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mirror of https://github.com/golang/go synced 2024-11-18 11:04:42 -07:00
go/internal/span/token_test.go
Ian Cottrell 6536af71d9 internal/span: end of file is now last line +1
We already accepted it as a valid input, but for output we still produced
last_line,last_column+1
Also add package docs and improve error messages

Change-Id: I017aa326e8392134e67e8fabec47e750c8055454
Reviewed-on: https://go-review.googlesource.com/c/tools/+/199641
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-10-07 18:54:44 +00:00

79 lines
1.8 KiB
Go

// Copyright 2018 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 span_test
import (
"fmt"
"go/token"
"testing"
"golang.org/x/tools/internal/span"
)
var testdata = []struct {
uri string
content []byte
}{
{"/a.go", []byte(`
// file a.go
package test
`)},
{"/b.go", []byte(`
//
//
// file b.go
package test`)},
{"/c.go", []byte(`
// file c.go
package test`)},
}
var tokenTests = []span.Span{
span.New(span.FileURI("/a.go"), span.NewPoint(1, 1, 0), span.Point{}),
span.New(span.FileURI("/a.go"), span.NewPoint(3, 7, 20), span.NewPoint(3, 7, 20)),
span.New(span.FileURI("/b.go"), span.NewPoint(4, 9, 15), span.NewPoint(4, 13, 19)),
span.New(span.FileURI("/c.go"), span.NewPoint(4, 1, 26), span.Point{}),
}
func TestToken(t *testing.T) {
fset := token.NewFileSet()
files := map[span.URI]*token.File{}
for _, f := range testdata {
file := fset.AddFile(f.uri, -1, len(f.content))
file.SetLinesForContent(f.content)
files[span.FileURI(f.uri)] = file
}
for _, test := range tokenTests {
f := files[test.URI()]
c := span.NewTokenConverter(fset, f)
checkToken(t, c, span.New(
test.URI(),
span.NewPoint(test.Start().Line(), test.Start().Column(), 0),
span.NewPoint(test.End().Line(), test.End().Column(), 0),
), test)
checkToken(t, c, span.New(
test.URI(),
span.NewPoint(0, 0, test.Start().Offset()),
span.NewPoint(0, 0, test.End().Offset()),
), test)
}
}
func checkToken(t *testing.T, c *span.TokenConverter, in, expect span.Span) {
rng, err := in.Range(c)
if err != nil {
t.Error(err)
}
gotLoc, err := rng.Span()
if err != nil {
t.Error(err)
}
expected := fmt.Sprintf("%+v", expect)
got := fmt.Sprintf("%+v", gotLoc)
if expected != got {
t.Errorf("For %v expected %q got %q", in, expected, got)
}
}