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#include "base/fixed_string.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace {
  class FixedStringTest : public testing::Test {
  };
}

TEST(FixedStringTest, TestBasic) {
  const wchar_t kData[] = L"hello world";

  FixedString<wchar_t, 40> buf;

  buf.Append(kData);
  EXPECT_EQ(arraysize(kData)-1, buf.size());
  EXPECT_EQ(0, wcscmp(kData, buf.get()));

  buf.Append(' ');
  buf.Append(kData);
  const wchar_t kExpected[] = L"hello world hello world";
  EXPECT_EQ(arraysize(kExpected)-1, buf.size());
  EXPECT_EQ(0, wcscmp(kExpected, buf.get()));
  EXPECT_EQ(false, buf.was_truncated());
}

// Disable this test in debug builds since overflow asserts.
TEST(FixedStringTest, TestOverflow) {
  FixedString<wchar_t, 5> buf;
  buf.Append(L"hello world");
  EXPECT_EQ(0, buf.size());
  EXPECT_EQ(0, buf.get()[0]);
  EXPECT_EQ(true, buf.was_truncated());
}