github.com/loggregator/cli@v6.33.1-0.20180224010324-82334f081791+incompatible/integration/experimental/v3_set_droplet_command_test.go

package experimental

import (
	"regexp"

	"code.cloudfoundry.org/cli/integration/helpers"
	. "github.com/onsi/ginkgo"
	. "github.com/onsi/gomega"
	. "github.com/onsi/gomega/gbytes"
	. "github.com/onsi/gomega/gexec"
	. "github.com/onsi/gomega/ghttp"
)

var _ = Describe("v3-set-droplet command", func() {
	var (
		orgName   string
		spaceName string
		appName   string
	)

	BeforeEach(func() {
		orgName = helpers.NewOrgName()
		spaceName = helpers.NewSpaceName()
		appName = helpers.PrefixedRandomName("app")
	})

	Describe("help", func() {
		Context("when --help flag is set", func() {
			It("Displays command usage to output", func() {
				session := helpers.CF("v3-set-droplet", "--help")

				Eventually(session).Should(Say("NAME:"))
				Eventually(session).Should(Say("v3-set-droplet - Set the droplet used to run an app"))
				Eventually(session).Should(Say("USAGE:"))
				Eventually(session).Should(Say("cf v3-set-droplet APP_NAME -d DROPLET_GUID"))
				Eventually(session).Should(Say("OPTIONS:"))
				Eventually(session).Should(Say("--droplet-guid, -d\\s+The guid of the droplet to use"))

				Eventually(session).Should(Exit(0))
			})
		})
	})

	Context("when the app name is not provided", func() {
		It("tells the user that the app name is required, prints help text, and exits 1", func() {
			session := helpers.CF("v3-set-droplet", "-d", "some-droplet-guid")

			Eventually(session.Err).Should(Say("Incorrect Usage: the required argument `APP_NAME` was not provided"))
			Eventually(session).Should(Say("NAME:"))
			Eventually(session).Should(Exit(1))
		})
	})

	It("displays the experimental warning", func() {
		session := helpers.CF("v3-set-droplet", appName, "--droplet-guid", "some-droplet-guid")
		Eventually(session).Should(Say("This command is in EXPERIMENTAL stage and may change without notice"))
		Eventually(session).Should(Exit())
	})

	Context("when the package GUID flag is missing", func() {
		It("displays incorrect usage", func() {
			session := helpers.CF("v3-set-droplet", "some-app")

			Eventually(session.Err).Should(Say("Incorrect Usage: the required flag `-d, --droplet-guid' was not specified"))
			Eventually(session).Should(Say("NAME:"))

			Eventually(session).Should(Exit(1))
		})
	})

	Context("when the environment is not setup correctly", func() {
		Context("when no API endpoint is set", func() {
			BeforeEach(func() {
				helpers.UnsetAPI()
			})

			It("fails with no API endpoint set message", func() {
				session := helpers.CF("v3-set-droplet", appName, "--droplet-guid", "some-droplet-guid")
				Eventually(session).Should(Say("FAILED"))
				Eventually(session.Err).Should(Say("No API endpoint set\\. Use 'cf login' or 'cf api' to target an endpoint\\."))
				Eventually(session).Should(Exit(1))
			})
		})

		Context("when the v3 api does not exist", func() {
			var server *Server

			BeforeEach(func() {
				server = helpers.StartAndTargetServerWithoutV3API()
			})

			AfterEach(func() {
				server.Close()
			})

			It("fails with error message that the minimum version is not met", func() {
				session := helpers.CF("v3-set-droplet", appName, "--droplet-guid", "some-droplet-guid")
				Eventually(session).Should(Say("FAILED"))
				Eventually(session.Err).Should(Say("This command requires CF API version 3\\.27\\.0 or higher\\."))
				Eventually(session).Should(Exit(1))
			})
		})

		Context("when the v3 api version is lower than the minimum version", func() {
			var server *Server

			BeforeEach(func() {
				server = helpers.StartAndTargetServerWithV3Version("3.0.0")
			})

			AfterEach(func() {
				server.Close()
			})

			It("fails with error message that the minimum version is not met", func() {
				session := helpers.CF("v3-set-droplet", appName, "--droplet-guid", "some-droplet-guid")
				Eventually(session).Should(Say("FAILED"))
				Eventually(session.Err).Should(Say("This command requires CF API version 3\\.27\\.0 or higher\\."))
				Eventually(session).Should(Exit(1))
			})
		})

		Context("when not logged in", func() {
			BeforeEach(func() {
				helpers.LogoutCF()
			})

