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go/src/infra/libs/git/objectType_test.go

Index: go/src/infra/libs/git/objectType_test.go
diff --git a/go/src/infra/libs/git/objectType_test.go b/go/src/infra/libs/git/objectType_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..4f02ef4fc76ebfadd00b5a9782b954fedea4fccc
--- /dev/null
+++ b/go/src/infra/libs/git/objectType_test.go
@@ -0,0 +1,40 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package git
+
+import (
+	"fmt"
+	"testing"
+
+	. "github.com/smartystreets/goconvey/convey"
+)
+
+func TestObjectType(t *testing.T) {
+	t.Parallel()
+	types := map[string]ObjectType{
+		"commit": CommitType,
+		"blob":   BlobType,
+		"tree":   TreeType,
+		"tag":    TagType,
+	}
+
+	Convey("ObjectType", t, func() {
+		Convey("unknown raw value is UNKNOWN", func() {
+			So((TagType + 1).String(), ShouldEqual, "UNKNOWN")
+		})
+
+		for val, expected := range types {
+			val, expected := val, expected
+			Convey(fmt.Sprintf("MakeObjectType(%#v) == %v", val, expected), func() {
+				So(MakeObjectType(val), ShouldEqual, expected)
+			})
+		}
+
+		Convey("MakeObjectType(\"garbage\") panics", func() {
+			So(func() { MakeObjectType("garbage") }, ShouldPanic)
+		})
+	})
+
+}