test: merge API promise test cases with service import (#188)

Author: trivikr

src/transforms/v2-to-v3/__fixtures__/api-promise-service-import.input.js

@@ -0,0 +1,53 @@
+import DynamoDB from "aws-sdk/clients/dynamodb";
+
+const client = new DynamoDB();
+
+// Promise without params
+{
+  // async/await
+  try {
+    await client.listTables().promise();
+    console.log(data);
+  } catch (err) {
+    console.log(err, err.stack);
+  }
+
+  // .then() and .catch()
+  client
+    .listTables()
+    .promise()
+    .then((data) => console.log(data))
+    .catch((err) => console.log(err, err.stack));
+
+  // Client as class member
+  class ClientClassMember {
+    constructor(client = new DynamoDB()) {
+      this.client = client;
+    }
+  
+    async listTables() {
+      return await this.client.listTables().promise();
+    }
+  }
+
+  // Variable declarator
+  const listTablesPromise = client.listTables().promise();
+}
+
+// Promise with params
+{
+  // async/await
+  try {
+    await client.listTagsOfResource({ ResourceArn: "STRING_VALUE" }).promise();
+    console.log(data);
+  } catch (err) {
+    console.log(err, err.stack);
+  }
+
+  // .then() and .catch()
+  client
+    .listTagsOfResource({ ResourceArn: "STRING_VALUE" })
+    .promise()
+    .then((data) => console.log(data))
+    .catch((err) => console.log(err, err.stack));
+}

src/transforms/v2-to-v3/__fixtures__/api-promise-service-import.output.js

@@ -0,0 +1,51 @@
+import { DynamoDB } from "@aws-sdk/client-dynamodb";
+
+const client = new DynamoDB();
+
+// Promise without params
+{
+  // async/await
+  try {
+    await client.listTables();
+    console.log(data);
+  } catch (err) {
+    console.log(err, err.stack);
+  }
+
+  // .then() and .catch()
+  client
+    .listTables()
+    .then((data) => console.log(data))
+    .catch((err) => console.log(err, err.stack));
+
+  // Client as class member
+  class ClientClassMember {
+    constructor(client = new DynamoDB()) {
+      this.client = client;
+    }
+  
+    async listTables() {
+      return await this.client.listTables();
+    }
+  }
+
+  // Variable declarator
+  const listTablesPromise = client.listTables();
+}
+
+// Promise with params
+{
+  // async/await
+  try {
+    await client.listTagsOfResource({ ResourceArn: "STRING_VALUE" });
+    console.log(data);
+  } catch (err) {
+    console.log(err, err.stack);
+  }
+
+  // .then() and .catch()
+  client
+    .listTagsOfResource({ ResourceArn: "STRING_VALUE" })
+    .then((data) => console.log(data))
+    .catch((err) => console.log(err, err.stack));
+}