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Support custom allocators in vector Matchers (#1909)

This commit is contained in:
schallerr 2020-04-16 15:36:54 +02:00 committed by GitHub
parent fa4a93e051
commit 38f897c887
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GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 222 additions and 48 deletions
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78
include/internal/catch_matchers_vector.h
View File

@ -17,12 +17,12 @@ namespace Catch {
namespace Matchers {
namespace Vector {
template<typename T>
struct ContainsElementMatcher : MatcherBase<std::vector<T>> {
template<typename T, typename Alloc>
struct ContainsElementMatcher : MatcherBase<std::vector<T, Alloc>> {
ContainsElementMatcher(T const &comparator) : m_comparator( comparator) {}
bool match(std::vector<T> const &v) const override {
bool match(std::vector<T, Alloc> const &v) const override {
for (auto const& el : v) {
if (el == m_comparator) {
return true;
@ -38,12 +38,12 @@ namespace Matchers {
T const& m_comparator;
};
template<typename T>
struct ContainsMatcher : MatcherBase<std::vector<T>> {
template<typename T, typename AllocComp, typename AllocMatch>
struct ContainsMatcher : MatcherBase<std::vector<T, AllocMatch>> {
ContainsMatcher(std::vector<T> const &comparator) : m_comparator( comparator ) {}
ContainsMatcher(std::vector<T, AllocComp> const &comparator) : m_comparator( comparator ) {}
bool match(std::vector<T> const &v) const override {
bool match(std::vector<T, AllocMatch> const &v) const override {
// !TBD: see note in EqualsMatcher
if (m_comparator.size() > v.size())
return false;
@ -65,18 +65,18 @@ namespace Matchers {
return "Contains: " + ::Catch::Detail::stringify( m_comparator );
}
std::vector<T> const& m_comparator;
std::vector<T, AllocComp> const& m_comparator;
};
template<typename T>
struct EqualsMatcher : MatcherBase<std::vector<T>> {
template<typename T, typename AllocComp, typename AllocMatch>
struct EqualsMatcher : MatcherBase<std::vector<T, AllocMatch>> {
EqualsMatcher(std::vector<T> const &comparator) : m_comparator( comparator ) {}
EqualsMatcher(std::vector<T, AllocComp> const &comparator) : m_comparator( comparator ) {}
bool match(std::vector<T> const &v) const override {
bool match(std::vector<T, AllocMatch> const &v) const override {
// !TBD: This currently works if all elements can be compared using !=
// - a more general approach would be via a compare template that defaults
// to using !=. but could be specialised for, e.g. std::vector<T> etc
// to using !=. but could be specialised for, e.g. std::vector<T, Alloc> etc
// - then just call that directly
if (m_comparator.size() != v.size())
return false;
@ -88,15 +88,15 @@ namespace Matchers {
std::string describe() const override {
return "Equals: " + ::Catch::Detail::stringify( m_comparator );
}
std::vector<T> const& m_comparator;
std::vector<T, AllocComp> const& m_comparator;
};
template<typename T>
struct ApproxMatcher : MatcherBase<std::vector<T>> {
template<typename T, typename AllocComp, typename AllocMatch>
struct ApproxMatcher : MatcherBase<std::vector<T, AllocMatch>> {
ApproxMatcher(std::vector<T> const& comparator) : m_comparator( comparator ) {}
ApproxMatcher(std::vector<T, AllocComp> const& comparator) : m_comparator( comparator ) {}
bool match(std::vector<T> const &v) const override {
