using pushed images from the registry instead of packaging with build…

…packstore

checking in case of any error

integration.json

@@ -6,5 +6,5 @@
   "ubi-nodejs-extension": "github.com/paketo-community/ubi-nodejs-extension",
   "node-engine": "github.com/paketo-buildpacks/node-engine",
   "npm-install": "github.com/paketo-buildpacks/npm-install",
-  "watchexec": "github.com/paketo-buildpacks/watchexec"
+  "watchexec": "index.docker.io/paketobuildpacks/watchexec"
 }

integration/init_test.go

@@ -10,7 +10,6 @@ import (
 	"github.com/BurntSushi/toml"
 	"github.com/onsi/gomega/format"
 	"github.com/paketo-buildpacks/occam"
-	"github.com/paketo-buildpacks/occam/packagers"
 	"github.com/sclevine/spec"
 	"github.com/sclevine/spec/report"
 
@@ -53,6 +52,8 @@ var settings struct {
 }
 
 func TestIntegration(t *testing.T) {
+	var docker = occam.NewDocker()
+
 	format.MaxLength = 0
 	Expect := NewWithT(t).Expect
 	SetDefaultEventuallyTimeout(10 * time.Second)
@@ -74,8 +75,6 @@ func TestIntegration(t *testing.T) {
 	Expect(err).ToNot(HaveOccurred())
 
 	buildpackStore := occam.NewBuildpackStore()
-	libpakBuildpackStore := occam.NewBuildpackStore().WithPackager(packagers.NewLibpak())
-
 	pack := occam.NewPack()
 
 	builder, err := pack.Builder.Inspect.Execute()
@@ -99,10 +98,11 @@ func TestIntegration(t *testing.T) {
 	settings.Buildpacks.NPMInstall.Online, err = buildpackStore.Get.
 		Execute(settings.Config.NPMInstall)
 	Expect(err).ToNot(HaveOccurred())
-
-	settings.Buildpacks.Watchexec.Online, err = libpakBuildpackStore.Get.
-		Execute(settings.Config.Watchexec)
-	Expect(err).ToNot(HaveOccurred())
+	settings.Buildpacks.Watchexec.Online = settings.Config.Watchexec
+	err = docker.Pull.Execute(settings.Buildpacks.Watchexec.Online)
+	if err != nil {
+		t.Fatalf("Failed to pull %s: %s", settings.Buildpacks.Watchexec.Online, err)
+	}
 
 	suite := spec.New("Integration", spec.Report(report.Terminal{}), spec.Parallel())
 	suite("Default", testDefault)