minify/default_test.go at master · mfzl/minify

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package minify // import "github.com/tdewolff/minify"

import (

"bytes"

"io"

"testing"

"github.com/tdewolff/parse"

)

// Don't implement Bytes() to test for buffer exceeding.

type readerMockup struct {

r io.Reader

}

func (r *readerMockup) Read(p []byte) (int, error) {

n, err := r.r.Read(p)

if n < len(p) {

err = io.EOF

}

return n, err

}

////////////////////////////////////////////////////////////////

func helperTestDefault(t *testing.T, m *Minifier, input, expected string) {

b := &bytes.Buffer{}

if err := m.Default(b, &readerMockup{bytes.NewBufferString(input)}); err != nil {

t.Error(err)

return

}

if b.String() != expected {

t.Error(b.String(), "!=", expected)

}

func helperTestDefaultError(t *testing.T, m *Minifier, input string, expErr error) {

b := &bytes.Buffer{}

if err := m.Default(b, &readerMockup{bytes.NewBufferString(input)}); err != expErr {

t.Error(err, "!=", expErr, "for", input)

}

////////////////////////////////////////////////////////////////

func TestDefault(t *testing.T) {

m := NewMinifier()

helperTestDefault(t, m, " x ", "x")

parse.MinBuf = 2

parse.MaxBuf = 4

helperTestDefault(t, m, " y ", "y")

helperTestDefaultError(t, m, " y ", nil) // EOF

helperTestDefaultError(t, m, " y ", parse.ErrBufferExceeded)

}

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