Remove libs/clock in favor of luci-go/common/clock.

go/src/infra/libs/clock/clockflag/duration_test.go

Index: go/src/infra/libs/clock/clockflag/duration_test.go
diff --git a/go/src/infra/libs/clock/clockflag/duration_test.go b/go/src/infra/libs/clock/clockflag/duration_test.go
deleted file mode 100644
index a019f79b39f0014a5118a736e33c208f41842283..0000000000000000000000000000000000000000
--- a/go/src/infra/libs/clock/clockflag/duration_test.go
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright 2015 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 clockflag
-
-import (
-	"encoding/json"
-	"flag"
-	"testing"
-	"time"
-
-	. "github.com/smartystreets/goconvey/convey"
-)
-
-func TestDuration(t *testing.T) {
-	t.Parallel()
-
-	Convey(`A Duration flag`, t, func() {
-		fs := flag.NewFlagSet("test", flag.ContinueOnError)
-		var d Duration
-		fs.Var(&d, "duration", "Test duration parameter.")
-
-		Convey(`Parses a 10-second Duration from "10s".`, func() {
-			err := fs.Parse([]string{"-duration", "10s"})
-			So(err, ShouldBeNil)
-			So(d.Duration(), ShouldEqual, time.Second*10)
-			So(d.IsZero(), ShouldBeFalse)
-		})
-
-		Convey(`Returns an error when parsing "10z".`, func() {
-			err := fs.Parse([]string{"-duration", "10z"})
-			So(err, ShouldNotBeNil)
-		})
-
-		Convey(`When treated as a JSON field`, func() {
-			var s struct {
-				D Duration `json:"duration"`
-			}
-
-			testJSON := `{"duration":10}`
-			Convey(`Fails to unmarshal from `+testJSON+`.`, func() {
-				testJSON := testJSON
-				err := json.Unmarshal([]byte(testJSON), &s)
-				So(err, ShouldNotBeNil)
-			})
-
-			Convey(`Marshals correctly to duration string.`, func() {
-				testDuration := (5 * time.Second) + (2 * time.Minute)
-				s.D = Duration(testDuration)
-				testJSON, err := json.Marshal(&s)
-				So(err, ShouldBeNil)
-				So(string(testJSON), ShouldEqual, `{"duration":"2m5s"}`)
-
-				Convey(`And Unmarshals correctly.`, func() {
-					s.D = Duration(0)
-					err := json.Unmarshal([]byte(testJSON), &s)
-					So(err, ShouldBeNil)
-					So(s.D.Duration(), ShouldEqual, testDuration)
-				})
-			})
-		})
-	})
-}