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#include "kml/base/tempfile.h"
#include "kml/base/file.h"
#include "gtest/gtest.h"

namespace kmlbase {

class TempFileTest : public testing::Test {
};

TEST_F(TempFileTest, TestTempFile) {
  string tempfile_name;  // To check successful deletion of tempfile.
  {
    TempFilePtr tempfile = TempFile::CreateTempFile();
    // The tempfile was created successfully.
    ASSERT_TRUE(tempfile != 0);
    // The tempfile has a name.
    ASSERT_FALSE(tempfile->name().empty());
    tempfile_name = tempfile->name();
    // The tempfile is accessible.
    ASSERT_TRUE(File::Exists(tempfile_name));
    // We can write and read data.
    const string s_written("some data");
    File::WriteStringToFile(s_written, tempfile_name);
    string s_read;
    File::ReadFileToString(tempfile_name, &s_read);
    ASSERT_EQ(s_written, s_read);
  }
  // Use of intrusive_ptr means TempFile's dtor is called at the end of the
  // block, which deletes the tempfile.
  ASSERT_FALSE(File::Exists(tempfile_name));
}

}  // end namespace kmlbase