bool match(std::vector<T, AllocMatch> const &v) const override {
if (m_comparator.size() != v.size())
return false;
for (std::size_t i = 0; i < v.size(); ++i)
@ -123,14 +123,14 @@ namespace Matchers {
return *this;
}
std::vector<T> const& m_comparator;
std::vector<T, AllocComp> const& m_comparator;
mutable Catch::Detail::Approx approx = Catch::Detail::Approx::custom();
};
template<typename T>
struct UnorderedEqualsMatcher : MatcherBase<std::vector<T>> {
UnorderedEqualsMatcher(std::vector<T> const& target) : m_target(target) {}
bool match(std::vector<T> const& vec) const override {
template<typename T, typename AllocComp, typename AllocMatch>
struct UnorderedEqualsMatcher : MatcherBase<std::vector<T, AllocMatch>> {
UnorderedEqualsMatcher(std::vector<T, AllocComp> const& target) : m_target(target) {}
bool match(std::vector<T, AllocMatch> const& vec) const override {
// Note: This is a reimplementation of std::is_permutation,
// because I don't want to include <algorithm> inside the common path
if (m_target.size() != vec.size()) {
@ -143,7 +143,7 @@ namespace Matchers {
return "UnorderedEquals: " + ::Catch::Detail::stringify(m_target);
}
private:
std::vector<T> const& m_target;
std::vector<T, AllocComp> const& m_target;
};
} // namespace Vector
@ -151,29 +151,29 @@ namespace Matchers {
// The following functions create the actual matcher objects.
// This allows the types to be inferred
template<typename T>
Vector::ContainsMatcher<T> Contains( std::vector<T> const& comparator ) {
return Vector::ContainsMatcher<T>( comparator );
template<typename T, typename AllocComp, typename AllocMatch = AllocComp>
Vector::ContainsMatcher<T, AllocComp, AllocMatch> Contains( std::vector<T, AllocComp> const& comparator ) {
return Vector::ContainsMatcher<T, AllocComp, AllocMatch>( comparator );
}
template<typename T>
Vector::ContainsElementMatcher<T> VectorContains( T const& comparator ) {
return Vector::ContainsElementMatcher<T>( comparator );
template<typename T, typename Alloc = std::allocator<T>>
Vector::ContainsElementMatcher<T, Alloc> VectorContains( T const& comparator ) {
return Vector::ContainsElementMatcher<T, Alloc>( comparator );
}
template<typename T>
Vector::EqualsMatcher<T> Equals( std::vector<T> const& comparator ) {
return Vector::EqualsMatcher<T>( comparator );
template<typename T, typename AllocComp, typename AllocMatch = AllocComp>
Vector::EqualsMatcher<T, AllocComp, AllocMatch> Equals( std::vector<T, AllocComp> const& comparator ) {
return Vector::EqualsMatcher<T, AllocComp, AllocMatch>( comparator );
}
template<typename T>
Vector::ApproxMatcher<T> Approx( std::vector<T> const& comparator ) {
return Vector::ApproxMatcher<T>( comparator );
template<typename T, typename AllocComp, typename AllocMatch = AllocComp>
Vector::ApproxMatcher<T, AllocComp, AllocMatch> Approx( std::vector<T, AllocComp> const& comparator ) {
return Vector::ApproxMatcher<T, AllocComp, AllocMatch>( comparator );
}
template<typename T>
Vector::UnorderedEqualsMatcher<T> UnorderedEquals(std::vector<T> const& target) {
return Vector::UnorderedEqualsMatcher<T>(target);
template<typename T, typename AllocComp, typename AllocMatch = AllocComp>
Vector::UnorderedEqualsMatcher<T, AllocComp, AllocMatch> UnorderedEquals(std::vector<T, AllocComp> const& target) {
return Vector::UnorderedEqualsMatcher<T, AllocComp, AllocMatch>( target );
}
} // namespace Matchers

