blob: afc31374c3f0d577c6f1abe06130e155d2320ca5 [file] [log] [blame]
// Copyright 2013 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 godoc
import (
"bytes"
"go/parser"
"go/token"
"strings"
"testing"
)
func TestPkgLinkFunc(t *testing.T) {
for _, tc := range []struct {
path string
want string
}{
{"/src/fmt", "pkg/fmt"},
{"src/fmt", "pkg/fmt"},
{"/fmt", "pkg/fmt"},
{"fmt", "pkg/fmt"},
} {
if got := pkgLinkFunc(tc.path); got != tc.want {
t.Errorf("pkgLinkFunc(%v) = %v; want %v", tc.path, got, tc.want)
}
}
}
func TestSrcPosLinkFunc(t *testing.T) {
for _, tc := range []struct {
src string
line int
low int
high int
want string
}{
{"/src/fmt/print.go", 42, 30, 50, "/src/fmt/print.go?s=30:50#L32"},
{"/src/fmt/print.go", 2, 1, 5, "/src/fmt/print.go?s=1:5#L1"},
{"/src/fmt/print.go", 2, 0, 0, "/src/fmt/print.go#L2"},
{"/src/fmt/print.go", 0, 0, 0, "/src/fmt/print.go"},
{"/src/fmt/print.go", 0, 1, 5, "/src/fmt/print.go?s=1:5#L1"},
{"fmt/print.go", 0, 0, 0, "/src/fmt/print.go"},
{"fmt/print.go", 0, 1, 5, "/src/fmt/print.go?s=1:5#L1"},
} {
if got := srcPosLinkFunc(tc.src, tc.line, tc.low, tc.high); got != tc.want {
t.Errorf("srcLinkFunc(%v, %v, %v, %v) = %v; want %v", tc.src, tc.line, tc.low, tc.high, got, tc.want)
}
}
}
func TestSrcLinkFunc(t *testing.T) {
for _, tc := range []struct {
src string
want string
}{
{"/src/fmt/print.go", "/src/fmt/print.go"},
{"src/fmt/print.go", "/src/fmt/print.go"},
{"/fmt/print.go", "/src/fmt/print.go"},
{"fmt/print.go", "/src/fmt/print.go"},
} {
if got := srcLinkFunc(tc.src); got != tc.want {
t.Errorf("srcLinkFunc(%v) = %v; want %v", tc.src, got, tc.want)
}
}
}
func TestQueryLinkFunc(t *testing.T) {
for _, tc := range []struct {
src string
query string
line int
want string
}{
{"/src/fmt/print.go", "Sprintf", 33, "/src/fmt/print.go?h=Sprintf#L33"},
{"/src/fmt/print.go", "Sprintf", 0, "/src/fmt/print.go?h=Sprintf"},
{"src/fmt/print.go", "EOF", 33, "/src/fmt/print.go?h=EOF#L33"},
{"src/fmt/print.go", "a%3f+%26b", 1, "/src/fmt/print.go?h=a%3f+%26b#L1"},
} {
if got := queryLinkFunc(tc.src, tc.query, tc.line); got != tc.want {
t.Errorf("queryLinkFunc(%v, %v, %v) = %v; want %v", tc.src, tc.query, tc.line, got, tc.want)
}
}
}
func TestDocLinkFunc(t *testing.T) {
for _, tc := range []struct {
src string
ident string
want string
}{
{"fmt", "Sprintf", "/pkg/fmt/#Sprintf"},
{"fmt", "EOF", "/pkg/fmt/#EOF"},
} {
if got := docLinkFunc(tc.src, tc.ident); got != tc.want {
t.Errorf("docLinkFunc(%v, %v) = %v; want %v", tc.src, tc.ident, got, tc.want)
}
}
}
func TestSanitizeFunc(t *testing.T) {
for _, tc := range []struct {
src string
want string
}{
{},
{"foo", "foo"},
{"func f()", "func f()"},
{"func f(a int,)", "func f(a int)"},
{"func f(a int,\n)", "func f(a int)"},
{"func f(\n\ta int,\n\tb int,\n\tc int,\n)", "func f(a int, b int, c int)"},
{" ( a, b, c ) ", "(a, b, c)"},
{"( a, b, c int, foo bar , )", "(a, b, c int, foo bar)"},
{"{ a, b}", "{a, b}"},
{"[ a, b]", "[a, b]"},
} {
if got := sanitizeFunc(tc.src); got != tc.want {
t.Errorf("sanitizeFunc(%v) = %v; want %v", tc.src, got, tc.want)
}
}
}
// Test that we add <span id="StructName.FieldName"> elements
// to the HTML of struct fields.
func TestStructFieldsIDAttributes(t *testing.T) {
got := linkifySource(t, []byte(`
package foo
type T struct {
NoDoc string
// Doc has a comment.
