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Added a vector approximate matcher

This commit is contained in:
Will Handley 2019-01-14 14:31:09 +00:00 committed by Martin Hořeňovský
parent 45e552528d
commit 91b617c462
7 changed files with 350 additions and 8 deletions
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42
include/internal/catch_matchers_vector.h
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@ -9,6 +9,7 @@
#define TWOBLUECUBES_CATCH_MATCHERS_VECTOR_H_INCLUDED
#include "catch_matchers.h"
#include "catch_approx.h"
#include <algorithm>
@ -90,6 +91,42 @@ namespace Matchers {
std::vector<T> const& m_comparator;
};
template<typename T>
struct ApproxMatcher : MatcherBase<std::vector<T>> {
ApproxMatcher(std::vector<T> const& comparator) : m_comparator( comparator ) {}
bool match(std::vector<T> const &v) const override {
if (m_comparator.size() != v.size())
return false;
for (std::size_t i = 0; i < v.size(); ++i)
if (m_comparator[i] != approx(v[i]))
return false;
return true;
}
std::string describe() const override {
return "is approx: " + ::Catch::Detail::stringify( m_comparator );
}
template <typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
ApproxMatcher& epsilon( T const& newEpsilon ) {
approx.epsilon(newEpsilon);
return *this;
}
template <typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
ApproxMatcher& margin( T const& newMargin ) {
approx.margin(newMargin);
return *this;
}
template <typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
ApproxMatcher& scale( T const& newScale ) {
approx.scale(newScale);
return *this;
}
std::vector<T> 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) {}
@ -129,6 +166,11 @@ namespace Matchers {
return Vector::EqualsMatcher<T>( comparator );
}
template<typename T>
Vector::ApproxMatcher<T> Approx( std::vector<T> const& comparator ) {
return Vector::ApproxMatcher<T>( comparator );
}
template<typename T>
Vector::UnorderedEqualsMatcher<T> UnorderedEquals(std::vector<T> const& target) {
return Vector::UnorderedEqualsMatcher<T>(target);

11
projects/SelfTest/Baselines/compact.sw.approved.txt
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@ -1189,6 +1189,15 @@ Approx.tests.cpp:<line number>: passed: approx( d ) == 1.22 for: Approx( 1.23 )
Approx.tests.cpp:<line number>: passed: approx( d ) == 1.24 for: Approx( 1.23 ) == 1.24
Approx.tests.cpp:<line number>: passed: approx( d ) != 1.25 for: Approx( 1.23 ) != 1.25
VariadicMacros.tests.cpp:<line number>: passed: with 1 message: 'no assertions'
Matchers.tests.cpp:<line number>: passed: empty, Approx(empty) for: { } is approx: { }
Matchers.tests.cpp:<line number>: passed: v1, Approx(v1) for: { 1.0, 2.0, 3.0 } is approx: { 1.0, 2.0, 3.0 }
Matchers.tests.cpp:<line number>: passed: v1, !Approx(temp) for: { 1.0, 2.0, 3.0 } not is approx: { 1.0, 2.0, 3.0, 4.0 }
Matchers.tests.cpp:<line number>: passed: v1, !Approx(v2) for: { 1.0, 2.0, 3.0 } not is approx: { 1.5, 2.5, 3.5 }
Matchers.tests.cpp:<line number>: passed: v1, Approx(v2).margin(0.5) for: { 1.0, 2.0, 3.0 } is approx: { 1.5, 2.5, 3.5 }
Matchers.tests.cpp:<line number>: passed: v1, Approx(v2).epsilon(0.5) for: { 1.0, 2.0, 3.0 } is approx: { 1.5, 2.5, 3.5 }
Matchers.tests.cpp:<line number>: passed: v1, Approx(v2).epsilon(0.1).scale(500) for: { 1.0, 2.0, 3.0 } is approx: { 1.5, 2.5, 3.5 }
Matchers.tests.cpp:<line number>: failed: empty, Approx(t1) for: { } is approx: { 1.0, 2.0 }
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: v, Contains(v2) for: { 1, 2, 3 } Contains: { 1, 2 }
@ -1505,5 +1514,5 @@ Misc.tests.cpp:<line number>: passed: v.size() == 5 for: 5 == 5
Misc.tests.cpp:<line number>: passed: v.capacity() >= 5 for: 5 >= 5
Misc.tests.cpp:<line number>: passed:
Misc.tests.cpp:<line number>: passed:
Failed 78 test cases, failed 139 assertions.
Failed 79 test cases, failed 141 assertions.

