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Part III: First tests
Posted: Mon Oct 15, 2012 12:55 am
by bbguimaraes
cxxtest
Code
Code: Select all
#include <cxxtest/TestSuite.h>
using CxxTest::TestSuite;
int sum(int n1, int n2) {
return 3;
}
class Test : public CxxTest::TestSuite {
public:
void test1plus2() {
TS_ASSERT_EQUALS(sum(1, 2), 3);
}
void test2plus2() {
TS_ASSERT_EQUALS(sum(2, 2), 4);
}
};
Code: Select all
Running 2 tests.
In Test::test2plus2:
Test.h:15: Error: Expected (sum(2, 2) == 4), found (3 != 4)
Failed 1 of 2 tests
Success rate: 50%
Part IV: Fixtures
Posted: Sun Oct 28, 2012 11:09 pm
by bbguimaraes
The last fundamental element we need to test before starting some useful testing is fixtures. They allow tests to share data, making it much easier to write many tests that depend on the same set of values. Some important things to look for is the ability to create objects on the stack, the ability to assign specific fixtures to specific tests and the amount of overhead required, both in code and on execution.
Index:
Part IV: Fixtures
Posted: Sun Oct 28, 2012 11:10 pm
by bbguimaraes
boost::test
Code
Code: Select all
#define BOOST_TEST_MODULE Test
#include <boost/test/unit_test.hpp>
struct SumFixture {
SumFixture() :
N(5),
VALUES_1{ 0, 2, 4, 6, 8 },
VALUES_2{ 1, 3, 5, 7, 9 },
RESULTS{ 1, 5, 9, 13, 17 }
{}
const unsigned int N;
const int VALUES_1[5];
const int VALUES_2[5];
const int RESULTS[5];
};
int sum(int n1, int n2) {
return n1 + n2;
}
BOOST_FIXTURE_TEST_CASE(TestSum, SumFixture) {
for(unsigned int i = 0; i < N; ++i)
BOOST_CHECK_EQUAL(sum(VALUES_1[i], VALUES_2[i]), RESULTS[i]);
}
Part IV: Fixtures
Posted: Sun Oct 28, 2012 11:12 pm
by bbguimaraes
QtTest
Code
Code: Select all
#include <QtTest/QtTest>
int sum(int n1, int n2) {
return n1 + n2;
}
class TestSum : public QObject {
Q_OBJECT
private slots:
void testSum_data() {
QTest::addColumn<int>("value1");
QTest::addColumn<int>("value2");
QTest::addColumn<int>("result");
QTest::newRow("0") << 0 << 1 << 1;
QTest::newRow("1") << 2 << 3 << 5;
QTest::newRow("2") << 4 << 5 << 9;
QTest::newRow("3") << 6 << 7 << 13;
QTest::newRow("4") << 8 << 9 << 17;
}
void testSum() {
QFETCH(int, value1);
QFETCH(int, value2);
QFETCH(int, result);
QCOMPARE(sum(value1, value2), result);
}
};
QTEST_MAIN(TestSum)
#include <main.moc>
Part IV: Fixtures
Posted: Sun Oct 28, 2012 11:14 pm
by bbguimaraes
googletest
Code
Code: Select all
#include <gtest/gtest.h>
class SumFixture : public testing::Test {
public:
SumFixture() :
N(5),
VALUES_1{0, 2, 4, 6, 8},
VALUES_2{1, 3, 5, 7, 9},
RESULTS{1, 5, 9, 13, 17}
{}
protected:
const unsigned int N;
const int VALUES_1[5];
const int VALUES_2[5];
const int RESULTS[5];
};
int sum(int n1, int n2) {
return n1 + n2;
}
TEST_F(SumFixture, TestSum) {
for(unsigned int i = 0; i < N; ++i)
ASSERT_EQ(RESULTS[i], sum(VALUES_1[i], VALUES_2[i]));
}