C＃單元測試。 並非所有路徑都返回值

Question

我正在編寫一組簡單的單元測試。 在此特定測試中，我正在測試該函數的所有標准文本輸入。

但是，當我嘗試編譯時，會收到此錯誤

ConverterTests.ConvertSixteenthsFractionalToDecimal_AverageCase（）'：並非所有代碼路徑都返回值

我應該更改什么來解決此編譯錯誤？

這是代碼：

        [TestMethod]
        public double ConvertSixteenthsFractionalToDecimal_AverageCase()
        {
            // arrange
            string input = "1/16";
            int expected = 1;
            // act
            int actual = clsDimension.CvtSixteenthsFractionalToDecimal(input);
            // assert
            Assert.AreEqual(expected, actual);

            // arrange
            input = "1/8";
            expected = 2;
            // act
            actual = clsDimension.CvtSixteenthsFractionalToDecimal(input);
            // assert
            Assert.AreEqual(expected, actual);


            // arrange
            input = "3/16";
            expected = 3;
            // act
            actual = clsDimension.CvtSixteenthsFractionalToDecimal(input);
            // assert
            Assert.AreEqual(expected, actual);

            // arrange
            input = "1/4";
            expected = 4;
            // act
            actual = clsDimension.CvtSixteenthsFractionalToDecimal(input);
            // assert
            Assert.AreEqual(expected, actual);

            // arrange
            input = "5/16";
            expected = 5;
            // act
            actual = clsDimension.CvtSixteenthsFractionalToDecimal(input);
            // assert
            Assert.AreEqual(expected, actual);

            // arrange
            input = "7/16";
            expected = 3;
            // act
            actual = clsDimension.CvtSixteenthsFractionalToDecimal(input);
            // assert
            Assert.AreEqual(expected, actual);

            // arrange
            input = "1/2";
            expected = 8;
            // act
            actual = clsDimension.CvtSixteenthsFractionalToDecimal(input);
            // assert
            Assert.AreEqual(expected, actual);

            // arrange
            input = "9/16";
            expected = 9;
            // act
            actual = clsDimension.CvtSixteenthsFractionalToDecimal(input);
            // assert
            Assert.AreEqual(expected, actual);

            // arrange
            input = "5/8";
            expected = 10;
            // act
            actual = clsDimension.CvtSixteenthsFractionalToDecimal(input);
            // assert
            Assert.AreEqual(expected, actual);

            // arrange
            input = "11/16";
            expected = 11;
            // act
            actual = clsDimension.CvtSixteenthsFractionalToDecimal(input);
            // assert
            Assert.AreEqual(expected, actual);

            // arrange
            input = "3/4";
            expected = 12;
            // act
            actual = clsDimension.CvtSixteenthsFractionalToDecimal(input);
            // assert
            Assert.AreEqual(expected, actual);

            // arrange
            input = "13/16";
            expected = 13;
            // act
            actual = clsDimension.CvtSixteenthsFractionalToDecimal(input);
            // assert
            Assert.AreEqual(expected, actual);

            // arrange
            input = "7/8";
            expected = 14;
            // act
            actual = clsDimension.CvtSixteenthsFractionalToDecimal(input);
            // assert
            Assert.AreEqual(expected, actual);

            // arrange
            input = "15/16";
            expected = 15;
            // act
            actual = clsDimension.CvtSixteenthsFractionalToDecimal(input);
            // assert
            Assert.AreEqual(expected, actual);

        }

Answer 1

public double ConvertSixteenthsFractionalToDecimal_AverageCase

應該

public void ConvertSixteenthsFractionalToDecimal_AverageCase

測試方法不返回值。

作為旁白：

這不是您編寫好的測試的方式 ，每個安排，操作，斷言都應該是它自己的測試用例，否則一個測試失敗將阻止所有其他測試運行。