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// Copyright 2012 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 present
import (
"fmt"
"html/template"
"strings"
"testing"
)
func TestParseCode(t *testing.T) {
// Enable play but revert the change at the end.
defer func(play bool) { PlayEnabled = play }(PlayEnabled)
PlayEnabled = true
helloTest := []byte(`
package main
import "fmt"
func main() {
fmt.Println("hello, test")
}
`)
helloTestHTML := template.HTML(`
<pre><span num="2">package main</span>
<span num="3"></span>
<span num="4">import "fmt"</span>
<span num="5"></span>
<span num="6">func main() {</span>
<span num="7"> fmt.Println("hello, test")</span>
<span num="8">}</span>
</pre>
`)
helloTestHL := []byte(`
package main
import "fmt" // HLimport
func main() { // HLfunc
fmt.Println("hello, test") // HL
}
`)
highlight := func(h template.HTML, s string) template.HTML {
return template.HTML(strings.Replace(string(h), s, "<b>"+s+"</b>", -1))
}
read := func(b []byte, err error) func(string) ([]byte, error) {
return func(string) ([]byte, error) { return b, err }
}
tests := []struct {
name string
readFile func(string) ([]byte, error)
sourceFile string
cmd string
err string
Code
}{
{
name: "all code, no play",
readFile: read(helloTest, nil),
sourceFile: "main.go",
cmd: ".code main.go",
Code: Code{
Ext: ".go",
FileName: "main.go",
Raw: helloTest,
Text: helloTestHTML,
},
},
{
name: "all code, play",
readFile: read(helloTest, nil),
sourceFile: "main.go",
cmd: ".play main.go",
Code: Code{
Ext: ".go",
FileName: "main.go",
Play: true,
Raw: helloTest,
Text: helloTestHTML,
},
},
{
name: "all code, highlighted",
readFile: read(helloTestHL, nil),
sourceFile: "main.go",
cmd: ".code main.go",
Code: Code{
Ext: ".go",
FileName: "main.go",
Raw: helloTestHL,
Text: highlight(helloTestHTML, "fmt.Println("hello, test")"),
},
},
{
name: "highlight only func",
readFile: read(helloTestHL, nil),
sourceFile: "main.go",
cmd: ".code main.go HLfunc",
Code: Code{
Ext: ".go",
FileName: "main.go",
Play: false,
Raw: []byte("package main\n\nimport \"fmt\" // HLimport\n\nfunc main() { // HLfunc\n\tfmt.Println(\"hello, test\") // HL\n}"),
Text: highlight(helloTestHTML, "func main() {"),
},
},
{
name: "bad highlight syntax",
readFile: read(helloTest, nil),
sourceFile: "main.go",
cmd: ".code main.go HL",
err: "invalid highlight syntax",
},
{
name: "error reading file",
readFile: read(nil, fmt.Errorf("nope")),
sourceFile: "main.go",
cmd: ".code main.go",
err: "main.go:0: nope",
},
{
name: "from func main to the end",
readFile: read(helloTest, nil),
sourceFile: "main.go",
cmd: ".code main.go /func main/,",
Code: Code{
Ext: ".go",
FileName: "main.go",
Play: false,
Raw: []byte("func main() {\n\tfmt.Println(\"hello, test\")\n}"),
Text: "<pre><span num=\"6\">func main() {</span>\n<span num=\"7\"> fmt.Println("hello, test")</span>\n<span num=\"8\">}</span>\n</pre>",
},
},
{
name: "just func main",
readFile: read(helloTest, nil),
sourceFile: "main.go",
cmd: ".code main.go /func main/",
Code: Code{
Ext: ".go",
FileName: "main.go",
Play: false,
Raw: []byte("func main() {"),
Text: "<pre><span num=\"6\">func main() {</span>\n</pre>",
},
},
{
name: "bad address",
readFile: read(helloTest, nil),
sourceFile: "main.go",
cmd: ".code main.go /function main/",
err: "main.go:0: no match for function main",
},
{
name: "all code with numbers",
readFile: read(helloTest, nil),
sourceFile: "main.go",
cmd: ".code -numbers main.go",
Code: Code{
Ext: ".go",
FileName: "main.go",
Raw: helloTest,
// Replacing the first "<pre>"
Text: "<pre class=\"numbers\">" + helloTestHTML[6:],
},
},
{
name: "all code editable",
readFile: read(helloTest, nil),
sourceFile: "main.go",
cmd: ".code -edit main.go",
Code: Code{
Ext: ".go",
FileName: "main.go",
Raw: helloTest,
Text: "<pre contenteditable=\"true\" spellcheck=\"false\">" + helloTestHTML[6:],
},
},
}
trimHTML := func(t template.HTML) string { return strings.TrimSpace(string(t)) }
trimBytes := func(b []byte) string { return strings.TrimSpace(string(b)) }
for _, tt := range tests {
ctx := &Context{tt.readFile}
e, err := parseCode(ctx, tt.sourceFile, 0, tt.cmd)
if err != nil {
if tt.err == "" {
t.Errorf("%s: unexpected error %v", tt.name, err)
} else if !strings.Contains(err.Error(), tt.err) {
t.Errorf("%s: expected error %s; got %v", tt.name, tt.err, err)
}
continue
}
if tt.err != "" {
t.Errorf("%s: expected error %s; but got none", tt.name, tt.err)
continue
}
c, ok := e.(Code)
if !ok {
t.Errorf("%s: expected a Code value; got %T", tt.name, e)
continue
}
if c.FileName != tt.FileName {
t.Errorf("%s: expected FileName %s; got %s", tt.name, tt.FileName, c.FileName)
}
if c.Ext != tt.Ext {
t.Errorf("%s: expected Ext %s; got %s", tt.name, tt.Ext, c.Ext)
}
if c.Play != tt.Play {
t.Errorf("%s: expected Play %v; got %v", tt.name, tt.Play, c.Play)
}
if got, wants := trimBytes(c.Raw), trimBytes(tt.Raw); got != wants {
t.Errorf("%s: expected Raw \n%q\n; got \n%q\n", tt.name, wants, got)
}
if got, wants := trimHTML(c.Text), trimHTML(tt.Text); got != wants {
t.Errorf("%s: expected Text \n%q\n; got \n%q\n", tt.name, wants, got)
}
}
}
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