fix(medusa): Add querying func. on customer retrievals (#181)

integration-tests/api/helpers/customer-seeder.js

@@ -0,0 +1,27 @@
+const { Customer, Address } = require("@medusajs/medusa");
+
+module.exports = async (connection, data = {}) => {
+  const manager = connection.manager;
+
+  await manager.insert(Customer, {
+    id: "test-customer-1",
+    email: "test1@email.com",
+  });
+
+  await manager.insert(Customer, {
+    id: "test-customer-2",
+    email: "test2@email.com",
+  });
+
+  await manager.insert(Customer, {
+    id: "test-customer-3",
+    email: "test3@email.com",
+  });
+
+  await manager.insert(Address, {
+    id: "test-address",
+    first_name: "Lebron",
+    last_name: "James",
+    customer_id: "test-customer-1",
+  });
+};