81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
#include <mbgl/test/util.hpp>
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#include <mbgl/style/conversion/json.hpp>
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#include <mbgl/style/conversion/constant.hpp>
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#include <mbgl/style/conversion/function.hpp>
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#include <mbgl/style/conversion/data_driven_property_value.hpp>
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#include <mbgl/util/rapidjson.hpp>
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using namespace mbgl;
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using namespace mbgl::style;
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using namespace mbgl::style::conversion;
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TEST(StyleConversion, Function) {
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Error error;
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auto parseFunction = [&](const std::string& json) {
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return convertJSON<CameraFunction<float>>(json, error);
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};
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auto fn1 = parseFunction(R"({"stops":[]})");
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ASSERT_FALSE(fn1);
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ASSERT_EQ("function must have at least one stop", error.message);
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auto fn2 = parseFunction(R"({"stops":[1]})");
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ASSERT_FALSE(fn2);
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ASSERT_EQ("function stop must be an array", error.message);
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auto fn3 = parseFunction(R"({"stops":[[]]})");
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ASSERT_FALSE(fn3);
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ASSERT_EQ("function stop must have two elements", error.message);
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auto fn4 = parseFunction(R"({"stops":[[-1,-1]]})");
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ASSERT_TRUE(bool(fn4));
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auto fn5 = parseFunction(R"({"stops":[[0,1,2]]})");
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ASSERT_FALSE(fn5);
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ASSERT_EQ("function stop must have two elements", error.message);
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auto fn6 = parseFunction(R"({"stops":[[0,"x"]]})");
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ASSERT_FALSE(fn6);
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ASSERT_EQ("value must be a number", error.message);
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auto fn7 = parseFunction("{}");
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ASSERT_FALSE(fn7);
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ASSERT_EQ("function value must specify stops", error.message);
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auto fn8 = parseFunction("[]");
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ASSERT_FALSE(fn8);
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ASSERT_EQ("function must be an object", error.message);
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auto fn9 = parseFunction(R"({"stops":[[0,0]],"base":false})");
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ASSERT_FALSE(fn9);
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ASSERT_EQ("function base must be a number", error.message);
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}
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TEST(StyleConversion, CompositeFunctionExpression) {
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Error error;
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auto parseFunction = [&](const std::string& src) {
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JSDocument doc;
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doc.Parse<0>(src);
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return convert<DataDrivenPropertyValue<float>>(doc, error);
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};
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auto fn1 = parseFunction(R"(["interpolate", ["linear"], ["zoom"], 0, ["number", ["get", "x"]], 10, 10])");
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ASSERT_TRUE(fn1);
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auto fn2 = parseFunction(R"(["coalesce", ["interpolate", ["linear"], ["zoom"], 0, ["number", ["get", "x"]], 10, 10], 0])");
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ASSERT_TRUE(fn2);
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auto fn3 = parseFunction(R"(["let", "a", 0, ["interpolate", ["linear"], ["zoom"], 0, ["number", ["get", "x"]], 10, 10] ])");
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ASSERT_TRUE(fn3);
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auto fn4 = parseFunction(R"(["coalesce", ["let", "a", 0, ["interpolate", ["linear"], ["zoom"], 0, ["number", ["get", "x"]], 10, 10], 0 ])");
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ASSERT_TRUE(fn4);
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auto fn5 = parseFunction(R"(["coalesce", ["interpolate", ["linear"], ["number", ["get", "x"]], 0, ["zoom"], 10, 10], 0])");
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ASSERT_FALSE(fn5);
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ASSERT_EQ(R"("zoom" expression may only be used as input to a top-level "step" or "interpolate" expression.)", error.message);
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}
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