Find and fix empty Expect()s

That previous commit made me wonder if there are any other
instances of Expect() with no assertions.

   grep Expect test/e2e/*_test.go |egrep -v '\.(To|NotTo|Should)'

...finds a couple of handfuls, most of which are OK (continued
on the next line) but a few of which are bugs. Fix those.

Signed-off-by: Ed Santiago <santiago@redhat.com>

test/e2e/events_test.go

@@ -4,7 +4,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"os"
-	"strings"
 	"sync"
 	"time"
 
@@ -62,12 +61,10 @@ var _ = Describe("Podman events", func() {
 		result := podmanTest.Podman([]string{"events", "--stream=false", "--filter", "event=start"})
 		result.WaitWithDefaultTimeout()
 		Expect(result).Should(Exit(0))
-		Expect(len(result.OutputToStringArray()) >= 1)
+		Expect(len(result.OutputToStringArray())).To(BeNumerically(">=", 1), "Number of events")
 	})
 
 	It("podman events with an event filter and container=cid", func() {
-		Skip("Does not work on v2")
-		SkipIfNotFedora()
 		_, ec, cid := podmanTest.RunLsContainer("")
 		Expect(ec).To(Equal(0))
 		_, ec2, cid2 := podmanTest.RunLsContainer("")
@@ -76,8 +73,10 @@ var _ = Describe("Podman events", func() {
 		result := podmanTest.Podman([]string{"events", "--stream=false", "--filter", "event=start", "--filter", fmt.Sprintf("container=%s", cid)})
 		result.WaitWithDefaultTimeout()
 		Expect(result).Should(Exit(0))
-		Expect(len(result.OutputToStringArray())).To(Equal(1))
-		Expect(!strings.Contains(result.OutputToString(), cid2))
+		events := result.OutputToStringArray()
+		Expect(len(events)).To(Equal(1), "number of events")
+		Expect(events[0]).To(ContainSubstring(cid), "event log includes CID")
+		Expect(events[0]).To(Not(ContainSubstring(cid2)), "event log does not include second CID")
 	})
 
 	It("podman events with a type and filter container=id", func() {
@@ -101,8 +100,12 @@ var _ = Describe("Podman events", func() {
 		result := podmanTest.Podman([]string{"events", "--stream=false", "--filter", "type=pod", "--filter", "pod=foobarpod"})
 		result.WaitWithDefaultTimeout()
 		Expect(result).Should(Exit(0))
-		fmt.Println(result.OutputToStringArray())
-		Expect(len(result.OutputToStringArray()) >= 2)
+		events := result.OutputToStringArray()
+		fmt.Println(events)
+		Expect(len(events)).To(BeNumerically(">=", 2), "Number of events")
+		Expect(events).To(ContainElement(ContainSubstring(" pod create ")))
+		Expect(events).To(ContainElement(ContainSubstring(" pod stop ")))
+		Expect(events).To(ContainElement(ContainSubstring("name=foobarpod")))
 	})
 
 	It("podman events --since", func() {

test/e2e/inspect_test.go

@@ -2,7 +2,6 @@ package integration
 
 import (
 	"os"
-	"strings"
 
 	. "github.com/containers/podman/v3/test/utils"
 	. "github.com/onsi/ginkgo"
@@ -61,7 +60,7 @@ var _ = Describe("Podman inspect", func() {
 		Expect(inspect).Should(Exit(0))
 		// output should not be empty
 		// test validates fix for https://github.com/containers/podman/issues/8785
-		Expect(strings.Contains(inspect.OutputToString(), "TEST"))
+		Expect(inspect.OutputToString()).To(ContainSubstring("TEST="), ".Config.Env")
 
 		session = podmanTest.Podman([]string{"rmi", "envwithtab"})
 		session.WaitWithDefaultTimeout()
@@ -76,7 +75,7 @@ var _ = Describe("Podman inspect", func() {
 		result := podmanTest.Podman([]string{"images", "-q", "--no-trunc", ALPINE})
 		result.WaitWithDefaultTimeout()
 		Expect(session).Should(Exit(0))
-		Expect(strings.Contains(result.OutputToString(), session.OutputToString()))
+		Expect(result.OutputToStringArray()).To(ContainElement("sha256:"+session.OutputToString()), "'podman images -q --no-truncate' includes 'podman inspect --format .ID'")
 	})
 
 	It("podman inspect specified type", func() {

test/e2e/save_test.go

@@ -230,7 +230,7 @@ default-docker:
 		Expect(session).Should(Exit(0))
 		ids := session.OutputToStringArray()
 
-		Expect(len(RESTORE_IMAGES), len(ids))
+		Expect(len(ids)).To(BeNumerically(">", 1), "We need to have *some* images to save")
 		multiImageSave(podmanTest, ids)
 	})
 })