28
projects/SelfTest/Baselines/console.std.approved.txt
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@ -861,6 +861,30 @@ Exception.tests.cpp:<line number>: FAILED:
due to unexpected exception with message:
3.14
-------------------------------------------------------------------------------
Vector Approx matcher -- failing
Empty and non empty vectors are not approx equal
-------------------------------------------------------------------------------
Matchers.tests.cpp:<line number>
...............................................................................
Matchers.tests.cpp:<line number>: FAILED:
CHECK_THAT( empty, Approx(t1) )
with expansion:
{ } is approx: { 1.0, 2.0 }
-------------------------------------------------------------------------------
Vector Approx matcher -- failing
Just different vectors
-------------------------------------------------------------------------------
Matchers.tests.cpp:<line number>
...............................................................................
Matchers.tests.cpp:<line number>: FAILED:
CHECK_THAT( v1, Approx(v2) )
with expansion:
{ 2.0, 4.0, 6.0 } is approx: { 1.0, 3.0, 5.0 }
-------------------------------------------------------------------------------
Vector matchers that fail
Contains (element)
@ -1275,6 +1299,6 @@ due to unexpected exception with message:
Why would you throw a std::string?
===============================================================================
test cases: 258 | 192 passed | 62 failed | 4 failed as expected
assertions: 1419 | 1276 passed | 122 failed | 21 failed as expected
test cases: 260 | 193 passed | 63 failed | 4 failed as expected
assertions: 1428 | 1283 passed | 124 failed | 21 failed as expected

94
projects/SelfTest/Baselines/console.sw.approved.txt
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@ -8720,6 +8720,96 @@ VariadicMacros.tests.cpp:<line number>: PASSED:
with message:
no assertions
-------------------------------------------------------------------------------
Vector Approx matcher
Empty vector is roughly equal to an empty vector
-------------------------------------------------------------------------------
Matchers.tests.cpp:<line number>
...............................................................................
Matchers.tests.cpp:<line number>: PASSED:
REQUIRE_THAT( empty, Approx(empty) )
with expansion:
{ } is approx: { }
-------------------------------------------------------------------------------
Vector Approx matcher
Vectors with elements
A vector is approx equal to itself
-------------------------------------------------------------------------------
Matchers.tests.cpp:<line number>
...............................................................................
Matchers.tests.cpp:<line number>: PASSED:
REQUIRE_THAT( v1, Approx(v1) )
with expansion:
{ 1.0, 2.0, 3.0 } is approx: { 1.0, 2.0, 3.0 }
-------------------------------------------------------------------------------
Vector Approx matcher
Vectors with elements
Different length
-------------------------------------------------------------------------------
Matchers.tests.cpp:<line number>
...............................................................................
Matchers.tests.cpp:<line number>: PASSED:
REQUIRE_THAT( v1, !Approx(temp) )
with expansion:
{ 1.0, 2.0, 3.0 } not is approx: { 1.0, 2.0, 3.0, 4.0 }
-------------------------------------------------------------------------------
Vector Approx matcher
Vectors with elements
Same length, different elements
-------------------------------------------------------------------------------
Matchers.tests.cpp:<line number>
...............................................................................
Matchers.tests.cpp:<line number>: PASSED:
REQUIRE_THAT( v1, !Approx(v2) )
with expansion:
{ 1.0, 2.0, 3.0 } not is approx: { 1.5, 2.5, 3.5 }
Matchers.tests.cpp:<line number>: PASSED:
REQUIRE_THAT( v1, Approx(v2).margin(0.5) )
with expansion:
{ 1.0, 2.0, 3.0 } is approx: { 1.5, 2.5, 3.5 }
Matchers.tests.cpp:<line number>: PASSED:
REQUIRE_THAT( v1, Approx(v2).epsilon(0.5) )
with expansion:
{ 1.0, 2.0, 3.0 } is approx: { 1.5, 2.5, 3.5 }
Matchers.tests.cpp:<line number>: PASSED:
REQUIRE_THAT( v1, Approx(v2).epsilon(0.1).scale(500) )
with expansion:
{ 1.0, 2.0, 3.0 } is approx: { 1.5, 2.5, 3.5 }
-------------------------------------------------------------------------------
Vector Approx matcher -- failing
Empty and non empty vectors are not approx equal
-------------------------------------------------------------------------------
Matchers.tests.cpp:<line number>
...............................................................................
Matchers.tests.cpp:<line number>: FAILED:
CHECK_THAT( empty, Approx(t1) )
with expansion:
{ } is approx: { 1.0, 2.0 }
-------------------------------------------------------------------------------
Vector Approx matcher -- failing
Just different vectors
-------------------------------------------------------------------------------
Matchers.tests.cpp:<line number>
...............................................................................
Matchers.tests.cpp:<line number>: FAILED:
CHECK_THAT( v1, Approx(v2) )
with expansion:
{ 2.0, 4.0, 6.0 } is approx: { 1.0, 3.0, 5.0 }
-------------------------------------------------------------------------------
Vector matchers
Contains (element)
@ -11128,6 +11218,6 @@ Misc.tests.cpp:<line number>
Misc.tests.cpp:<line number>: PASSED:
===============================================================================
test cases: 258 | 176 passed | 78 failed | 4 failed as expected
assertions: 1436 | 1276 passed | 139 failed | 21 failed as expected
test cases: 260 | 177 passed | 79 failed | 4 failed as expected
assertions: 1445 | 1283 passed | 141 failed | 21 failed as expected