			It("fails with not logged in message", func() {
				session := helpers.CF("v3-set-droplet", appName, "--droplet-guid", "some-droplet-guid")
				Eventually(session).Should(Say("FAILED"))
				Eventually(session.Err).Should(Say("Not logged in\\. Use 'cf login' to log in\\."))
				Eventually(session).Should(Exit(1))
			})
		})

		Context("when there is no org set", func() {
			BeforeEach(func() {
				helpers.LogoutCF()
				helpers.LoginCF()
			})

			It("fails with no org targeted error message", func() {
				session := helpers.CF("v3-set-droplet", appName, "--droplet-guid", "some-droplet-guid")
				Eventually(session).Should(Say("FAILED"))
				Eventually(session.Err).Should(Say("No org targeted, use 'cf target -o ORG' to target an org\\."))
				Eventually(session).Should(Exit(1))
			})
		})

		Context("when there is no space set", func() {
			BeforeEach(func() {
				helpers.LogoutCF()
				helpers.LoginCF()
				helpers.TargetOrg(ReadOnlyOrg)
			})

			It("fails with no space targeted error message", func() {
				session := helpers.CF("v3-set-droplet", appName, "--droplet-guid", "some-droplet-guid")
				Eventually(session).Should(Say("FAILED"))
				Eventually(session.Err).Should(Say("No space targeted, use 'cf target -s SPACE' to target a space\\."))
				Eventually(session).Should(Exit(1))
			})
		})
	})

	Context("when the environment is set up correctly", func() {
		BeforeEach(func() {
			setupCF(orgName, spaceName)
		})

		AfterEach(func() {
			helpers.QuickDeleteOrg(orgName)
		})

		Context("when the app exists", func() {
			var dropletGUID string

			BeforeEach(func() {
				var packageGUID string
				Eventually(helpers.CF("v3-create-app", appName)).Should(Exit(0))

				helpers.WithHelloWorldApp(func(appDir string) {
					pkgSession := helpers.CustomCF(helpers.CFEnv{WorkingDirectory: appDir}, "v3-create-package", appName)
					Eventually(pkgSession).Should(Exit(0))
					regex, err := regexp.Compile(`package guid: (.+)`)
					Expect(err).ToNot(HaveOccurred())
					matches := regex.FindStringSubmatch(string(pkgSession.Out.Contents()))
					Expect(matches).To(HaveLen(2))

					packageGUID = matches[1]
				})

				stageSession := helpers.CF("v3-stage", appName, "--package-guid", packageGUID)
				Eventually(stageSession).Should(Exit(0))

				regex, err := regexp.Compile(`droplet guid:\s+(.+)`)
				Expect(err).ToNot(HaveOccurred())
				matches := regex.FindStringSubmatch(string(stageSession.Out.Contents()))
				Expect(matches).To(HaveLen(2))

				dropletGUID = matches[1]
			})

			It("sets the droplet for the app", func() {
				userName, _ := helpers.GetCredentials()

				session := helpers.CF("v3-set-droplet", appName, "-d", dropletGUID)
				Eventually(session).Should(Say("Setting app %s to droplet %s in org %s / space %s as %s\\.\\.\\.", appName, dropletGUID, orgName, spaceName, userName))
				Eventually(session).Should(Say("OK"))

				Eventually(session).Should(Exit(0))
			})

			Context("when the app does not exist", func() {
				It("displays app not found and exits 1", func() {
					invalidAppName := "invalid-app-name"
					session := helpers.CF("v3-set-droplet", invalidAppName, "-d", dropletGUID)
					userName, _ := helpers.GetCredentials()

					Eventually(session).Should(Say("Setting app %s to droplet %s in org %s / space %s as %s\\.\\.\\.", invalidAppName, dropletGUID, orgName, spaceName, userName))
					Eventually(session.Err).Should(Say("App %s not found", invalidAppName))
					Eventually(session).Should(Say("FAILED"))

					Eventually(session).Should(Exit(1))
				})
			})

			Context("when the droplet does not exist", func() {
				It("displays droplet not found and exits 1", func() {
					invalidDropletGUID := "some-droplet-guid"
					session := helpers.CF("v3-set-droplet", appName, "-d", invalidDropletGUID)
					userName, _ := helpers.GetCredentials()

					Eventually(session).Should(Say("Setting app %s to droplet %s in org %s / space %s as %s\\.\\.\\.", appName, invalidDropletGUID, orgName, spaceName, userName))
					Eventually(session.Err).Should(Say("Unable to assign droplet: Unable to assign current droplet\\. Ensure the droplet exists and belongs to this app\\."))
					Eventually(session).Should(Say("FAILED"))
					Eventually(session).Should(Exit(1))
				})
			})
		})
	})
})