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// Copyright 2017 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package strings
import (
"testing"
qt "github.com/frankban/quicktest"
)
func TestFindRE(t *testing.T) {
t.Parallel()
c := qt.New(t)
for _, test := range []struct {
expr string
content any
limit any
expect any
}{
{"[G|g]o", "Hugo is a static site generator written in Go.", 2, []string{"go", "Go"}},
{"[G|g]o", "Hugo is a static site generator written in Go.", -1, []string{"go", "Go"}},
{"[G|g]o", "Hugo is a static site generator written in Go.", 1, []string{"go"}},
{"[G|g]o", "Hugo is a static site generator written in Go.", "1", []string{"go"}},
{"[G|g]o", "Hugo is a static site generator written in Go.", nil, []string(nil)},
// errors
{"[G|go", "Hugo is a static site generator written in Go.", nil, false},
{"[G|g]o", t, nil, false},
} {
result, err := ns.FindRE(test.expr, test.content, test.limit)
if b, ok := test.expect.(bool); ok && !b {
c.Assert(err, qt.Not(qt.IsNil))
continue
}
c.Assert(err, qt.IsNil)
c.Check(result, qt.DeepEquals, test.expect)
}
}
func TestFindRESubmatch(t *testing.T) {
t.Parallel()
c := qt.New(t)
for _, test := range []struct {
expr string
content any
limit any
expect any
}{
{`<a\s*href="(.+?)">(.+?)</a>`, `<li><a href="#foo">Foo</a></li><li><a href="#bar">Bar</a></li>`, -1, [][]string{
{"<a href=\"#foo\">Foo</a>", "#foo", "Foo"},
{"<a href=\"#bar\">Bar</a>", "#bar", "Bar"},
}},
// Some simple cases.
{"([G|g]o)", "Hugo is a static site generator written in Go.", -1, [][]string{{"go", "go"}, {"Go", "Go"}}},
{"([G|g]o)", "Hugo is a static site generator written in Go.", 1, [][]string{{"go", "go"}}},
// errors
{"([G|go", "Hugo is a static site generator written in Go.", nil, false},
{"([G|g]o)", t, nil, false},
} {
result, err := ns.FindRESubmatch(test.expr, test.content, test.limit)
if b, ok := test.expect.(bool); ok && !b {
c.Assert(err, qt.Not(qt.IsNil))
continue
}
c.Assert(err, qt.IsNil)
c.Check(result, qt.DeepEquals, test.expect)
}
}
func TestReplaceRE(t *testing.T) {
t.Parallel()
c := qt.New(t)
for _, test := range []struct {
pattern any
repl any
s any
n []any
expect any
}{
{"^https?://([^/]+).*", "$1", "http://gohugo.io/docs", nil, "gohugo.io"},
{"^https?://([^/]+).*", "$2", "http://gohugo.io/docs", nil, ""},
{"(ab)", "AB", "aabbaab", nil, "aABbaAB"},
{"(ab)", "AB", "aabbaab", []any{1}, "aABbaab"},
// errors
{"(ab", "AB", "aabb", nil, false}, // invalid re
{tstNoStringer{}, "$2", "http://gohugo.io/docs", nil, false},
{"^https?://([^/]+).*", tstNoStringer{}, "http://gohugo.io/docs", nil, false},
{"^https?://([^/]+).*", "$2", tstNoStringer{}, nil, false},
} {
var (
result string
err error
)
if len(test.n) > 0 {
result, err = ns.ReplaceRE(test.pattern, test.repl, test.s, test.n...)
} else {
result, err = ns.ReplaceRE(test.pattern, test.repl, test.s)
}
if b, ok := test.expect.(bool); ok && !b {
c.Assert(err, qt.Not(qt.IsNil))
continue
}
c.Assert(err, qt.IsNil)
c.Check(result, qt.Equals, test.expect)
}
}
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