cmd: refactor tui and launch (#14609)

cmd/launch/registry_test_helpers_test.go

@@ -0,0 +1,21 @@
+package launch
+
+import "strings"
+
+// OverrideIntegration replaces one registry entry's runner for tests and returns a restore function.
+func OverrideIntegration(name string, runner Runner) func() {
+	spec, err := LookupIntegrationSpec(name)
+	if err != nil {
+		key := strings.ToLower(name)
+		integrationSpecsByName[key] = &IntegrationSpec{Name: key, Runner: runner}
+		return func() {
+			delete(integrationSpecsByName, key)
+		}
+	}
+
+	original := spec.Runner
+	spec.Runner = runner
+	return func() {
+		spec.Runner = original
+	}
+}