1 files changed, 45 insertions, 0 deletions
diff --git a/common/maps/params_test.go b/common/maps/params_test.go
new file mode 100644
index 000000000..89b149617
--- /dev/null
+++ b/common/maps/params_test.go
@@ -0,0 +1,45 @@
+// 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"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetNestedParam(t *testing.T) {
+
+	m := map[string]interface{}{
+		"first":           1,
+		"with_underscore": 2,
+		"nested": map[string]interface{}{
+			"color": "blue",
+		},
+	}
+
+	assert := require.New(t)
+
+	must := func(keyStr, separator string, candidates ...map[string]interface{}) interface{} {
+		v, err := GetNestedParam(keyStr, separator, candidates...)
+		assert.NoError(err)
+		return v
+	}
+
+	assert.Equal(1, must("first", "_", m))
+	assert.Equal(1, must("First", "_", m))
+	assert.Equal(2, must("with_underscore", "_", m))
+	assert.Equal("blue", must("nested_color", "_", m))
+
+}