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NegateTest.h
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1 // Copyright 2015, 2016 Thomas Trapp
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
15 #ifndef HEXT_NEGATE_TEST_H_INCLUDED
16 #define HEXT_NEGATE_TEST_H_INCLUDED
17 
18 /// @file
19 /// Declares hext::NegateTest
20 
21 #include "hext/Cloneable.h"
22 #include "hext/ValueTest.h"
23 #include "hext/Visibility.h"
24 
25 #include <memory>
26 
27 
28 namespace hext {
29 
30 
31 /// Negates the result of another ValueTest.
32 ///
33 /// @par Example:
34 /// ~~~~~~~~~~~~~
35 /// NegateTest not_foo(std::make_unique<EqualsTest>("foo"));
36 ///
37 /// assert( not_foo.test("bar"));
38 /// assert( not_foo.test("baz"));
39 /// assert(!not_foo.test("foo"));
40 /// ~~~~~~~~~~~~~
41 class HEXT_PUBLIC NegateTest final : public Cloneable<NegateTest, ValueTest>
42 {
43 public:
44  /// Constructs a NegateTest.
45  ///
46  /// @param value_test: The ValueTest a subject has to fail.
47  explicit NegateTest(std::unique_ptr<ValueTest> value_test) noexcept;
48 
49  ~NegateTest() noexcept = default;
50  NegateTest(NegateTest&& other) noexcept = default;
51  NegateTest(const NegateTest& other);
52  NegateTest& operator=(NegateTest&& other) noexcept = default;
53  NegateTest& operator=(const NegateTest& other);
54 
55  /// Returns true if the given ValueTest fails for subject.
56  ///
57  /// @param subject: The string that is to be tested.
58  bool test(const char * subject) const override;
59 
60 private:
61  /// The ValueTest a subject has to fail.
62  std::unique_ptr<ValueTest> test_;
63 };
64 
65 
66 } // namespace hext
67 
68 
69 #endif // HEXT_NEGATE_TEST_H_INCLUDED
70 
Defines HEXT_PUBLIC and HEXT_PRIVATE.
#define HEXT_PUBLIC
Definition: Visibility.h:26
Curiously recurring template pattern that extends a base class to provide a virtual method Cloneable:...
Definition: Cloneable.h:36
Negates the result of another ValueTest.
Definition: NegateTest.h:41
Declares hext::ValueTest.
Defines template hext::Cloneable.