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// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package remap
import (
"go/format"
"testing"
)
func TestErrors(t *testing.T) {
tests := []struct {
in, out string
}{
{"", "x"},
{"x", ""},
{"var x int = 5\n", "var x = 5\n"},
{"these are \"one\" thing", "those are 'another' thing"},
}
for _, test := range tests {
m, err := Compute([]byte(test.in), []byte(test.out))
if err != nil {
t.Logf("Got expected error: %v", err)
continue
}
t.Errorf("Compute(%q, %q): got %+v, wanted error", test.in, test.out, m)
}
}
func TestMatching(t *testing.T) {
// The input is a source text that will be rearranged by the formatter.
const input = `package foo
var s int
func main(){}
`
output, err := format.Source([]byte(input))
if err != nil {
t.Fatalf("Formatting failed: %v", err)
}
m, err := Compute([]byte(input), output)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Verify that the mapped locations have the same text.
for key, val := range m {
want := input[key.Pos:key.End]
got := string(output[val.Pos:val.End])
if got != want {
t.Errorf("Token at %d:%d: got %q, want %q", key.Pos, key.End, got, want)
}
}
}
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