8
projects/SelfTest/Baselines/compact.sw.approved.txt
View File

@ -1531,18 +1531,26 @@ Matchers.tests.cpp:<line number>: failed: empty, Approx(t1) for: { } is approx:
Matchers.tests.cpp:<line number>: failed: v1, Approx(v2) for: { 2.0, 4.0, 6.0 } is approx: { 1.0, 3.0, 5.0 }
Matchers.tests.cpp:<line number>: passed: v, VectorContains(1) for: { 1, 2, 3 } Contains: 1
Matchers.tests.cpp:<line number>: passed: v, VectorContains(2) for: { 1, 2, 3 } Contains: 2
Matchers.tests.cpp:<line number>: passed: v5, (VectorContains<int, CustomAllocator<int>>(2)) for: { 1, 2, 3 } Contains: 2
Matchers.tests.cpp:<line number>: passed: v, Contains(v2) for: { 1, 2, 3 } Contains: { 1, 2 }
Matchers.tests.cpp:<line number>: passed: v5, (Contains<int, std::allocator<int>, CustomAllocator<int>>(v2)) for: { 1, 2, 3 } Contains: { 1, 2 }
Matchers.tests.cpp:<line number>: passed: v, Contains(v2) for: { 1, 2, 3 } Contains: { 1, 2, 3 }
Matchers.tests.cpp:<line number>: passed: v, Contains(empty) for: { 1, 2, 3 } Contains: { }
Matchers.tests.cpp:<line number>: passed: empty, Contains(empty) for: { } Contains: { }
Matchers.tests.cpp:<line number>: passed: v5, (Contains<int, std::allocator<int>, CustomAllocator<int>>(v2)) for: { 1, 2, 3 } Contains: { 1, 2, 3 }
Matchers.tests.cpp:<line number>: passed: v5, Contains(v6) for: { 1, 2, 3 } Contains: { 1, 2 }
Matchers.tests.cpp:<line number>: passed: v, VectorContains(1) && VectorContains(2) for: { 1, 2, 3 } ( Contains: 1 and Contains: 2 )
Matchers.tests.cpp:<line number>: passed: v, Equals(v) for: { 1, 2, 3 } Equals: { 1, 2, 3 }
Matchers.tests.cpp:<line number>: passed: empty, Equals(empty) for: { } Equals: { }
Matchers.tests.cpp:<line number>: passed: v, Equals(v2) for: { 1, 2, 3 } Equals: { 1, 2, 3 }
Matchers.tests.cpp:<line number>: passed: v5, (Equals<int, std::allocator<int>, CustomAllocator<int>>(v2)) for: { 1, 2, 3 } Equals: { 1, 2, 3 }
Matchers.tests.cpp:<line number>: passed: v5, Equals(v6) for: { 1, 2, 3 } Equals: { 1, 2, 3 }
Matchers.tests.cpp:<line number>: passed: v, UnorderedEquals(v) for: { 1, 2, 3 } UnorderedEquals: { 1, 2, 3 }
Matchers.tests.cpp:<line number>: passed: empty, UnorderedEquals(empty) for: { } UnorderedEquals: { }
Matchers.tests.cpp:<line number>: passed: permuted, UnorderedEquals(v) for: { 1, 3, 2 } UnorderedEquals: { 1, 2, 3 }
Matchers.tests.cpp:<line number>: passed: permuted, UnorderedEquals(v) for: { 2, 3, 1 } UnorderedEquals: { 1, 2, 3 }
Matchers.tests.cpp:<line number>: passed: v5, (UnorderedEquals<int, std::allocator<int>, CustomAllocator<int>>(permuted)) for: { 1, 2, 3 } UnorderedEquals: { 2, 3, 1 }
Matchers.tests.cpp:<line number>: passed: v5_permuted, UnorderedEquals(v5) for: { 1, 3, 2 } UnorderedEquals: { 1, 2, 3 }
Matchers.tests.cpp:<line number>: failed: v, VectorContains(-1) for: { 1, 2, 3 } Contains: -1
Matchers.tests.cpp:<line number>: failed: empty, VectorContains(1) for: { } Contains: 1
Matchers.tests.cpp:<line number>: failed: empty, Contains(v) for: { } Contains: { 1, 2, 3 }

2
projects/SelfTest/Baselines/console.std.approved.txt
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@ -1381,5 +1381,5 @@ due to unexpected exception with message:
===============================================================================
test cases: 308 | 234 passed | 70 failed | 4 failed as expected
assertions: 1680 | 1528 passed | 131 failed | 21 failed as expected
assertions: 1688 | 1536 passed | 131 failed | 21 failed as expected

