uniform_string_stream_test.cpp
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29 
30 #include <locale>
31 
32 #include <gtest/gtest.h>
34 
35 using namespace rviz;
36 
37 TEST(UniformStringStream, parse_floats)
38 {
39  UniformStringStream uss("1,2 3.4 5,6e2");
40  float a, b, c;
41  uss.parseFloat(a);
42  uss.parseFloat(b);
43  uss.parseFloat(c);
44  EXPECT_TRUE(!!uss);
45  EXPECT_EQ(a, 1.2f);
46  EXPECT_EQ(b, 3.4f);
47  EXPECT_EQ(c, 560.0f);
48  uss.parseFloat(a);
49  EXPECT_FALSE(!!uss);
50 }
51 
53 {
54  UniformStringStream uss("1 2 -3");
55  int a, b, c;
56  uss >> a;
57  uss >> b;
58  uss >> c;
59  EXPECT_TRUE(!!uss);
60  EXPECT_EQ(a, 1);
61  EXPECT_EQ(b, 2);
62  EXPECT_EQ(c, -3);
63  uss >> a;
64  EXPECT_FALSE(!!uss);
65 }
66 
67 class CommaFloat : public std::numpunct<char>
68 {
69 protected:
70  char do_decimal_point() const override
71  {
72  return 'p';
73  }
74 };
75 
76 TEST(UniformStringStream, print_floats)
77 {
79  uss << 1.2f;
80  EXPECT_EQ(uss.str(), "1.2");
81 
82  CommaFloat* comma_float_facet = new CommaFloat;
83  std::locale new_locale(std::locale::classic(), comma_float_facet);
84 
85  std::locale old_locale = std::locale::global(new_locale);
86 
87  // Make sure the comma_float_facet is working.
88  std::stringstream ss;
89  ss << 3.4f;
90  EXPECT_EQ(ss.str(), "3p4");
91 
92  // Make sure the float facet gets clobbered within UniformStringStream.
94  uss2 << 3.4f;
95  EXPECT_EQ(uss2.str(), "3.4");
96 
97  // Put things back to normal so other tests don't break.
98  std::locale::global(old_locale);
99 }
100 
101 int main(int argc, char** argv)
102 {
103  testing::InitGoogleTest(&argc, argv);
104  return RUN_ALL_TESTS();
105 }
void parseFloat(float &f)
Parse a float, supporting both period- and comma- style floats (1,2 and 1.2).
f
std::stringstream subclass which defaults to the "C" locale, so serialization of numbers is uniform a...
char do_decimal_point() const override
int main(int argc, char **argv)
TEST(UniformStringStream, parse_floats)


rviz
Author(s): Dave Hershberger, David Gossow, Josh Faust
autogenerated on Fri Aug 12 2022 02:06:09