Added tests for version command

cmd/version/version.go

@@ -14,7 +14,9 @@ var (
 	BUILD_CHECKSUM = ""
 )
 
-type command struct{}
+type command struct {
+	getVersionCmd func() (*debug.BuildInfo, bool)
+}
 
 // Describe the version command
 func (c command) Describe() string {
@@ -33,7 +35,7 @@ func (c command) Help() string {
 
 // Run the command, printing the version using either the debugbuild or tagged version
 func (c command) Run(context.Context) error {
-	bi, ok := debug.ReadBuildInfo()
+	bi, ok := c.getVersionCmd()
 	if !ok {
 		return errors.New("failed to read build info")
 	}
@@ -51,6 +53,7 @@ func (c command) Run(context.Context) error {
 
 // Setup the command
 func (c command) Setup() error {
+	c.getVersionCmd = debug.ReadBuildInfo
 	return nil
 }
 

cmd/version/version_test.go

@@ -0,0 +1,61 @@
+package version
+
+import (
+	"context"
+	"runtime/debug"
+	"testing"
+
+	"github.com/baalimago/go_away_boilerplate/pkg/testboil"
+)
+
+func TestCommand(t *testing.T) {
+	cmd := Command()
+
+	if cmd == nil {
+		t.Fatal("Expected command to be non-nil")
+	}
+
+	if cmd.Describe() != "print the version of wd-40" {
+		t.Fatalf("Unexpected describe: %v", cmd.Describe())
+	}
+
+	fs := cmd.Flagset()
+	if fs == nil {
+		t.Fatal("Expected flagset to be non-nil")
+	}
+
+	help := cmd.Help()
+	if help != "Print the version of wd-40" {
+		t.Fatalf("Unexpected help output: %v", help)
+	}
+}
+
+func TestRun(t *testing.T) {
+	cmd := Command()
+	ctx := context.Background()
+
+	t.Run("it should print version info correctly", func(t *testing.T) {
+		cmd.getVersionCmd = func() (*debug.BuildInfo, bool) {
+			return &debug.BuildInfo{
+				Main: debug.Module{
+					Version: "v1.2.3",
+					Sum:     "h1:checksum",
+				},
+				GoVersion: "go1.18",
+			}, true
+		}
+
+		// Capture output
+		got := testboil.CaptureStdout(t, func(t *testing.T) {
+			err := cmd.Run(ctx)
+			if err != nil {
+				t.Fatalf("Run failed: %v", err)
+			}
+		})
+
+		expected := "version: v1.2.3, go version: go1.18, checksum: h1:checksum\n"
+		if got != expected {
+			t.Fatalf("Expected output %s, got %s", expected, got)
+		}
+	})
+}