoom(),
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15.0, interpolate(linear(), number(get("property")), 1.0, literal(0.0)),
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15.2, interpolate(linear(), number(get("property")), 1.0, literal(300.0)),
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18.0, interpolate(linear(), number(get("property")), 1.0, literal(600.0))
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), 0.0f);
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EXPECT_NEAR( 0.0f, fn2.evaluate(15.0f, oneInteger, -1.0f), 0.00);
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EXPECT_NEAR(150.0f, fn2.evaluate(15.1f, oneInteger, -1.0f), 0.01);
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EXPECT_NEAR(300.0f, fn2.evaluate(15.2f, oneInteger, -1.0f), 0.00);
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EXPECT_NEAR(385.71f, fn2.evaluate(16.0f, oneInteger, -1.0f), 0.01);
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EXPECT_NEAR(600.0f, fn2.evaluate(18.0f, oneInteger, -1.0f), 0.00);
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EXPECT_NEAR(600.0f, fn2.evaluate(19.0f, oneInteger, -1.0f), 0.00);
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}
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