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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 (
"fmt"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestFindRE(t *testing.T) {
t.Parallel()
for i, test := range []struct {
expr string
content interface{}
limit interface{}
expect interface{}
}{
{"[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},
} {
errMsg := fmt.Sprintf("[%d] %v", i, test)
result, err := ns.FindRE(test.expr, test.content, test.limit)
if b, ok := test.expect.(bool); ok && !b {
require.Error(t, err, errMsg)
continue
}
require.NoError(t, err, errMsg)
assert.Equal(t, test.expect, result, errMsg)
}
}
func TestReplaceRE(t *testing.T) {
t.Parallel()
for i, test := range []struct {
pattern interface{}
repl interface{}
s interface{}
expect interface{}
}{
{"^https?://([^/]+).*", "$1", "http://gohugo.io/docs", "gohugo.io"},
{"^https?://([^/]+).*", "$2", "http://gohugo.io/docs", ""},
{"(ab)", "AB", "aabbaab", "aABbaAB"},
// errors
{"(ab", "AB", "aabb", false}, // invalid re
{tstNoStringer{}, "$2", "http://gohugo.io/docs", false},
{"^https?://([^/]+).*", tstNoStringer{}, "http://gohugo.io/docs", false},
{"^https?://([^/]+).*", "$2", tstNoStringer{}, false},
} {
errMsg := fmt.Sprintf("[%d] %v", i, test)
result, err := ns.ReplaceRE(test.pattern, test.repl, test.s)
if b, ok := test.expect.(bool); ok && !b {
require.Error(t, err, errMsg)
continue
}
require.NoError(t, err, errMsg)
assert.Equal(t, test.expect, result, errMsg)
}
}
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