1 files changed, 83 insertions, 0 deletions
diff --git a/hugofs/filename_filter_fs_test.go b/hugofs/filename_filter_fs_test.go
new file mode 100644
index 000000000..b3e97a6a6
--- /dev/null
+++ b/hugofs/filename_filter_fs_test.go
@@ -0,0 +1,83 @@
+// Copyright 2019 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 hugofs
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/gohugoio/hugo/hugofs/glob"
+
+	"github.com/spf13/afero"
+
+	qt "github.com/frankban/quicktest"
+)
+
+func TestFilenameFilterFs(t *testing.T) {
+	c := qt.New(t)
+
+	base := filepath.FromSlash("/mybase")
+
+	fs := NewBaseFileDecorator(afero.NewMemMapFs())
+
+	for _, letter := range []string{"a", "b", "c"} {
+		for i := 1; i <= 3; i++ {
+			c.Assert(afero.WriteFile(fs, filepath.Join(base, letter, fmt.Sprintf("my%d.txt", i)), []byte("some text file for"+letter), 0755), qt.IsNil)
+			c.Assert(afero.WriteFile(fs, filepath.Join(base, letter, fmt.Sprintf("my%d.json", i)), []byte("some json file for"+letter), 0755), qt.IsNil)
+		}
+	}
+
+	fs = afero.NewBasePathFs(fs, base)
+
+	filter, err := glob.NewFilenameFilter(nil, []string{"/b/**.txt"})
+	c.Assert(err, qt.IsNil)
+
+	fs = newFilenameFilterFs(fs, base, filter)
+
+	assertExists := func(filename string, shouldExist bool) {
+		filename = filepath.Clean(filename)
+		_, err1 := fs.Stat(filename)
+		f, err2 := fs.Open(filename)
+		if shouldExist {
+			c.Assert(err1, qt.IsNil)
+			c.Assert(err2, qt.IsNil)
+			defer f.Close()
+
+		} else {
+			for _, err := range []error{err1, err2} {
+				c.Assert(err, qt.Not(qt.IsNil))
+				c.Assert(errors.Is(err, os.ErrNotExist), qt.IsTrue)
+			}
+		}
+	}
+
+	assertExists("/a/my1.txt", true)
+	assertExists("/b/my1.txt", false)
+
+	dirB, err := fs.Open("/b")
+	defer dirB.Close()
+	c.Assert(err, qt.IsNil)
+	dirBEntries, err := dirB.Readdirnames(-1)
+	c.Assert(dirBEntries, qt.DeepEquals, []string{"my1.json", "my2.json", "my3.json"})
+
+	dirC, err := fs.Open("/c")
+	defer dirC.Close()
+	c.Assert(err, qt.IsNil)
+	dirCEntries, err := dirC.Readdirnames(-1)
+	c.Assert(dirCEntries, qt.DeepEquals, []string{"my1.json", "my1.txt", "my2.json", "my2.txt", "my3.json", "my3.txt"})
+
+}