C ++ Catch是否具有类似NUnit的TestCase以及多个参数/输入选项

时间:2017-07-11 14:31:00

标签: c++ unit-testing catch-unit-test

NUnit具有以下功能,您可以使用TestCase属性为测试指定不同的值。 Catch有类似的东西吗?

[TestCase(12,3,4)]
[TestCase(12,2,6)]
[TestCase(12,4,3)]
public void DivideTest(int n, int d, int q)
{
  Assert.AreEqual( q, n / d );
}

我需要使用不同的数据值运行相同的单元测试,但每个都是不同的单元测试。我可以复制/粘贴TEST_CASE / SECTION并更改值,但有一种干净的方法可以像NUnit那样做。

我发现很难找到要搜索的内容。 Catch使用TEST_CASE进行单元测试,该测试与NUnit调用TestCase完全不同。

1 个答案:

答案 0 :(得分:2)

我找不到相同的内容,但根本不需要复制和粘贴所有内容:

#include "catch.hpp"

// A test function which we are going to call in the test cases
void testDivision(int n, int d, int q)
{
  // we intend to run this multiple times and count the errors independently
  // so we use CHECK rather than REQUIRE
  CHECK( q == n / d );
}

TEST_CASE( "Divisions with sections", "[divide]" ) {
  // This is more cumbersome but it will work better
  // if we need to use REQUIRE in our test function
  SECTION("by three") {
    testDivision(12, 3, 4);
  }
  SECTION("by four") {
    testDivision(12, 4, 3);
  }
  SECTION("by two") {
    testDivision(12, 2, 7); // wrong!
  }
  SECTION("by six") {
    testDivision(12, 6, 2);
  }
}

TEST_CASE( "Division without Sections", "[divide]" ) {
  testDivision(12, 3, 4);
  testDivision(12, 4, 3);
  testDivision(12, 2, 7); // oops...
  testDivision(12, 6, 2); // this would not execute because
                          // of previous failing REQUIRE had we used that
}

TEST_CASE ("Division with loop", "[divide]")
{
  struct {
    int n;
    int d;
    int q;
  } test_cases[] = {{12,3,4}, {12,4,3}, {12,2,7},
                    {12,6,2}};
  for(auto &test_case : test_cases) {
    testDivision(test_case.n, test_case.d, test_case.q);
  }
}