diff --git a/ts/.husky/pre-commit b/ts/.husky/pre-commit
old mode 100644
new mode 100755
diff --git a/ts/package.json b/ts/package.json
index 2698ceb..c0329ac 100644
--- a/ts/package.json
+++ b/ts/package.json
@@ -12,7 +12,7 @@
   ],
   "scripts": {
     "build": "rm -rf dist/; tsc",
-    "test": "jest",
+    "test": "jest --forceExit --detectOpenHandles",
     "prepare": "cd .. && husky install ts/.husky",
     "lint": "eslint --fix"
   },
@@ -37,6 +37,7 @@
     "typescript": "^4.6.3"
   },
   "dependencies": {
+    "@solana/spl-token": "^0.2.0",
     "@solana/web3.js": "^1.37.0"
   }
 }
diff --git a/ts/src/coin.ts b/ts/src/coin.ts
new file mode 100644
index 0000000..ab703d3
--- /dev/null
+++ b/ts/src/coin.ts
@@ -0,0 +1,7 @@
+import { PublicKey } from "@solana/web3.js";
+
+export interface Coin {
+  symbol: string;
+  decimals: number;
+  mint: PublicKey;
+}
diff --git a/ts/src/dex.ts b/ts/src/dex.ts
index 476cbea..755983f 100644
--- a/ts/src/dex.ts
+++ b/ts/src/dex.ts
@@ -1,13 +1,45 @@
-import { PublicKey } from "@solana/web3.js";
+import { createMint } from "@solana/spl-token";
+import { Connection, Keypair, PublicKey } from "@solana/web3.js";
+import { Coin } from "./coin";
 export class Dex {
   public address: PublicKey;
 
-  constructor(address: PublicKey) {
+  public coins: Coin[];
+
+  connection: Connection;
+
+  constructor(address: PublicKey, connection: Connection) {
     this.address = address;
+    this.connection = connection;
+    this.coins = [];
   }
 
-  public hello_world(x: number): string {
-    const c = x + 10;
-    return `hello ${c}`;
+  public createCoin = async (
+    symbol: string,
+    decimals: number,
+    payer: Keypair,
+    mintAuthority: PublicKey | null,
+    freezeAuthority: PublicKey | null,
+  ): Promise<PublicKey> => {
+    const mint = await createMint(
+      this.connection,
+      payer,
+      mintAuthority,
+      freezeAuthority,
+      decimals,
+    );
+    this.coins.push({
+      symbol,
+      decimals,
+      mint,
+    });
+
+    return mint;
+  };
+
+  public getCoin(symbol: string): Coin | null {
+    const coin = this.coins.find((coin) => coin.symbol === symbol);
+
+    return coin ? coin : null;
   }
 }
diff --git a/ts/tests/dev.spec.ts b/ts/tests/dev.spec.ts
index 3956d69..4b35902 100644
--- a/ts/tests/dev.spec.ts
+++ b/ts/tests/dev.spec.ts
@@ -1,6 +1,36 @@
-import { hello_world } from "../src/index";
+import {
+  Connection,
+  Keypair,
+  LAMPORTS_PER_SOL,
+  PublicKey,
+} from "@solana/web3.js";
+import { Dex } from "../src/dex";
+
 describe("Serum Dev Tools", () => {
-  test("sample test", () => {
-    expect(hello_world(2)).toBe("hello 2");
+  const connection = new Connection("http://localhost:8899", "confirmed");
+  const owner = Keypair.generate();
+
+  const dexAddress = new PublicKey(
+    "8mdYjA9qo2qN5s8TF7gQvkFtijjxBtcYw6vCiPuyeNq7",
+  );
+
+  const dex = new Dex(dexAddress, connection);
+
+  beforeAll(async () => {
+    const tx = await connection.requestAirdrop(
+      owner.publicKey,
+      5 * LAMPORTS_PER_SOL,
+    );
+    await connection.confirmTransaction(tx);
+  });
+
+  it("can create coin", async () => {
+    const mint = await dex.createCoin("SAYA", 6, owner, owner.publicKey, null);
+
+    const coin = dex.getCoin("SAYA");
+
+    expect(coin.symbol).toBe("SAYA");
+    expect(coin.decimals).toBe(6);
+    expect(coin.mint).toBe(mint);
   });
 });
diff --git a/ts/tsconfig.json b/ts/tsconfig.json
index 1839d6f..0cff0d7 100644
--- a/ts/tsconfig.json
+++ b/ts/tsconfig.json
@@ -4,7 +4,8 @@
     "target": "es2015",
     "declaration": true,
     "outDir": "./dist",
-    "rootDir": "./src"
+    "rootDir": "./src",
+    "types": ["jest"]
   },
-  "include": ["src/**/*"]
+  "include": ["src/**/*", "**/*.spec.ts", "**/*.test.ts"]
 }
diff --git a/ts/yarn.lock b/ts/yarn.lock
index c9b4a1c..eec65a3 100644
--- a/ts/yarn.lock
+++ b/ts/yarn.lock
@@ -336,6 +336,18 @@
     "@ethersproject/logger" "^5.6.0"
     hash.js "1.1.7"
 