42
projects/SelfTest/Baselines/console.sw.approved.txt
View File

@ -11204,6 +11204,11 @@ Matchers.tests.cpp:<line number>: PASSED:
with expansion:
{ 1, 2, 3 } Contains: 2
Matchers.tests.cpp:<line number>: PASSED:
CHECK_THAT( v5, (VectorContains<int, CustomAllocator<int>>(2)) )
with expansion:
{ 1, 2, 3 } Contains: 2
-------------------------------------------------------------------------------
Vector matchers
Contains (vector)
@ -11216,6 +11221,11 @@ Matchers.tests.cpp:<line number>: PASSED:
with expansion:
{ 1, 2, 3 } Contains: { 1, 2 }
Matchers.tests.cpp:<line number>: PASSED:
CHECK_THAT( v5, (Contains<int, std::allocator<int>, CustomAllocator<int>>(v2)) )
with expansion:
{ 1, 2, 3 } Contains: { 1, 2 }
Matchers.tests.cpp:<line number>: PASSED:
CHECK_THAT( v, Contains(v2) )
with expansion:
@ -11231,6 +11241,16 @@ Matchers.tests.cpp:<line number>: PASSED:
with expansion:
{ } Contains: { }
Matchers.tests.cpp:<line number>: PASSED:
CHECK_THAT( v5, (Contains<int, std::allocator<int>, CustomAllocator<int>>(v2)) )
with expansion:
{ 1, 2, 3 } Contains: { 1, 2, 3 }
Matchers.tests.cpp:<line number>: PASSED:
CHECK_THAT( v5, Contains(v6) )
with expansion:
{ 1, 2, 3 } Contains: { 1, 2 }
-------------------------------------------------------------------------------
Vector matchers
Contains (element), composed
@ -11265,6 +11285,16 @@ Matchers.tests.cpp:<line number>: PASSED:
with expansion:
{ 1, 2, 3 } Equals: { 1, 2, 3 }
Matchers.tests.cpp:<line number>: PASSED:
CHECK_THAT( v5, (Equals<int, std::allocator<int>, CustomAllocator<int>>(v2)) )
with expansion:
{ 1, 2, 3 } Equals: { 1, 2, 3 }
Matchers.tests.cpp:<line number>: PASSED:
CHECK_THAT( v5, Equals(v6) )
with expansion:
{ 1, 2, 3 } Equals: { 1, 2, 3 }
-------------------------------------------------------------------------------
Vector matchers
UnorderedEquals
@ -11292,6 +11322,16 @@ Matchers.tests.cpp:<line number>: PASSED:
with expansion:
{ 2, 3, 1 } UnorderedEquals: { 1, 2, 3 }
Matchers.tests.cpp:<line number>: PASSED:
CHECK_THAT( v5, (UnorderedEquals<int, std::allocator<int>, CustomAllocator<int>>(permuted)) )
with expansion:
{ 1, 2, 3 } UnorderedEquals: { 2, 3, 1 }
Matchers.tests.cpp:<line number>: PASSED:
CHECK_THAT( v5_permuted, UnorderedEquals(v5) )
with expansion:
{ 1, 3, 2 } UnorderedEquals: { 1, 2, 3 }
-------------------------------------------------------------------------------
Vector matchers that fail
Contains (element)
@ -13449,5 +13489,5 @@ Misc.tests.cpp:<line number>: PASSED:
===============================================================================
test cases: 308 | 218 passed | 86 failed | 4 failed as expected
assertions: 1697 | 1528 passed | 148 failed | 21 failed as expected
assertions: 1705 | 1536 passed | 148 failed | 21 failed as expected

2
projects/SelfTest/Baselines/junit.sw.approved.txt
View File

@ -1,7 +1,7 @@
<?xml version="1.0" encoding="UTF-8"?>
<testsuitesloose text artifact
>
<testsuite name="<exe-name>" errors="17" failures="132" tests="1698" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
<testsuite name="<exe-name>" errors="17" failures="132" tests="1706" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
<properties>
<property name="filters" value="~[!nonportable]~[!benchmark]~[approvals]"/>
<property name="random-seed" value="1"/>

