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Fix NaN check and add unit tests

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This commit is contained in:
Jeppe Tarp 2019-08-03 18:00:03 +02:00
parent 92693d6e60
commit 8739e21e6a
2 changed files with 40 additions and 11 deletions
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8
include/yaml-cpp/emitter.h
View File

@ -7,6 +7,7 @@
#pragma once
#endif
#include <cmath>
#include <cstddef>
#include <limits>
#include <memory>
@ -158,10 +159,9 @@ inline Emitter& Emitter::WriteStreamable(T value) {
bool special = false;
if (std::is_floating_point_v<T>) {
if ((std::numeric_limits<T>::has_quiet_NaN &&
value == std::numeric_limits<T>::quiet_NaN()) ||
(std::numeric_limits<T>::has_signaling_NaN &&
value == std::numeric_limits<T>::signaling_NaN())) {
if ((std::numeric_limits<T>::has_quiet_NaN ||
std::numeric_limits<T>::has_signaling_NaN) &&
value != value) {
special = true;
stream << ".nan";
} else if (std::numeric_limits<T>::has_infinity) {

43
test/integration/emitter_test.cpp
View File

@ -253,8 +253,9 @@ TEST_F(EmitterTest, ScalarFormat) {
out << DoubleQuoted << "explicit double-quoted scalar";
out << "auto-detected\ndouble-quoted scalar";
out << "a non-\"auto-detected\" double-quoted scalar";
out << Literal << "literal scalar\nthat may span\nmany, many\nlines "
"and have \"whatever\" crazy\tsymbols that we like";
out << Literal
<< "literal scalar\nthat may span\nmany, many\nlines "
"and have \"whatever\" crazy\tsymbols that we like";
out << EndSeq;
ExpectEmit(
@ -526,9 +527,10 @@ TEST_F(EmitterTest, SimpleComment) {
TEST_F(EmitterTest, MultiLineComment) {
out << BeginSeq;
out << "item 1" << Comment(
"really really long\ncomment that couldn't "
"possibly\nfit on one line");
out << "item 1"
<< Comment(
"really really long\ncomment that couldn't "
"possibly\nfit on one line");
out << "item 2";
out << EndSeq;
@ -984,6 +986,33 @@ TEST_F(EmitterTest, ValueOfBackslash) {
ExpectEmit("foo: \"\\\\\"");
}
TEST_F(EmitterTest, Infinity) {
out << YAML::BeginMap;
out << YAML::Key << "foo" << YAML::Value
<< std::numeric_limits<float>::infinity();
out << YAML::EndMap;
ExpectEmit("foo: .inf");
}
TEST_F(EmitterTest, NegInfinity) {
out << YAML::BeginMap;
out << YAML::Key << "foo" << YAML::Value
<< -std::numeric_limits<float>::infinity();
out << YAML::EndMap;
ExpectEmit("foo: -.inf");
}
TEST_F(EmitterTest, NaN) {
out << YAML::BeginMap;
out << YAML::Key << "foo" << YAML::Value
<< -std::numeric_limits<float>::quiet_NaN();
out << YAML::EndMap;
ExpectEmit("foo: .nan");
}
class EmitterErrorTest : public ::testing::Test {
protected:
void ExpectEmitError(const std::string& expectedError) {
@ -1034,5 +1063,5 @@ TEST_F(EmitterErrorTest, InvalidAlias) {
ExpectEmitError(ErrorMsg::INVALID_ALIAS);
}
}
}
} // namespace
} // namespace YAML