1 files changed, 86 insertions, 0 deletions
diff --git a/resources/page/pages_related_test.go b/resources/page/pages_related_test.go
new file mode 100644
index 000000000..016b492c8
--- /dev/null
+++ b/resources/page/pages_related_test.go
@@ -0,0 +1,86 @@
+// 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 page
+
+import (
+	"testing"
+	"time"
+
+	"github.com/gohugoio/hugo/common/types"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestRelated(t *testing.T) {
+	assert := require.New(t)
+
+	t.Parallel()
+
+	pages := Pages{
+		&testPage{
+			title:   "Page 1",
+			pubDate: mustParseDate("2017-01-03"),
+			params: map[string]interface{}{
+				"keywords": []string{"hugo", "says"},
+			},
+		},
+		&testPage{
+			title:   "Page 2",
+			pubDate: mustParseDate("2017-01-02"),
+			params: map[string]interface{}{
+				"keywords": []string{"hugo", "rocks"},
+			},
+		},
+		&testPage{
+			title:   "Page 3",
+			pubDate: mustParseDate("2017-01-01"),
+			params: map[string]interface{}{
+				"keywords": []string{"bep", "says"},
+			},
+		},
+	}
+
+	result, err := pages.RelatedTo(types.NewKeyValuesStrings("keywords", "hugo", "rocks"))
+
+	assert.NoError(err)
+	assert.Len(result, 2)
+	assert.Equal("Page 2", result[0].Title())
+	assert.Equal("Page 1", result[1].Title())
+
+	result, err = pages.Related(pages[0])
+	assert.NoError(err)
+	assert.Len(result, 2)
+	assert.Equal("Page 2", result[0].Title())
+	assert.Equal("Page 3", result[1].Title())
+
+	result, err = pages.RelatedIndices(pages[0], "keywords")
+	assert.NoError(err)
+	assert.Len(result, 2)
+	assert.Equal("Page 2", result[0].Title())
+	assert.Equal("Page 3", result[1].Title())
+
+	result, err = pages.RelatedTo(types.NewKeyValuesStrings("keywords", "bep", "rocks"))
+	assert.NoError(err)
+	assert.Len(result, 2)
+	assert.Equal("Page 2", result[0].Title())
+	assert.Equal("Page 3", result[1].Title())
+}
+
+func mustParseDate(s string) time.Time {
+	d, err := time.Parse("2006-01-02", s)
+	if err != nil {
+		panic(err)
+	}
+	return d
+}