16
projects/SelfTest/Baselines/junit.sw.approved.txt
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@ -1,7 +1,7 @@
<?xml version="1.0" encoding="UTF-8"?>
<testsuitesloose text artifact
>
<testsuite name="<exe-name>" errors="17" failures="123" tests="1437" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
<testsuite name="<exe-name>" errors="17" failures="125" tests="1446" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
<properties>
<property name="filters" value="~[!nonportable]~[!benchmark]~[approvals]"/>
<property name="random-seed" value="1"/>
@ -741,6 +741,20 @@ Exception.tests.cpp:<line number>
</testcase>
<testcase classname="<exe-name>.global" name="Use a custom approx" time="{duration}"/>
<testcase classname="<exe-name>.global" name="Variadic macros/Section with one argument" time="{duration}"/>
<testcase classname="<exe-name>.global" name="Vector Approx matcher/Empty vector is roughly equal to an empty vector" time="{duration}"/>
<testcase classname="<exe-name>.global" name="Vector Approx matcher/Vectors with elements/A vector is approx equal to itself" time="{duration}"/>
<testcase classname="<exe-name>.global" name="Vector Approx matcher/Vectors with elements/Different length" time="{duration}"/>
<testcase classname="<exe-name>.global" name="Vector Approx matcher/Vectors with elements/Same length, different elements" time="{duration}"/>
<testcase classname="<exe-name>.global" name="Vector Approx matcher -- failing/Empty and non empty vectors are not approx equal" time="{duration}">
<failure message="{ } is approx: { 1.0, 2.0 }" type="CHECK_THAT">
Matchers.tests.cpp:<line number>
</failure>
</testcase>
<testcase classname="<exe-name>.global" name="Vector Approx matcher -- failing/Just different vectors" time="{duration}">
<failure message="{ 2.0, 4.0, 6.0 } is approx: { 1.0, 3.0, 5.0 }" type="CHECK_THAT">
Matchers.tests.cpp:<line number>
</failure>
</testcase>
<testcase classname="<exe-name>.global" name="Vector matchers/Contains (element)" time="{duration}"/>
<testcase classname="<exe-name>.global" name="Vector matchers/Contains (vector)" time="{duration}"/>
<testcase classname="<exe-name>.global" name="Vector matchers/Contains (element), composed" time="{duration}"/>

109
projects/SelfTest/Baselines/xml.sw.approved.txt
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@ -10713,6 +10713,111 @@ Message from section two
</Section>
<OverallResult success="true"/>
</TestCase>
<TestCase name="Vector Approx matcher" tags="[approx][matchers][vector]" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Section name="Empty vector is roughly equal to an empty vector" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Expression success="true" type="REQUIRE_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
empty, Approx(empty)
</Original>
<Expanded>
{ } is approx: { }
</Expanded>
</Expression>
<OverallResults successes="1" failures="0" expectedFailures="0"/>
</Section>
<Section name="Vectors with elements" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Section name="A vector is approx equal to itself" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Expression success="true" type="REQUIRE_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
v1, Approx(v1)
</Original>
<Expanded>
{ 1.0, 2.0, 3.0 } is approx: { 1.0, 2.0, 3.0 }
</Expanded>
</Expression>
<OverallResults successes="1" failures="0" expectedFailures="0"/>
</Section>
<OverallResults successes="1" failures="0" expectedFailures="0"/>
</Section>
<Section name="Vectors with elements" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Section name="Different length" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Expression success="true" type="REQUIRE_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
v1, !Approx(temp)
</Original>
<Expanded>
{ 1.0, 2.0, 3.0 } not is approx: { 1.0, 2.0, 3.0, 4.0 }
</Expanded>
</Expression>
<OverallResults successes="1" failures="0" expectedFailures="0"/>
</Section>
<OverallResults successes="1" failures="0" expectedFailures="0"/>
</Section>
<Section name="Vectors with elements" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Section name="Same length, different elements" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Expression success="true" type="REQUIRE_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
v1, !Approx(v2)
</Original>
<Expanded>
{ 1.0, 2.0, 3.0 } not is approx: { 1.5, 2.5, 3.5 }
</Expanded>
</Expression>
<Expression success="true" type="REQUIRE_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
v1, Approx(v2).margin(0.5)
</Original>
<Expanded>
{ 1.0, 2.0, 3.0 } is approx: { 1.5, 2.5, 3.5 }
</Expanded>
</Expression>
<Expression success="true" type="REQUIRE_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
v1, Approx(v2).epsilon(0.5)
</Original>
<Expanded>
{ 1.0, 2.0, 3.0 } is approx: { 1.5, 2.5, 3.5 }
</Expanded>
</Expression>
<Expression success="true" type="REQUIRE_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
v1, Approx(v2).epsilon(0.1).scale(500)
</Original>
<Expanded>
{ 1.0, 2.0, 3.0 } is approx: { 1.5, 2.5, 3.5 }
</Expanded>
</Expression>
<OverallResults successes="4" failures="0" expectedFailures="0"/>
</Section>
<OverallResults successes="4" failures="0" expectedFailures="0"/>
</Section>
<OverallResult success="true"/>
</TestCase>
<TestCase name="Vector Approx matcher -- failing" tags="[.][approx][failing][matchers][vector]" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Section name="Empty and non empty vectors are not approx equal" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Expression success="false" type="CHECK_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
empty, Approx(t1)
</Original>
<Expanded>
{ } is approx: { 1.0, 2.0 }
</Expanded>
</Expression>
<OverallResults successes="0" failures="1" expectedFailures="0"/>
</Section>
<Section name="Just different vectors" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Expression success="false" type="CHECK_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Original>
v1, Approx(v2)
</Original>
<Expanded>
{ 2.0, 4.0, 6.0 } is approx: { 1.0, 3.0, 5.0 }
</Expanded>
</Expression>
<OverallResults successes="0" failures="1" expectedFailures="0"/>
</Section>
<OverallResult success="false"/>
</TestCase>
<TestCase name="Vector matchers" tags="[matchers][vector]" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Section name="Contains (element)" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
<Expression success="true" type="CHECK_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
@ -13399,7 +13504,7 @@ loose text artifact
</Section>
<OverallResult success="true"/>
</TestCase>
<OverallResults successes="1276" failures="140" expectedFailures="21"/>
<OverallResults successes="1283" failures="142" expectedFailures="21"/>
</Group>
<OverallResults successes="1276" failures="139" expectedFailures="21"/>
<OverallResults successes="1283" failures="141" expectedFailures="21"/>
</Catch>

