mirror of https://github.com/arendst/Tasmota.git
114 lines
2.6 KiB
C++
114 lines
2.6 KiB
C++
// Copyright Benoit Blanchon 2014-2017
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// MIT License
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//
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// Arduino JSON library
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// https://github.com/bblanchon/ArduinoJson
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// If you like this project, please add a star!
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#include <gtest/gtest.h>
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#include <limits>
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#include <ArduinoJson/Serialization/JsonWriter.hpp>
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#include <ArduinoJson/Serialization/StaticStringBuilder.hpp>
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using namespace ArduinoJson::Internals;
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class JsonWriter_WriteFloat_Tests : public testing::Test {
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protected:
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void whenInputIs(double input, uint8_t digits = 2) {
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StaticStringBuilder sb(buffer, sizeof(buffer));
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JsonWriter writer(sb);
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writer.writeFloat(input, digits);
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returnValue = writer.bytesWritten();
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}
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void outputMustBe(const char *expected) {
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EXPECT_STREQ(expected, buffer);
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EXPECT_EQ(strlen(expected), returnValue);
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}
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private:
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char buffer[1024];
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size_t returnValue;
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};
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TEST_F(JsonWriter_WriteFloat_Tests, NaN) {
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whenInputIs(std::numeric_limits<double>::signaling_NaN());
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outputMustBe("NaN");
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}
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TEST_F(JsonWriter_WriteFloat_Tests, PositiveInfinity) {
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whenInputIs(std::numeric_limits<double>::infinity());
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outputMustBe("Infinity");
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}
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TEST_F(JsonWriter_WriteFloat_Tests, NegativeInfinity) {
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whenInputIs(-std::numeric_limits<double>::infinity());
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outputMustBe("-Infinity");
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}
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TEST_F(JsonWriter_WriteFloat_Tests, Zero) {
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whenInputIs(0);
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outputMustBe("0.00");
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}
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TEST_F(JsonWriter_WriteFloat_Tests, ZeroDigits_Rounding) {
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whenInputIs(9.5, 0);
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outputMustBe("10");
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}
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TEST_F(JsonWriter_WriteFloat_Tests, ZeroDigits_NoRounding) {
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whenInputIs(9.4, 0);
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outputMustBe("9");
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}
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TEST_F(JsonWriter_WriteFloat_Tests, OneDigit_Rounding) {
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whenInputIs(9.95, 1);
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outputMustBe("10.0");
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}
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TEST_F(JsonWriter_WriteFloat_Tests, OneDigit_NoRounding) {
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whenInputIs(9.94, 1);
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outputMustBe("9.9");
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}
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TEST_F(JsonWriter_WriteFloat_Tests, TwoDigits_Rounding) {
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whenInputIs(9.995, 2);
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outputMustBe("10.00");
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}
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TEST_F(JsonWriter_WriteFloat_Tests, TwoDigits_NoRounding) {
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whenInputIs(9.994, 2);
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outputMustBe("9.99");
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}
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TEST_F(JsonWriter_WriteFloat_Tests, ThreeDigits_Rounding) {
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whenInputIs(9.9995, 3);
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outputMustBe("10.000");
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}
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TEST_F(JsonWriter_WriteFloat_Tests, ThreeDigits_NoRounding) {
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whenInputIs(9.9994, 3);
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outputMustBe("9.999");
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}
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TEST_F(JsonWriter_WriteFloat_Tests, FourDigits_Rounding) {
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whenInputIs(9.99995, 4);
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outputMustBe("10.0000");
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}
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TEST_F(JsonWriter_WriteFloat_Tests, FourDigits_NoRounding) {
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whenInputIs(9.99994, 4);
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outputMustBe("9.9999");
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}
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TEST_F(JsonWriter_WriteFloat_Tests, FiveDigits_Rounding) {
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whenInputIs(9.999995, 5);
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outputMustBe("10.00000");
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}
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TEST_F(JsonWriter_WriteFloat_Tests, FiveDigits_NoRounding) {
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whenInputIs(9.999994, 5);
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outputMustBe("9.99999");
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}
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