Stamp the build version into the binary (closes #253)

internal/handlers/footer_version_test.go

@@ -0,0 +1,38 @@
+package handlers_test
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"sneak.berlin/go/webhooker/internal/globals"
+	"sneak.berlin/go/webhooker/internal/handlers"
+	"sneak.berlin/go/webhooker/internal/session"
+)
+
+// The footer in base.html falls back to the literal "dev" when the
+// template data carries no version, which is what every page rendered
+// while nothing supplied one. The operator uses the footer to tell
+// which build is live, so it has to carry the stamped value.
+func TestFooterReportsStampedVersion(t *testing.T) {
+	t.Parallel()
+
+	var (
+		h    *handlers.Handlers
+		sess *session.Session
+		g    *globals.Globals
+	)
+
+	app := newTestApp(t, &h, &sess, &g)
+	app.RequireStart()
+
+	t.Cleanup(app.RequireStop)
+
+	g.Version = "v9.9.9-test"
+
+	html := renderPage(t, h, sess, "login.html", map[string]any{
+		dataKeyError: "",
+	})
+
+	assert.Contains(t, html, "<span>v9.9.9-test</span>")
+	assert.NotContains(t, html, "<span>dev</span>")
+}