Doc string
// Opt, if non-nil, is an option.
Opt *int
// Опция - другое поле.
Опция bool
}
`))
want := `type T struct {
<span id="T.NoDoc"></span>NoDoc <a href="/pkg/builtin/#string">string</a>
<span id="T.Doc"></span><span class="comment">// Doc has a comment.</span>
Doc <a href="/pkg/builtin/#string">string</a>
<span id="T.Opt"></span><span class="comment">// Opt, if non-nil, is an option.</span>
Opt *<a href="/pkg/builtin/#int">int</a>
<span id="T.Опция"></span><span class="comment">// Опция - другое поле.</span>
Опция <a href="/pkg/builtin/#bool">bool</a>
}`
if got != want {
t.Errorf("got: %s\n\nwant: %s\n", got, want)
}
}
// Test that we add <span id="ConstName"> elements to the HTML
// of definitions in const and var specs.
func TestValueSpecIDAttributes(t *testing.T) {
got := linkifySource(t, []byte(`
package foo
const (
NoDoc string = "NoDoc"
// Doc has a comment
Doc = "Doc"
NoVal
)`))
want := `const (
<span id="NoDoc">NoDoc</span> <a href="/pkg/builtin/#string">string</a> = &#34;NoDoc&#34;
<span class="comment">// Doc has a comment</span>
<span id="Doc">Doc</span> = &#34;Doc&#34;
<span id="NoVal">NoVal</span>
)`
if got != want {
t.Errorf("got: %s\n\nwant: %s\n", got, want)
}
}
func TestCompositeLitLinkFields(t *testing.T) {
got := linkifySource(t, []byte(`
package foo
type T struct {
X int
}
var S T = T{X: 12}`))
want := `type T struct {
<span id="T.X"></span>X <a href="/pkg/builtin/#int">int</a>
}
var <span id="S">S</span> <a href="#T">T</a> = <a href="#T">T</a>{<a href="#T.X">X</a>: 12}`
if got != want {
t.Errorf("got: %s\n\nwant: %s\n", got, want)
}
}
func linkifySource(t *testing.T, src []byte) string {
p := &Presentation{
DeclLinks: true,
}
fset := token.NewFileSet()
af, err := parser.ParseFile(fset, "foo.go", src, parser.ParseComments)
if err != nil {
t.Fatal(err)
}
var buf bytes.Buffer
pi := &PageInfo{
FSet: fset,
}
sep := ""
for _, decl := range af.Decls {
buf.WriteString(sep)
sep = "\n"
buf.WriteString(p.node_htmlFunc(pi, decl, true))
}
return buf.String()
}
func TestScanIdentifier(t *testing.T) {
tests := []struct {
in, want string
}{
{"foo bar", "foo"},
{"foo/bar", "foo"},
{" foo", ""},
{"фоо", "фоо"},
{"f123", "f123"},
{"123f", ""},
}
for _, tt := range tests {
got := scanIdentifier([]byte(tt.in))
if string(got) != tt.want {
t.Errorf("scanIdentifier(%q) = %q; want %q", tt.in, got, tt.want)
}
}
}
func TestReplaceLeadingIndentation(t *testing.T) {
oldIndent := strings.Repeat(" ", 2)
newIndent := strings.Repeat(" ", 4)
tests := []struct {
src, want string
}{
{" foo\n bar\n baz", " foo\n bar\n baz"},
{" '`'\n '`'\n", " '`'\n '`'\n"},
{" '\\''\n '`'\n", " '\\''\n '`'\n"},
{" \"`\"\n \"`\"\n", " \"`\"\n \"`\"\n"},
{" `foo\n bar`", " `foo\n bar`"},
{" `foo\\`\n bar", " `foo\\`\n bar"},
{" '\\`'`foo\n bar", " '\\`'`foo\n bar"},
{
" if true {\n foo := `One\n \tTwo\nThree`\n }\n",
" if true {\n foo := `One\n \tTwo\n Three`\n }\n",
},
}
for _, tc := range tests {
if got := replaceLeadingIndentation(tc.src, oldIndent, newIndent); got != tc.want {
t.Errorf("replaceLeadingIndentation:\n%v\n---\nhave:\n%v\n---\nwant:\n%v\n",
tc.src, got, tc.want)
}
}
}