initial version of cli integration tests

Docker-DCO-1.1-Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> (github: unclejack)

integration-cli/docker_cli_top_test.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"fmt"
+	"os/exec"
+	"strings"
+	"testing"
+)
+
+func TestTop(t *testing.T) {
+	runCmd := exec.Command(dockerBinary, "run", "-i", "-d", "busybox", "sleep", "20")
+	out, _, err := runCommandWithOutput(runCmd)
+	errorOut(err, t, fmt.Sprintf("failed to start the container: %v", err))
+
+	cleanedContainerID := stripTrailingCharacters(out)
+
+	topCmd := exec.Command(dockerBinary, "top", cleanedContainerID)
+	out, _, err = runCommandWithOutput(topCmd)
+	errorOut(err, t, fmt.Sprintf("failed to run top: %v %v", out, err))
+
+	killCmd := exec.Command(dockerBinary, "kill", cleanedContainerID)
+	_, err = runCommand(killCmd)
+	errorOut(err, t, fmt.Sprintf("failed to kill container: %v", err))
+
+	go deleteContainer(cleanedContainerID)
+
+	if !strings.Contains(out, "sleep 20") {
+		t.Fatal("top should've listed sleep 20 in the process list")
+	}
+
+	logDone("top - sleep process should be listed")
+}