mirror of
https://github.com/v2fly/v2ray-core.git
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74 lines
1.6 KiB
Go
74 lines
1.6 KiB
Go
package unit
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import (
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"bytes"
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"fmt"
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"runtime"
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"strings"
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)
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type Subject struct {
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assert *Assertion
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name string
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}
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func NewSubject(assert *Assertion) *Subject {
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return &Subject{
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assert: assert,
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name: "",
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}
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}
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// decorate prefixes the string with the file and line of the call site
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// and inserts the final newline if needed and indentation tabs for formatting.
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func decorate(s string) string {
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_, file, line, ok := runtime.Caller(4) // decorate + log + public function.
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if ok {
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// Truncate file name at last file name separator.
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if index := strings.LastIndex(file, "/"); index >= 0 {
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file = file[index+1:]
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} else if index = strings.LastIndex(file, "\\"); index >= 0 {
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file = file[index+1:]
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}
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} else {
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file = "???"
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line = 1
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}
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buf := new(bytes.Buffer)
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// Every line is indented at least one tab.
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buf.WriteString(" ")
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fmt.Fprintf(buf, "%s:%d: ", file, line)
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lines := strings.Split(s, "\n")
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if l := len(lines); l > 1 && lines[l-1] == "" {
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lines = lines[:l-1]
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}
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for i, line := range lines {
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if i > 0 {
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// Second and subsequent lines are indented an extra tab.
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buf.WriteString("\n\t\t")
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}
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buf.WriteString(line)
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}
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buf.WriteByte('\n')
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return buf.String()
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}
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func (subject *Subject) FailWithMessage(message string) {
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fmt.Println(decorate(message))
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subject.assert.t.Fail()
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}
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func (subject *Subject) Named(name string) {
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subject.name = name
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}
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func (subject *Subject) DisplayString(value string) string {
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if len(value) == 0 {
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value = "unknown"
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}
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if len(subject.name) == 0 {
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return "<" + value + ">"
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}
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return subject.name + "(<" + value + ">)"
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}
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