58
projects/SelfTest/UsageTests/Matchers.tests.cpp
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@ -213,6 +213,16 @@ namespace { namespace MatchersTests {
v2.push_back(1);
v2.push_back(2);
std::vector<double> v3;
v3.push_back(1);
v3.push_back(2);
v3.push_back(3);
std::vector<double> v4;
v4.push_back(1 + 1e-8);
v4.push_back(2 + 1e-8);
v4.push_back(3 + 1e-8);
std::vector<int> empty;
SECTION("Contains (element)") {
@ -265,6 +275,16 @@ namespace { namespace MatchersTests {
v2.push_back(1);
v2.push_back(2);
std::vector<double> v3;
v3.push_back(1);
v3.push_back(2);
v3.push_back(3);
std::vector<double> v4;
v4.push_back(1.1);
v4.push_back(2.1);
v4.push_back(3.1);
std::vector<int> empty;
SECTION("Contains (element)") {
@ -436,6 +456,44 @@ namespace { namespace MatchersTests {
REQUIRE_THAT("foo", Predicate<const char*>([] (const char* const&) { return true; }));
}
TEST_CASE("Vector Approx matcher", "[matchers][approx][vector]") {
using Catch::Matchers::Approx;
SECTION("Empty vector is roughly equal to an empty vector") {
std::vector<double> empty;
REQUIRE_THAT(empty, Approx(empty));
}
SECTION("Vectors with elements") {
std::vector<double> v1({1., 2., 3.});
SECTION("A vector is approx equal to itself") {
REQUIRE_THAT(v1, Approx(v1));
}
std::vector<double> v2({1.5, 2.5, 3.5});
SECTION("Different length") {
auto temp(v1);
temp.push_back(4);
REQUIRE_THAT(v1, !Approx(temp));
}
SECTION("Same length, different elements") {
REQUIRE_THAT(v1, !Approx(v2));
REQUIRE_THAT(v1, Approx(v2).margin(0.5));
REQUIRE_THAT(v1, Approx(v2).epsilon(0.5));
REQUIRE_THAT(v1, Approx(v2).epsilon(0.1).scale(500));
}
}
}
TEST_CASE("Vector Approx matcher -- failing", "[matchers][approx][vector][.failing]") {
using Catch::Matchers::Approx;
SECTION("Empty and non empty vectors are not approx equal") {
std::vector<double> empty, t1({1, 2});
CHECK_THAT(empty, Approx(t1));
}
SECTION("Just different vectors") {
std::vector<double> v1({2., 4., 6.}), v2({1., 3., 5.});
CHECK_THAT(v1, Approx(v2));
}
}
} } // namespace MatchersTests
#endif // CATCH_CONFIG_DISABLE_MATCHERS