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55 lines
1.2 KiB
Go
55 lines
1.2 KiB
Go
// This file is dual licensed under CC0 and The gonum license.
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//
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// Copyright ©2017 The gonum Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//
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// Copyright ©2017 Robin Eklind.
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// This file is made available under a Creative Commons CC0 1.0
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// Universal Public Domain Dedication.
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package lexer_test
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import (
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"bytes"
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"io/ioutil"
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"testing"
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"gonum.org/v1/gonum/graph/formats/dot"
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)
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func TestParseFile(t *testing.T) {
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golden := []struct {
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in string
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out string
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}{
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{
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in: "testdata/tokens.dot",
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out: "testdata/tokens.golden",
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},
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}
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for _, g := range golden {
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file, err := dot.ParseFile(g.in)
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if err != nil {
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t.Errorf("%q: unable to parse file; %v", g.in, err)
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continue
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}
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// If no output path is specified, the input is already golden.
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out := g.in
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if len(g.out) > 0 {
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out = g.out
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}
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buf, err := ioutil.ReadFile(out)
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if err != nil {
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t.Errorf("%q: unable to read file; %v", g.in, err)
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continue
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}
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got := file.String()
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// Remove trailing newline.
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want := string(bytes.TrimSpace(buf))
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if got != want {
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t.Errorf("%q: graph mismatch; expected %q, got %q", g.in, want, got)
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}
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}
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}
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