text: /*
   * Copyright (c) 2012, Willow Garage, Inc.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   *     * Redistributions of source code must retain the above copyright
   *       notice, this list of conditions and the following disclaimer.
   *     * Redistributions in binary form must reproduce the above copyright
   *       notice, this list of conditions and the following disclaimer in the
   *       documentation and/or other materials provided with the distribution.
   *     * Neither the name of the Willow Garage, Inc. nor the names of its
   *       contributors may be used to endorse or promote products derived from
   *       this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  
  #include <locale>
  
  #include <gtest/gtest.h>
  #include <rviz/uniform_string_stream.h>
  
  using namespace rviz;
  
  TEST(UniformStringStream, parse_floats)
  {
    UniformStringStream uss("1,2 3.4 5,6e2");
    float a, b, c;
    uss.parseFloat(a);
    uss.parseFloat(b);
    uss.parseFloat(c);
    EXPECT_TRUE(!!uss);
    EXPECT_EQ(a, 1.2f);
    EXPECT_EQ(b, 3.4f);
    EXPECT_EQ(c, 560.0f);
    uss.parseFloat(a);
    EXPECT_FALSE(!!uss);
  }
  
  TEST(UniformStringStream, parse_ints)
  {
    UniformStringStream uss("1 2 -3");
    int a, b, c;
    uss >> a;
    uss >> b;
    uss >> c;
    EXPECT_TRUE(!!uss);
    EXPECT_EQ(a, 1);
    EXPECT_EQ(b, 2);
    EXPECT_EQ(c, -3);
    uss >> a;
    EXPECT_FALSE(!!uss);
  }
  
  class CommaFloat : public std::numpunct<char>
  {
  protected:
    char do_decimal_point() const override
    {
      return 'p';
    }
  };
  
  TEST(UniformStringStream, print_floats)
  {
    UniformStringStream uss;
    uss << 1.2f;
    EXPECT_EQ(uss.str(), "1.2");
  
    CommaFloat* comma_float_facet = new CommaFloat;
    std::locale new_locale(std::locale::classic(), comma_float_facet);
  
    std::locale old_locale = std::locale::global(new_locale);
  
    // Make sure the comma_float_facet is working.
    std::stringstream ss;
    ss << 3.4f;
    EXPECT_EQ(ss.str(), "3p4");
  
    // Make sure the float facet gets clobbered within UniformStringStream.
    UniformStringStream uss2;
    uss2 << 3.4f;
    EXPECT_EQ(uss2.str(), "3.4");
  
    // Put things back to normal so other tests don't break.
    std::locale::global(old_locale);
  }
  
  int main(int argc, char** argv)
  {
    testing::InitGoogleTest(&argc, argv);
    return RUN_ALL_TESTS();
  }
  