Writting first E2E test

Author: srbarrios

.devcontainer/test/Dockerfile

@@ -4,11 +4,15 @@
 
 FROM registry.suse.com/bci/golang:1.21
 
-RUN zypper -n install git make curl gcc && zypper clean -a
+RUN zypper -n install git make curl gcc podman systemd && zypper clean -a
 RUN go install github.com/onsi/ginkgo/v2/ginkgo@v2.20.1
 
 ENV PATH="/root/go/bin:$PATH"
 WORKDIR /workspace
 
-# Default command for debugging or running tests manually
-CMD [ "bash" ]
+# Indicate to systemd that it's running inside a container.
+# This prevents systemd from trying to start all host services.
+ENV container docker
+
+# /usr/sbin/init is the standard path for the systemd executable acting as init.
+CMD ["/usr/sbin/init"]

tests/e2e/e2e_suite_test.go

@@ -11,7 +11,7 @@ import (
 	. "github.com/onsi/gomega"
 )
 
-func TestE2e(t *testing.T) {
+func TestE2E(t *testing.T) {
 	RegisterFailHandler(Fail)
 	RunSpecs(t, "End-To-End Test Suite")
 }

tests/e2e/mgradm_test.go

@@ -5,10 +5,53 @@
 package e2e_test
 
 import (
+	"bytes"
+	"fmt"
+	"os/exec"
+
 	. "github.com/onsi/ginkgo/v2"
-	_ "github.com/onsi/gomega"
+	. "github.com/onsi/gomega"
 )
 
+// Define the mgradm binary path
+const mgradmPath = "/workspace/bin/mgradm"
+
+// runMgradmCommand is a helper function to execute mgradm and capture its output.
+// It returns the combined stdout+stderr and an error if the command fails to run.
+func runMgradmCommand(args []string) (string, error) {
+	cmd := exec.Command(mgradmPath, args...)
+
+	var stdoutBuffer bytes.Buffer
+	var stderrBuffer bytes.Buffer
+	cmd.Stdout = &stdoutBuffer
+	cmd.Stderr = &stderrBuffer
+
+	By(fmt.Sprintf("Running command: %s %v", mgradmPath, args))
+
+	err := cmd.Run()
+	output := stdoutBuffer.String() + stderrBuffer.String()
+
+	return output, err
+}
+
 var _ = Describe("mgradm tests", func() {
 
+	Context("install command", func() {
+		It("should run without error with default options", func() {
+			args := []string{"install", "podman", "--logLevel", "debug"}
+			output, err := runMgradmCommand(args)
+
+			Expect(err).To(Succeed(), "Command failed with error: %v\nOutput: %s", err, output)
+			Expect(output).To(ContainSubstring("Starting /workspace/bin/mgradm install podman --logLevel debug"))
+			Expect(output).To(ContainSubstring("Use of this software implies acceptance of the End User License Agreement."))
+			Expect(output).To(ContainSubstring("application log level=debug"))
+		})
+
+		It("should show help for install command", func() {
+			args := []string{"install", "--help"}
+			output, err := runMgradmCommand(args)
+			Expect(err).To(Succeed())
+			Expect(output).To(ContainSubstring("Install a new server"))
+		})
+	})
 })