可以使用多個不同類型的參數匹配mbUnit的靈活性，Googletest value-parameterized參數化嗎？

Question

我想編寫C++ Google測試，它可以使用value-parameterized tests以及不同數據類型的多個參數，理想地匹配以C++/CLI編寫的以下mbUnit測試的複雜性。

請注意這是多麼緊湊，[Test]屬性指示這是測試方法和[Row(...)]屬性定義實例的值。

[Test] 
[Row("Empty.mdb", "select count(*) from collar", 0)] 
[Row("SomeCollars.mdb", "select count(*) from collar", 17)] 
[Row("SomeCollars.mdb", "select count(*) from collar where max_depth=100", 4)] 
void CountViaDirectSQLCommand(String^ dbname, String^ command, int numRecs) 
{ 
    String^ dbFilePath = testDBFullPath(dbname); 
    { 
     StAnsi fpath(dbFilePath); 
     StGdbConnection db(fpath); 
     db->Connect(fpath); 
     int result = db->ExecuteSQLReturningScalar(StAnsi(command)); 
     Assert::AreEqual(numRecs, result); 
    } 
} 

甚至更​​好，從C＃這更奇特的測試（推什麼可以在.net中被定義的邊界屬性，超出了在C++/CLI是可能的）：

[Test] 
[Row("SomeCollars.mdb", "update collar set x=0.003 where hole_id='WD004'", "WD004", 
    new string[] { "x", "y" }, 
    new double[] { 0.003, 7362.082 })] // y value unchanged 
[Row("SomeCollars.mdb", "update collar set x=1724.8, y=6000 where hole_id='WD004'", "WD004", 
    new string[] { "x", "y" }, 
    new double[] { 1724.8, 6000.0 })] 
public void UpdateSingleRowByKey(string dbname, string command, string idValue, string[] fields, double[] values) 
{ 
... 
} 

的help說：值參數化測試可以讓您只編寫一次測試，然後輕鬆實例化並使用任意數量的參數值運行測試。但我相當確定是指測試用例的數量。

即使沒有改變數據類型，在我看來參數化測試只能採取一個參數？

Answer 1

是的，只有一個參數。不過，您可以使該參數變得任意複雜。你可以從你的文檔適應代碼，使用你類型，例如：

class AndyTest : public ::testing::TestWithParam<Row> { 
    // You can implement all the usual fixture class members here. 
    // To access the test parameter, call GetParam() from class 
    // TestWithParam<T>. 
}; 

然後定義您的參數測試：

TEST_P(AndyTest, CountViaDirectSQLCommand) 
{ 
    // Call GetParam() here to get the Row values 
    Row const& p = GetParam(); 
    std::string dbFilePath = testDBFullPath(p.dbname); 
    { 
    StAnsi fpath(dbFilePath); 
    StGdbConnection db(p.fpath); 
    db.Connect(p.fpath); 
    int result = db.ExecuteSQLReturningScalar(StAnsi(p.command)); 
    EXPECT_EQ(p.numRecs, result); 
    } 
} 

最後，實例化它：

INSTANTIATE_TEST_CASE_P(InstantiationName, AndyTest, ::testing::Values(
    Row("Empty.mdb", "select count(*) from collar", 0), 
    Row("SomeCollars.mdb", "select count(*) from collar", 17), 
    Row("SomeCollars.mdb", "select count(*) from collar where max_depth=100", 4) 
));