76
projects/SelfTest/Baselines/xml.sw.approved.txt
View File

@ -13657,7 +13657,15 @@ There is no extra whitespace here
{ 1, 2, 3 } Contains: 2
</Expanded>
</Expression>
<OverallResults successes="2" failures="0" expectedFailures="0"/>
<Expression success="true" type="CHECK_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
v5, (VectorContains&lt;int, CustomAllocator&lt;int>>(2))
</Original>
<Expanded>
{ 1, 2, 3 } Contains: 2
</Expanded>
</Expression>
<OverallResults successes="3" failures="0" expectedFailures="0"/>
</Section>
<Section name="Contains (vector)" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Expression success="true" type="CHECK_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
@ -13668,6 +13676,14 @@ There is no extra whitespace here
{ 1, 2, 3 } Contains: { 1, 2 }
</Expanded>
</Expression>
<Expression success="true" type="CHECK_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
v5, (Contains&lt;int, std::allocator&lt;int>, CustomAllocator&lt;int>>(v2))
</Original>
<Expanded>
{ 1, 2, 3 } Contains: { 1, 2 }
</Expanded>
</Expression>
<Expression success="true" type="CHECK_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
v, Contains(v2)
@ -13692,7 +13708,23 @@ There is no extra whitespace here
{ } Contains: { }
</Expanded>
</Expression>
<OverallResults successes="4" failures="0" expectedFailures="0"/>
<Expression success="true" type="CHECK_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
v5, (Contains&lt;int, std::allocator&lt;int>, CustomAllocator&lt;int>>(v2))
</Original>
<Expanded>
{ 1, 2, 3 } Contains: { 1, 2, 3 }
</Expanded>
</Expression>
<Expression success="true" type="CHECK_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
v5, Contains(v6)
</Original>
<Expanded>
{ 1, 2, 3 } Contains: { 1, 2 }
</Expanded>
</Expression>
<OverallResults successes="7" failures="0" expectedFailures="0"/>
</Section>
<Section name="Contains (element), composed" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Expression success="true" type="CHECK_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
@ -13730,7 +13762,23 @@ There is no extra whitespace here
{ 1, 2, 3 } Equals: { 1, 2, 3 }
</Expanded>
</Expression>
<OverallResults successes="3" failures="0" expectedFailures="0"/>
<Expression success="true" type="CHECK_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
v5, (Equals&lt;int, std::allocator&lt;int>, CustomAllocator&lt;int>>(v2))
</Original>
<Expanded>
{ 1, 2, 3 } Equals: { 1, 2, 3 }
</Expanded>
</Expression>
<Expression success="true" type="CHECK_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
v5, Equals(v6)
</Original>
<Expanded>
{ 1, 2, 3 } Equals: { 1, 2, 3 }
</Expanded>
</Expression>
<OverallResults successes="5" failures="0" expectedFailures="0"/>
</Section>
<Section name="UnorderedEquals" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Expression success="true" type="CHECK_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
@ -13765,7 +13813,23 @@ There is no extra whitespace here
{ 2, 3, 1 } UnorderedEquals: { 1, 2, 3 }
</Expanded>
</Expression>
<OverallResults successes="4" failures="0" expectedFailures="0"/>
<Expression success="true" type="CHECK_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
v5, (UnorderedEquals&lt;int, std::allocator&lt;int>, CustomAllocator&lt;int>>(permuted))
</Original>
<Expanded>
{ 1, 2, 3 } UnorderedEquals: { 2, 3, 1 }
</Expanded>
</Expression>
<Expression success="true" type="CHECK_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
v5_permuted, UnorderedEquals(v5)
</Original>
<Expanded>
{ 1, 3, 2 } UnorderedEquals: { 1, 2, 3 }
</Expanded>
</Expression>
<OverallResults successes="6" failures="0" expectedFailures="0"/>
</Section>
<OverallResult success="true"/>
</TestCase>
@ -16075,7 +16139,7 @@ loose text artifact
</Section>
<OverallResult success="true"/>
</TestCase>
<OverallResults successes="1528" failures="149" expectedFailures="21"/>
<OverallResults successes="1536" failures="149" expectedFailures="21"/>
</Group>
<OverallResults successes="1528" failures="148" expectedFailures="21"/>
<OverallResults successes="1536" failures="148" expectedFailures="21"/>
</Catch>

