1 files changed, 43 insertions, 0 deletions
diff --git a/lib_test.go b/lib_test.go
index 556ed91..84a52bb 100644
--- a/lib_test.go
+++ b/lib_test.go
@@ -1,13 +1,18 @@
 package excelize
 
 import (
+	"archive/zip"
+	"bytes"
 	"encoding/xml"
 	"fmt"
+	"os"
 	"strconv"
 	"strings"
+	"sync"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
 var validColumns = []struct {
@@ -296,3 +301,41 @@ func TestBstrMarshal(t *testing.T) {
 		assert.Equal(t, expected, bstrMarshal(bstr))
 	}
 }
+
+func TestReadBytes(t *testing.T) {
+	f := &File{tempFiles: sync.Map{}}
+	sheet := "xl/worksheets/sheet1.xml"
+	f.tempFiles.Store(sheet, "/d/")
+	assert.Equal(t, []byte{}, f.readBytes(sheet))
+}
+
+func TestUnzipToTemp(t *testing.T) {
+	os.Setenv("TMPDIR", "test")
+	defer os.Unsetenv("TMPDIR")
+	assert.NoError(t, os.Chmod(os.TempDir(), 0444))
+	f := NewFile()
+	data := []byte("PK\x03\x040000000PK\x01\x0200000" +
+		"0000000000000000000\x00" +
+		"\x00\x00\x00\x00\x00000000000000PK\x01" +
+		"\x020000000000000000000" +
+		"00000\v\x00\x00\x00\x00\x00000000000" +
+		"00000000000000PK\x01\x0200" +
+		"00000000000000000000" +
+		"00\v\x00\x00\x00\x00\x00000000000000" +
+		"00000000000PK\x01\x020000<" +
+		"0\x00\x0000000000000000\v\x00\v" +
+		"\x00\x00\x00\x00\x0000000000\x00\x00\x00\x00000" +
+		"00000000PK\x01\x0200000000" +
+		"0000000000000000\v\x00\x00\x00" +
+		"\x00\x0000PK\x05\x06000000\x05\x000000" +
+		"\v\x00\x00\x00\x00\x00")
+	z, err := zip.NewReader(bytes.NewReader(data), int64(len(data)))
+	assert.NoError(t, err)
+
+	_, err = f.unzipToTemp(z.File[0])
+	require.Error(t, err)
+	assert.NoError(t, os.Chmod(os.TempDir(), 0755))
+
+	_, err = f.unzipToTemp(z.File[0])
+	assert.EqualError(t, err, "EOF")
+}