Ensure that image/container inspect are specialized

We are currently able to inspect images with
`podman container inspect` and containers with
`podman image inspect` and neither of those seem correct. This
ensures that the appropriate flags, and only the appropriate
flags, are available for each specialized exec, and they can only
inspect the specific type they were intended to.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>

test/e2e/inspect_test.go

@@ -179,4 +179,49 @@ var _ = Describe("Podman inspect", func() {
 		session.WaitWithDefaultTimeout()
 		Expect(session.ExitCode()).To(Not(Equal(0)))
 	})
+
+	It("podman [image,container] inspect on image", func() {
+		baseInspect := podmanTest.Podman([]string{"inspect", ALPINE})
+		baseInspect.WaitWithDefaultTimeout()
+		Expect(baseInspect.ExitCode()).To(Equal(0))
+		baseJSON := baseInspect.InspectImageJSON()
+		Expect(len(baseJSON)).To(Equal(1))
+
+		ctrInspect := podmanTest.Podman([]string{"container", "inspect", ALPINE})
+		ctrInspect.WaitWithDefaultTimeout()
+		Expect(ctrInspect.ExitCode()).To(Not(Equal(0)))
+
+		imageInspect := podmanTest.Podman([]string{"image", "inspect", ALPINE})
+		imageInspect.WaitWithDefaultTimeout()
+		Expect(imageInspect.ExitCode()).To(Equal(0))
+		imageJSON := imageInspect.InspectImageJSON()
+		Expect(len(imageJSON)).To(Equal(1))
+
+		Expect(baseJSON[0].ID).To(Equal(imageJSON[0].ID))
+	})
+
+	It("podman [image, container] inspect on container", func() {
+		ctrName := "testCtr"
+		create := podmanTest.Podman([]string{"create", "--name", ctrName, ALPINE, "sh"})
+		create.WaitWithDefaultTimeout()
+		Expect(create.ExitCode()).To(Equal(0))
+
+		baseInspect := podmanTest.Podman([]string{"inspect", ctrName})
+		baseInspect.WaitWithDefaultTimeout()
+		Expect(baseInspect.ExitCode()).To(Equal(0))
+		baseJSON := baseInspect.InspectContainerToJSON()
+		Expect(len(baseJSON)).To(Equal(1))
+
+		ctrInspect := podmanTest.Podman([]string{"container", "inspect", ctrName})
+		ctrInspect.WaitWithDefaultTimeout()
+		Expect(ctrInspect.ExitCode()).To(Equal(0))
+		ctrJSON := ctrInspect.InspectContainerToJSON()
+		Expect(len(ctrJSON)).To(Equal(1))
+
+		imageInspect := podmanTest.Podman([]string{"image", "inspect", ctrName})
+		imageInspect.WaitWithDefaultTimeout()
+		Expect(imageInspect.ExitCode()).To(Not(Equal(0)))
+
+		Expect(baseJSON[0].ID).To(Equal(ctrJSON[0].ID))
+	})
 })