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go/src/infra/libs/git/objectID_test.go

+// 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 (
+        "encoding/hex"
+        "testing"
+
+        . "github.com/smartystreets/goconvey/convey"
+)
+
+func TestMakeObjectID(t *testing.T) {
+        t.Parallel()
+
+        Convey("ObjectID", t, func() {
+                Convey("NoID", func() {
+                        So(NoID, ShouldResemble, ObjectID{})
+                        So(NoID.String(), ShouldEqual, "<NoID>")
+                })
+
+                Convey("MakeObjectID", func() {
+                        db := "deadbeefdeadbeefdeadbeefdeadbeefdeadbeef"
+                        hdb, err := hex.DecodeString(db)
+                        So(err, ShouldBeNil)
+
+                        id := MakeObjectID(db)
+                        So(id.String(), ShouldEqual, db)
+                        So(id.RawString(), ShouldEqual, string(hdb))
+
+                        Convey("Panics when given garbage", func() {
+                                So(func() { MakeObjectID("cats") }, ShouldPanic)
+                                So(func() { MakeObjectID("deadcatsdeadcatsdeadcatsdeadcatsdeadcats") }, ShouldPanic)
+                        })
+                })
+
+                Convey("MakeObjectIDRawErr lets you intercept the error", func() {
+                        _, err := MakeObjectIDRawErr([]byte("cats"))
+                        So(err, ShouldNotBeNil)
+                })
+        })
+}