Added all required dependencies

vendor/github.com/smartystreets/assertions/internal/oglematchers/has_substr.go

@@ -0,0 +1,46 @@
+// Copyright 2011 Aaron Jacobs. All Rights Reserved.
+// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
+//
+// 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 oglematchers
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+	"strings"
+)
+
+// HasSubstr returns a matcher that matches strings containing s as a
+// substring.
+func HasSubstr(s string) Matcher {
+	return NewMatcher(
+		func(c interface{}) error { return hasSubstr(s, c) },
+		fmt.Sprintf("has substring \"%s\"", s))
+}
+
+func hasSubstr(needle string, c interface{}) error {
+	v := reflect.ValueOf(c)
+	if v.Kind() != reflect.String {
+		return NewFatalError("which is not a string")
+	}
+
+	// Perform the substring search.
+	haystack := v.String()
+	if strings.Contains(haystack, needle) {
+		return nil
+	}
+
+	return errors.New("")
+}