diff

README

diff

Quick'n'easy string diffing functions for Golang based on github.com/sergi/go-diff. Mainly for diffing strings in tests.

See the docs on GoDoc.

Get it:

go get -u github.com/andreyvit/diff

Example:

import (
    "strings"
    "testing"
    "github.com/andreyvit/diff"
)

const expected = `
...
`

func TestFoo(t *testing.T) {
    actual := Foo(...)
    if a, e := strings.TrimSpace(actual), strings.TrimSpace(expected); a != e {
        t.Errorf("Result not as expected:\n%v", diff.LineDiff(e, a))
    }
}

Documentation

Overview

diff provides quick and easy string diffing functions based on github.com/sergi/go-diff, mainly for diffing strings in tests

Index

• func CharacterDiff(a, b string) string
• func LineDiff(a, b string) string
• func LineDiffAsLines(a, b string) []string
• func TrimLines(input []string) []string
• func TrimLinesInString(input string) string

Functions

func CharacterDiff

func CharacterDiff(a, b string) string

CharacterDiff returns an inline diff between the two strings, using (++added++) and (~~deleted~~) markup.

func LineDiff

func LineDiff(a, b string) string

LineDiff returns a normal linewise diff between the two given strings.

func LineDiffAsLines

func LineDiffAsLines(a, b string) []string

LineDiffAsLines returns the lines of a linewise diff between the two given strings.

func TrimLines

func TrimLines(input []string) []string

TrimLines applies TrimSpace to each string in the given array.

func TrimLinesInString

func TrimLinesInString(input string) string

TrimLinesInString applies TrimSpace to each line in the given string, and returns the new trimmed string. Empty lines are not removed.