1 files changed, 83 insertions, 0 deletions
diff --git a/tpl/strings/regexp_test.go b/tpl/strings/regexp_test.go
new file mode 100644
index 000000000..e05b00fb1
--- /dev/null
+++ b/tpl/strings/regexp_test.go
@@ -0,0 +1,83 @@
+// 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 strings
+
+import (
+	"testing"
+
+	qt "github.com/frankban/quicktest"
+)
+
+func TestFindRE(t *testing.T) {
+	t.Parallel()
+	c := qt.New(t)
+
+	for _, test := range []struct {
+		expr    string
+		content interface{}
+		limit   interface{}
+		expect  interface{}
+	}{
+		{"[G|g]o", "Hugo is a static site generator written in Go.", 2, []string{"go", "Go"}},
+		{"[G|g]o", "Hugo is a static site generator written in Go.", -1, []string{"go", "Go"}},
+		{"[G|g]o", "Hugo is a static site generator written in Go.", 1, []string{"go"}},
+		{"[G|g]o", "Hugo is a static site generator written in Go.", "1", []string{"go"}},
+		{"[G|g]o", "Hugo is a static site generator written in Go.", nil, []string(nil)},
+		// errors
+		{"[G|go", "Hugo is a static site generator written in Go.", nil, false},
+		{"[G|g]o", t, nil, false},
+	} {
+		result, err := ns.FindRE(test.expr, test.content, test.limit)
+
+		if b, ok := test.expect.(bool); ok && !b {
+			c.Assert(err, qt.Not(qt.IsNil))
+			continue
+		}
+
+		c.Assert(err, qt.IsNil)
+		c.Assert(result, qt.DeepEquals, test.expect)
+	}
+}
+
+func TestReplaceRE(t *testing.T) {
+	t.Parallel()
+	c := qt.New(t)
+
+	for _, test := range []struct {
+		pattern interface{}
+		repl    interface{}
+		s       interface{}
+		expect  interface{}
+	}{
+		{"^https?://([^/]+).*", "$1", "http://gohugo.io/docs", "gohugo.io"},
+		{"^https?://([^/]+).*", "$2", "http://gohugo.io/docs", ""},
+		{"(ab)", "AB", "aabbaab", "aABbaAB"},
+		// errors
+		{"(ab", "AB", "aabb", false}, // invalid re
+		{tstNoStringer{}, "$2", "http://gohugo.io/docs", false},
+		{"^https?://([^/]+).*", tstNoStringer{}, "http://gohugo.io/docs", false},
+		{"^https?://([^/]+).*", "$2", tstNoStringer{}, false},
+	} {
+
+		result, err := ns.ReplaceRE(test.pattern, test.repl, test.s)
+
+		if b, ok := test.expect.(bool); ok && !b {
+			c.Assert(err, qt.Not(qt.IsNil))
+			continue
+		}
+
+		c.Assert(err, qt.IsNil)
+		c.Assert(result, qt.Equals, test.expect)
+	}
+}