The Tor Browser: media/webrtc/trunk/testing/gtest/test/gtest-tuple

media/webrtc/trunk/testing/gtest/test/gtest-tuple_test.cc@4ab42b5ab56c (annotated)

media/webrtc/trunk/testing/gtest/test/gtest-tuple_test.cc

Wed, 31 Dec 2014 07:53:36 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 07:53:36 +0100
branch: TOR_BUG_3246
changeset 5: 4ab42b5ab56c
permissions: -rw-r--r--

Correct small whitespace inconsistency, lost while renaming variables.

 // Copyright 2007, Google 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 Google 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.
 //
 // Author: wan@google.com (Zhanyong Wan)
 #include "gtest/internal/gtest-tuple.h"
 #include <utility>
 #include "gtest/gtest.h"
 namespace {
 using ::std::tr1::get;
 using ::std::tr1::make_tuple;
 using ::std::tr1::tuple;
 using ::std::tr1::tuple_element;
 using ::std::tr1::tuple_size;
 using ::testing::StaticAssertTypeEq;
 // Tests that tuple_element<K, tuple<T0, T1, ..., TN> >::type returns TK.
 TEST(tuple_element_Test, ReturnsElementType) {
   StaticAssertTypeEq<int, tuple_element<0, tuple<int, char> >::type>();
   StaticAssertTypeEq<int&, tuple_element<1, tuple<double, int&> >::type>();
   StaticAssertTypeEq<bool, tuple_element<2, tuple<double, int, bool> >::type>();
 }
 // Tests that tuple_size<T>::value gives the number of fields in tuple
 // type T.
 TEST(tuple_size_Test, ReturnsNumberOfFields) {
   EXPECT_EQ(0, +tuple_size<tuple<> >::value);
   EXPECT_EQ(1, +tuple_size<tuple<void*> >::value);
   EXPECT_EQ(1, +tuple_size<tuple<char> >::value);
   EXPECT_EQ(1, +(tuple_size<tuple<tuple<int, double> > >::value));
   EXPECT_EQ(2, +(tuple_size<tuple<int&, const char> >::value));
   EXPECT_EQ(3, +(tuple_size<tuple<char*, void, const bool&> >::value));
 }
 // Tests comparing a tuple with itself.
 TEST(ComparisonTest, ComparesWithSelf) {
   const tuple<int, char, bool> a(5, 'a', false);
   EXPECT_TRUE(a == a);
   EXPECT_FALSE(a != a);
 }
 // Tests comparing two tuples with the same value.
 TEST(ComparisonTest, ComparesEqualTuples) {
   const tuple<int, bool> a(5, true), b(5, true);
   EXPECT_TRUE(a == b);
   EXPECT_FALSE(a != b);
 }
 // Tests comparing two different tuples that have no reference fields.
 TEST(ComparisonTest, ComparesUnequalTuplesWithoutReferenceFields) {
   typedef tuple<const int, char> FooTuple;
   const FooTuple a(0, 'x');
   const FooTuple b(1, 'a');
   EXPECT_TRUE(a != b);
   EXPECT_FALSE(a == b);
   const FooTuple c(1, 'b');
   EXPECT_TRUE(b != c);
   EXPECT_FALSE(b == c);
 }
 // Tests comparing two different tuples that have reference fields.
 TEST(ComparisonTest, ComparesUnequalTuplesWithReferenceFields) {
   typedef tuple<int&, const char&> FooTuple;
   int i = 5;
   const char ch = 'a';
   const FooTuple a(i, ch);
   int j = 6;
   const FooTuple b(j, ch);
   EXPECT_TRUE(a != b);
   EXPECT_FALSE(a == b);
   j = 5;
   const char ch2 = 'b';
   const FooTuple c(j, ch2);
   EXPECT_TRUE(b != c);
   EXPECT_FALSE(b == c);
 }
 // Tests that a tuple field with a reference type is an alias of the
 // variable it's supposed to reference.
 TEST(ReferenceFieldTest, IsAliasOfReferencedVariable) {
   int n = 0;
   tuple<bool, int&> t(true, n);
   n = 1;
   EXPECT_EQ(n, get<1>(t))
       << "Changing a underlying variable should update the reference field.";
   // Makes sure that the implementation doesn't do anything funny with
   // the & operator for the return type of get<>().
   EXPECT_EQ(&n, &(get<1>(t)))
       << "The address of a reference field should equal the address of "
       << "the underlying variable.";
   get<1>(t) = 2;
   EXPECT_EQ(2, n)
       << "Changing a reference field should update the underlying variable.";
 }
 // Tests that tuple's default constructor default initializes each field.
 // This test needs to compile without generating warnings.
 TEST(TupleConstructorTest, DefaultConstructorDefaultInitializesEachField) {
   // The TR1 report requires that tuple's default constructor default
   // initializes each field, even if it's a primitive type.  If the
   // implementation forgets to do this, this test will catch it by
   // generating warnings about using uninitialized variables (assuming
   // a decent compiler).
   tuple<> empty;
   tuple<int> a1, b1;
   b1 = a1;
   EXPECT_EQ(0, get<0>(b1));
