I'm generating some source code using the templates package( is there a better method? )and part of the testing I need to check if the output matches the expected source code.

I tried a string comparison but it fails due the extra spaces / new lines generated by the templates package. I've also tried format.Source with not success. ( FAIL)

I tried to parse the ast of the both sources (see bellow) but the ast doesn't match either even if the code is basically same except the new lines / spaces. (FAIL)

package main

import (
    "fmt"
    "go/parser"
    "go/token"
    "reflect"
)

func main() {
    stub1 := `package main
     func myfunc(s string) error {
        return nil  
    }`
    stub2 := `package main

     func myfunc(s string) error {

        return nil

    }`
    fset := token.NewFileSet()
    r1, err := parser.ParseFile(fset, "", stub1, parser.AllErrors)
    if err != nil {
        panic(err)
    }
    fset = token.NewFileSet()
    r2, err := parser.ParseFile(fset, "", stub2, parser.AllErrors)
    if err != nil {
        panic(err)
    }
    if !reflect.DeepEqual(r1, r2) {
        fmt.Printf("e %v, r %s, ", r1, r2)
    }
}

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关于String.Compare的问题

cr890925

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