Create framework for varlink endpoint integration tests

add the ability to write integration tests similar to our e2e tests for
the varlink endpoints.

Signed-off-by: baude <bbaude@redhat.com>

test/endpoint/exists_test.go

@@ -0,0 +1,66 @@
+package endpoint
+
+import (
+	"os"
+
+	. "github.com/containers/libpod/test/utils"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Podman pull", func() {
+	var (
+		tempdir      string
+		err          error
+		endpointTest *EndpointTestIntegration
+	)
+
+	BeforeEach(func() {
+		tempdir, err = CreateTempDirInTempDir()
+		if err != nil {
+			os.Exit(1)
+		}
+		endpointTest = Setup(tempdir)
+		endpointTest.StartVarlinkWithCache()
+	})
+
+	AfterEach(func() {
+		endpointTest.Cleanup()
+		//f := CurrentGinkgoTestDescription()
+		//processTestResult(f)
+
+	})
+
+	It("image exists in local storage", func() {
+		result := endpointTest.Varlink("ImageExists", makeNameMessage(ALPINE), false)
+		Expect(result.ExitCode()).To(BeZero())
+
+		output := result.OutputToMapToInt()
+		Expect(output["exists"]).To(BeZero())
+	})
+
+	It("image exists in local storage by shortname", func() {
+		result := endpointTest.Varlink("ImageExists", makeNameMessage("alpine"), false)
+		Expect(result.ExitCode()).To(BeZero())
+
+		output := result.OutputToMapToInt()
+		Expect(output["exists"]).To(BeZero())
+	})
+
+	It("image does not exist in local storage", func() {
+		result := endpointTest.Varlink("ImageExists", makeNameMessage("alpineforest"), false)
+		Expect(result.ExitCode()).To(BeZero())
+
+		output := result.OutputToMapToInt()
+		Expect(output["exists"]).To(Equal(1))
+	})
+
+	It("container exists in local storage by name", func() {
+		_ = endpointTest.startTopContainer("top")
+		result := endpointTest.Varlink("ContainerExists", makeNameMessage("top"), false)
+		Expect(result.ExitCode()).To(BeZero())
+		output := result.OutputToMapToInt()
+		Expect(output["exists"]).To(BeZero())
+	})
+
+})