62
projects/SelfTest/UsageTests/Matchers.tests.cpp
View File

@ -214,6 +214,42 @@ namespace { namespace MatchersTests {
CHECK_THAT(testStringForMatching(), !Contains("substring"));
}
template<typename T>
struct CustomAllocator : private std::allocator<T>
{
using size_type = size_t;
using difference_type = ptrdiff_t;
using pointer = T*;
using const_pointer = const T*;
using reference = T&;
using const_reference = const T&;
using value_type = T;
template<typename U>
struct rebind
{ using other = CustomAllocator<U>; };
using propagate_on_container_move_assignment = std::true_type;
using is_always_equal = std::true_type;
CustomAllocator() = default;
CustomAllocator(const CustomAllocator& other)
: std::allocator<T>(other) { }
template<typename U>
CustomAllocator(const CustomAllocator<U>&) { }
~CustomAllocator() = default;
using std::allocator<T>::address;
using std::allocator<T>::allocate;
using std::allocator<T>::construct;
using std::allocator<T>::deallocate;
using std::allocator<T>::max_size;
using std::allocator<T>::destroy;
};
TEST_CASE("Vector matchers", "[matchers][vector]") {
std::vector<int> v;
v.push_back(1);
@ -234,19 +270,34 @@ namespace { namespace MatchersTests {
v4.push_back(2 + 1e-8);
v4.push_back(3 + 1e-8);
std::vector<int, CustomAllocator<int>> v5;
v5.push_back(1);
v5.push_back(2);
v5.push_back(3);
std::vector<int, CustomAllocator<int>> v6;
v6.push_back(1);
v6.push_back(2);
std::vector<int> empty;
SECTION("Contains (element)") {
CHECK_THAT(v, VectorContains(1));
CHECK_THAT(v, VectorContains(2));
CHECK_THAT(v5, (VectorContains<int, CustomAllocator<int>>(2)));
}
SECTION("Contains (vector)") {
CHECK_THAT(v, Contains(v2));
CHECK_THAT(v5, (Contains<int, std::allocator<int>, CustomAllocator<int>>(v2)));
v2.push_back(3); // now exactly matches
CHECK_THAT(v, Contains(v2));
CHECK_THAT(v, Contains(empty));
CHECK_THAT(empty, Contains(empty));
CHECK_THAT(v5, (Contains<int, std::allocator<int>, CustomAllocator<int>>(v2)));
CHECK_THAT(v5, Contains(v6));
}
SECTION("Contains (element), composed") {
CHECK_THAT(v, VectorContains(1) && VectorContains(2));
@ -262,6 +313,11 @@ namespace { namespace MatchersTests {
// Different vector with same elements
v2.push_back(3);
CHECK_THAT(v, Equals(v2));
CHECK_THAT(v5, (Equals<int, std::allocator<int>, CustomAllocator<int>>(v2)));
v6.push_back(3);
CHECK_THAT(v5, Equals(v6));
}
SECTION("UnorderedEquals") {
CHECK_THAT(v, UnorderedEquals(v));
@ -273,6 +329,12 @@ namespace { namespace MatchersTests {
std::reverse(begin(permuted), end(permuted));
REQUIRE_THAT(permuted, UnorderedEquals(v));
CHECK_THAT(v5, (UnorderedEquals<int, std::allocator<int>, CustomAllocator<int>>(permuted)));
auto v5_permuted = v5;
std::next_permutation(begin(v5_permuted), end(v5_permuted));
CHECK_THAT(v5_permuted, UnorderedEquals(v5));
}
}