TASK22109: email api contract cleanup and phase21 coverage

tests/phase21/_shared.cjs

@@ -7,13 +7,32 @@ const rootDir = path.resolve(__dirname, "..", "..");
 const loadModule = (relativePath, injected = {}) => {
     const filePath = path.join(rootDir, relativePath);
     let source = fs.readFileSync(filePath, "utf8");
+    const defaultExportNames = [];
 
     source = source.replace(/import[\s\S]*?from\s+"[^"]+";\n?/g, "");
-    source = source.replace(/export const\s+/g, "const ");
     source = source.replace(
-        /export default\s+(\w+);/g,
-        "module.exports.default = $1;"
+        /export default async function\s+(\w+)\s*\(/g,
+        (match, name) => {
+            defaultExportNames.push(name);
+            return `async function ${name}(`;
+        }
     );
+    source = source.replace(
+        /export default function\s+(\w+)\s*\(/g,
+        (match, name) => {
+            defaultExportNames.push(name);
+            return `function ${name}(`;
+        }
+    );
+    source = source.replace(/export const\s+/g, "const ");
+    source = source.replace(/export default\s+(\w+);/g, (match, name) => {
+        defaultExportNames.push(name);
+        return `module.exports.default = ${name};`;
+    });
+
+    defaultExportNames.forEach((name) => {
+        source += `\nif (typeof ${name} !== "undefined" && !module.exports.default) module.exports.default = ${name};\n`;
+    });
 
     source +=
         '\nif (typeof respondSuccess !== "undefined") module.exports.respondSuccess = respondSuccess;\n';