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37 * \brief Tests routines in strconvert.h.
39 * \author Christian Blau <blau@kth.se>
41 * \ingroup module_utility
46 #include "gromacs/utility/strconvert.h"
48 #include <gtest/gtest.h>
57 TEST(StringConvert, NoResultFromEptyString)
59 const std::optional<std::array<float, 3>> parsedArray =
60 parsedArrayFromInputString<float, 3>("");
61 EXPECT_FALSE(parsedArray);
64 TEST(StringConvert, ThreeFloatsSuccessfully)
66 const std::optional<std::array<float, 3>> parsedArray =
67 parsedArrayFromInputString<float, 3>("1.2 .5 -6e5");
68 EXPECT_FLOAT_EQ((*parsedArray)[0], 1.2);
69 EXPECT_FLOAT_EQ((*parsedArray)[1], .5);
70 EXPECT_FLOAT_EQ((*parsedArray)[2], -6e5);
73 TEST(StringConvert, OneIntSucessfully)
75 const std::optional<std::array<int, 1>> parsedArray =
76 parsedArrayFromInputString<int, 1>(" 1 \t ");
77 EXPECT_FLOAT_EQ((*parsedArray)[0], 1);
80 TEST(StringConvert, FloatAsStringToIntArrayThrows)
82 const auto& toTest = []() { return parsedArrayFromInputString<int, 1>(" 1.2 "); };
83 EXPECT_THROW(toTest(), InvalidInputError);
86 TEST(StringConvert, ThrowsWhenWrongSize)
88 // use the lambda due to aviod Macro substitution error with template function
89 const auto& toTest = []() { return parsedArrayFromInputString<float, 2>("1.2\t\n .5 -6e5"); };
90 EXPECT_THROW(toTest(), InvalidInputError);
93 TEST(StringConvert, StringIdentityTransformWithArrayThrows)
95 // use the lambda due to aviod Macro substitution error with template function
96 const auto& toTest = []() {
97 return stringIdentityTransformWithArrayCheck<float, 3>(
98 "-10 5 4 1", "Here, I explain where the error occured: ");
100 EXPECT_THROW(toTest(), InvalidInputError);
103 TEST(StringConvert, StringIdentityTransformWithArrayOkay)
105 // use the lambda due to aviod Macro substitution error with template function
106 const std::string input("1.2\t\n .5 -6e5");
107 const std::string output = stringIdentityTransformWithArrayCheck<float, 3>(
108 input, "Here, I explain where the error occured: ");
109 EXPECT_EQ(input, output);