1 files changed, 51 insertions, 0 deletions
diff --git a/common/maps/params_test.go b/common/maps/params_test.go
new file mode 100644
index 000000000..8016a8bd6
--- /dev/null
+++ b/common/maps/params_test.go
@@ -0,0 +1,51 @@
+// 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 maps
+
+import (
+	"testing"
+
+	qt "github.com/frankban/quicktest"
+)
+
+func TestGetNestedParam(t *testing.T) {
+
+	m := map[string]interface{}{
+		"string":          "value",
+		"first":           1,
+		"with_underscore": 2,
+		"nested": map[string]interface{}{
+			"color": "blue",
+			"nestednested": map[string]interface{}{
+				"color": "green",
+			},
+		},
+	}
+
+	c := qt.New(t)
+
+	must := func(keyStr, separator string, candidates ...Params) interface{} {
+		v, err := GetNestedParam(keyStr, separator, candidates...)
+		c.Assert(err, qt.IsNil)
+		return v
+	}
+
+	c.Assert(must("first", "_", m), qt.Equals, 1)
+	c.Assert(must("First", "_", m), qt.Equals, 1)
+	c.Assert(must("with_underscore", "_", m), qt.Equals, 2)
+	c.Assert(must("nested_color", "_", m), qt.Equals, "blue")
+	c.Assert(must("nested.nestednested.color", ".", m), qt.Equals, "green")
+	c.Assert(must("string.name", ".", m), qt.IsNil)
+
+}