Golang测试日志记录实战示例

func TestAdd(t *testing.T) {
    a, b := 2, 3
    result := a + b

    t.Log("开始计算：", a, "+", b)
    t.Logf("期望值: %d, 实际值: %d", 5, result)

    if result != 5 {
        t.Errorf("Add(%d, %d) = %d; expected 5", a, b, result)
    }
}

<code>func TestMathOperations(t *testing.T) {
    t.Run("subtest_addition", func(t *testing.T) {
        t.Log("正在测试加法...")
        if 2+2 != 4 {
            t.Error("加法错误")
        }
    })

    t.Run("subtest_multiplication", func(t *testing.T) {
        t.Log("正在测试乘法...")
        if 3*3 != 9 {
            t.Error("乘法错误")
        }
    })
}
</code>

<code>func TestDivide(t *testing.T) {
    numerator := 10
    denominator := 0
    var result float64

    t.Log("输入参数:", numerator, "/", denominator)

    if denominator == 0 {
        t.Log("检测到除零，跳过计算")
        t.Skip("除零操作不支持")
    }

    result = float64(numerator) / float64(denominator)
    t.Logf("计算完成，结果: %f", result)

    if result != 5 {
        t.Errorf("期望结果为5，实际为%f", result)
    }
}
</code>

<code>go test -v ./...
</code>