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// Copyright 2024 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 hugio
import (
"bytes"
"fmt"
"io"
"math/rand"
"strings"
"testing"
"time"
qt "github.com/frankban/quicktest"
)
func TestHasBytesWriter(t *testing.T) {
r := rand.New(rand.NewSource(time.Now().UnixNano()))
c := qt.New((t))
neww := func() (*HasBytesWriter, io.Writer) {
var b bytes.Buffer
h := &HasBytesWriter{
Pattern: []byte("__foo"),
}
return h, io.MultiWriter(&b, h)
}
rndStr := func() string {
return strings.Repeat("ab cfo", r.Intn(33))
}
for i := 0; i < 22; i++ {
h, w := neww()
fmt.Fprintf(w, rndStr()+"abc __foobar"+rndStr())
c.Assert(h.Match, qt.Equals, true)
h, w = neww()
fmt.Fprintf(w, rndStr()+"abc __f")
fmt.Fprintf(w, "oo bar"+rndStr())
c.Assert(h.Match, qt.Equals, true)
h, w = neww()
fmt.Fprintf(w, rndStr()+"abc __moo bar")
c.Assert(h.Match, qt.Equals, false)
}
h, w := neww()
fmt.Fprintf(w, "__foo")
c.Assert(h.Match, qt.Equals, true)
}
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