将 lal/pkg/util 的代码拷贝至本仓库中. 修改代码中import lal的路径为本仓库路径

.gitignore

@@ -0,0 +1,3 @@
+coverage.txt
+coverage.html
+profile.out

assert/assert.go

@@ -0,0 +1,53 @@
+// Package assert 提供了单元测试时的断言功能
+//
+// 代码参考了 https://github.com/stretchr/testify
+//
+package assert
+
+import (
+	"bytes"
+	"reflect"
+)
+
+type TestingT interface {
+	Errorf(format string, args ...interface{})
+}
+
+func Equal(t TestingT, expected interface{}, actual interface{}, msg ...string) {
+	if !equal(expected, actual) {
+		t.Errorf("%s expected=%+v, actual=%+v", msg, expected, actual)
+	}
+	return
+}
+
+func isNil(actual interface{}) bool {
+	if actual == nil {
+		return true
+	}
+	v := reflect.ValueOf(actual)
+	k := v.Kind()
+	if k == reflect.Chan || k == reflect.Map || k == reflect.Ptr || k == reflect.Interface || k == reflect.Slice {
+		return v.IsNil()
+	}
+	return false
+}
+
+func equal(expected, actual interface{}) bool {
+	if expected == nil {
+		return isNil(actual)
+	}
+
+	exp, ok := expected.([]byte)
+	if !ok {
+		return reflect.DeepEqual(expected, actual)
+	}
+
+	act, ok := actual.([]byte)
+	if !ok {
+		return false
+	}
+	//if exp == nil || act == nil {
+	//	return exp == nil && act == nil
+	//}
+	return bytes.Equal(exp, act)
+}

assert/assert_test.go

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+package assert
+
+import "testing"
+
+func TestEqual(t *testing.T) {
+	Equal(t, nil, nil)
+	Equal(t, nil, nil, "fxxk.")
+	Equal(t, 1, 1)
+	Equal(t, "aaa", "aaa")
+	var ch chan struct{}
+	Equal(t, nil, ch)
+	var m map[string]string
+	Equal(t, nil, m)
+	var p *int
+	Equal(t, nil, p)
+	var i interface{}
+	Equal(t, nil, i)
+	var b []byte
+	Equal(t, nil, b)
+
+	Equal(t, true, isNil(nil))
+	Equal(t, false, isNil("aaa"))
+	Equal(t, false, equal([]byte{}, "aaa"))
+	Equal(t, true, equal([]byte{}, []byte{}))
+	Equal(t, true, equal([]byte{0, 1, 2}, []byte{0, 1, 2}))
+}