   tuple<int, double> a2, b2;
   b2 = a2;
   EXPECT_EQ(0, get<0>(b2));
   EXPECT_EQ(0.0, get<1>(b2));
   tuple<double, char, bool*> a3, b3;
   b3 = a3;
   EXPECT_EQ(0.0, get<0>(b3));
   EXPECT_EQ('\0', get<1>(b3));
   EXPECT_TRUE(get<2>(b3) == NULL);
   tuple<int, int, int, int, int, int, int, int, int, int> a10, b10;
   b10 = a10;
   EXPECT_EQ(0, get<0>(b10));
   EXPECT_EQ(0, get<1>(b10));
   EXPECT_EQ(0, get<2>(b10));
   EXPECT_EQ(0, get<3>(b10));
   EXPECT_EQ(0, get<4>(b10));
   EXPECT_EQ(0, get<5>(b10));
   EXPECT_EQ(0, get<6>(b10));
   EXPECT_EQ(0, get<7>(b10));
   EXPECT_EQ(0, get<8>(b10));
   EXPECT_EQ(0, get<9>(b10));
 }
 // Tests constructing a tuple from its fields.
 TEST(TupleConstructorTest, ConstructsFromFields) {
   int n = 1;
   // Reference field.
   tuple<int&> a(n);
   EXPECT_EQ(&n, &(get<0>(a)));
   // Non-reference fields.
   tuple<int, char> b(5, 'a');
   EXPECT_EQ(5, get<0>(b));
   EXPECT_EQ('a', get<1>(b));
   // Const reference field.
   const int m = 2;
   tuple<bool, const int&> c(true, m);
   EXPECT_TRUE(get<0>(c));
   EXPECT_EQ(&m, &(get<1>(c)));
 }
 // Tests tuple's copy constructor.
 TEST(TupleConstructorTest, CopyConstructor) {
   tuple<double, bool> a(0.0, true);
   tuple<double, bool> b(a);
   EXPECT_DOUBLE_EQ(0.0, get<0>(b));
   EXPECT_TRUE(get<1>(b));
 }
 // Tests constructing a tuple from another tuple that has a compatible
 // but different type.
 TEST(TupleConstructorTest, ConstructsFromDifferentTupleType) {
   tuple<int, int, char> a(0, 1, 'a');
   tuple<double, long, int> b(a);
   EXPECT_DOUBLE_EQ(0.0, get<0>(b));
   EXPECT_EQ(1, get<1>(b));
   EXPECT_EQ('a', get<2>(b));
 }
 // Tests constructing a 2-tuple from an std::pair.
 TEST(TupleConstructorTest, ConstructsFromPair) {
   ::std::pair<int, char> a(1, 'a');
   tuple<int, char> b(a);
   tuple<int, const char&> c(a);
 }
 // Tests assigning a tuple to another tuple with the same type.
 TEST(TupleAssignmentTest, AssignsToSameTupleType) {
   const tuple<int, long> a(5, 7L);
   tuple<int, long> b;
   b = a;
   EXPECT_EQ(5, get<0>(b));
   EXPECT_EQ(7L, get<1>(b));
 }
 // Tests assigning a tuple to another tuple with a different but
 // compatible type.
 TEST(TupleAssignmentTest, AssignsToDifferentTupleType) {
   const tuple<int, long, bool> a(1, 7L, true);
   tuple<long, int, bool> b;
   b = a;
   EXPECT_EQ(1L, get<0>(b));
   EXPECT_EQ(7, get<1>(b));
   EXPECT_TRUE(get<2>(b));
 }
 // Tests assigning an std::pair to a 2-tuple.
 TEST(TupleAssignmentTest, AssignsFromPair) {
   const ::std::pair<int, bool> a(5, true);
   tuple<int, bool> b;
   b = a;
   EXPECT_EQ(5, get<0>(b));
   EXPECT_TRUE(get<1>(b));
   tuple<long, bool> c;
   c = a;
   EXPECT_EQ(5L, get<0>(c));
   EXPECT_TRUE(get<1>(c));
 }
 // A fixture for testing big tuples.
 class BigTupleTest : public testing::Test {
  protected:
   typedef tuple<int, int, int, int, int, int, int, int, int, int> BigTuple;
   BigTupleTest() :
       a_(1, 0, 0, 0, 0, 0, 0, 0, 0, 2),
       b_(1, 0, 0, 0, 0, 0, 0, 0, 0, 3) {}
   BigTuple a_, b_;
 };
 // Tests constructing big tuples.
 TEST_F(BigTupleTest, Construction) {
   BigTuple a;
   BigTuple b(b_);
 }
 // Tests that get<N>(t) returns the N-th (0-based) field of tuple t.
 TEST_F(BigTupleTest, get) {
   EXPECT_EQ(1, get<0>(a_));
   EXPECT_EQ(2, get<9>(a_));
   // Tests that get() works on a const tuple too.
   const BigTuple a(a_);
   EXPECT_EQ(1, get<0>(a));
   EXPECT_EQ(2, get<9>(a));
 }
 // Tests comparing big tuples.
 TEST_F(BigTupleTest, Comparisons) {
   EXPECT_TRUE(a_ == a_);
   EXPECT_FALSE(a_ != a_);
   EXPECT_TRUE(a_ != b_);
   EXPECT_FALSE(a_ == b_);
 }
 TEST(MakeTupleTest, WorksForScalarTypes) {
   tuple<bool, int> a;
   a = make_tuple(true, 5);
   EXPECT_TRUE(get<0>(a));
   EXPECT_EQ(5, get<1>(a));
   tuple<char, int, long> b;
   b = make_tuple('a', 'b', 5);
   EXPECT_EQ('a', get<0>(b));
   EXPECT_EQ('b', get<1>(b));
   EXPECT_EQ(5, get<2>(b));
 }
 TEST(MakeTupleTest, WorksForPointers) {
   int a[] = { 1, 2, 3, 4 };
   const char* const str = "hi";
   int* const p = a;
   tuple<const char*, int*> t;
   t = make_tuple(str, p);
   EXPECT_EQ(str, get<0>(t));
   EXPECT_EQ(p, get<1>(t));
 }
 }  // namespace

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media/webrtc/trunk/testing/gtest/test/gtest-tuple_test.cc