1 files changed, 64 insertions, 0 deletions
diff --git a/tpl/collections/apply_test.go b/tpl/collections/apply_test.go
new file mode 100644
index 000000000..de24b06c8
--- /dev/null
+++ b/tpl/collections/apply_test.go
@@ -0,0 +1,64 @@
+// Copyright 2017 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 collections
+
+import (
+	"testing"
+
+	"fmt"
+
+	"github.com/gohugoio/hugo/deps"
+	"github.com/gohugoio/hugo/tpl"
+	"github.com/stretchr/testify/require"
+)
+
+type templateFinder int
+
+func (templateFinder) Lookup(name string) *tpl.TemplateAdapter {
+	return nil
+}
+
+func (templateFinder) GetFuncs() map[string]interface{} {
+	return map[string]interface{}{
+		"print": fmt.Sprint,
+	}
+}
+
+func TestApply(t *testing.T) {
+	t.Parallel()
+
+	ns := New(&deps.Deps{Tmpl: new(templateFinder)})
+
+	strings := []interface{}{"a\n", "b\n"}
+
+	result, err := ns.Apply(strings, "print", "a", "b", "c")
+	require.NoError(t, err)
+	require.Equal(t, []interface{}{"abc", "abc"}, result, "testing variadic")
+
+	_, err = ns.Apply(strings, "apply", ".")
+	require.Error(t, err)
+
+	var nilErr *error
+	_, err = ns.Apply(nilErr, "chomp", ".")
+	require.Error(t, err)
+
+	_, err = ns.Apply(strings, "dobedobedo", ".")
+	require.Error(t, err)
+
+	_, err = ns.Apply(strings, "foo.Chomp", "c\n")
+	if err == nil {
+		t.Errorf("apply with unknown func should fail")
+	}
+
+}