+"@hapi/hoek@^9.0.0":
+  version "9.2.1"
+  resolved "https://registry.yarnpkg.com/@hapi/hoek/-/hoek-9.2.1.tgz#9551142a1980503752536b5050fd99f4a7f13b17"
+  integrity sha512-gfta+H8aziZsm8pZa0vj04KO6biEiisppNgA1kbJvFrrWu9Vm7eaUEy76DIxsuTaWvti5fkJVhllWc6ZTE+Mdw==
+
+"@hapi/topo@^5.0.0":
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/@hapi/topo/-/topo-5.1.0.tgz#dc448e332c6c6e37a4dc02fd84ba8d44b9afb012"
+  integrity sha512-foQZKJig7Ob0BMAYBfcJk8d77QtOe7Wo4ox7ff1lQYoNNAb6jwcY1ncdoy2e9wQZzvNy7ODZCYJkK8kzmcAnAg==
+  dependencies:
+    "@hapi/hoek" "^9.0.0"
+
 "@humanwhocodes/config-array@^0.9.2":
   version "0.9.5"
   resolved "https://registry.yarnpkg.com/@humanwhocodes/config-array/-/config-array-0.9.5.tgz#2cbaf9a89460da24b5ca6531b8bbfc23e1df50c7"
@@ -574,6 +586,23 @@
     "@nodelib/fs.scandir" "2.1.5"
     fastq "^1.6.0"
 
+"@sideway/address@^4.1.3":
+  version "4.1.4"
+  resolved "https://registry.yarnpkg.com/@sideway/address/-/address-4.1.4.tgz#03dccebc6ea47fdc226f7d3d1ad512955d4783f0"
+  integrity sha512-7vwq+rOHVWjyXxVlR76Agnvhy8I9rpzjosTESvmhNeXOXdZZB15Fl+TI9x1SiHZH5Jv2wTGduSxFDIaq0m3DUw==
+  dependencies:
+    "@hapi/hoek" "^9.0.0"
+
+"@sideway/formula@^3.0.0":
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/@sideway/formula/-/formula-3.0.0.tgz#fe158aee32e6bd5de85044be615bc08478a0a13c"
+  integrity sha512-vHe7wZ4NOXVfkoRb8T5otiENVlT7a3IAiw7H5M2+GO+9CDgcVUUsX1zalAztCmwyOr2RUTGJdgB+ZvSVqmdHmg==
+
+"@sideway/pinpoint@^2.0.0":
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/@sideway/pinpoint/-/pinpoint-2.0.0.tgz#cff8ffadc372ad29fd3f78277aeb29e632cc70df"
+  integrity sha512-RNiOoTPkptFtSVzQevY/yWtZwf/RxyVnPy/OcA9HBM3MlGDnBEYL5B41H0MTn0Uec8Hi+2qUtTfG2WWZBmMejQ==
+
 "@sinonjs/commons@^1.7.0":
   version "1.8.3"
   resolved "https://registry.yarnpkg.com/@sinonjs/commons/-/commons-1.8.3.tgz#3802ddd21a50a949b6721ddd72da36e67e7f1b2d"
@@ -588,6 +617,16 @@
   dependencies:
     "@sinonjs/commons" "^1.7.0"
 
+"@solana/buffer-layout-utils@^0.2.0":
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/@solana/buffer-layout-utils/-/buffer-layout-utils-0.2.0.tgz#b45a6cab3293a2eb7597cceb474f229889d875ca"
+  integrity sha512-szG4sxgJGktbuZYDg2FfNmkMi0DYQoVjN2h7ta1W1hPrwzarcFLBq9UpX1UjNXsNpT9dn+chgprtWGioUAr4/g==
+  dependencies:
+    "@solana/buffer-layout" "^4.0.0"
+    "@solana/web3.js" "^1.32.0"
+    bigint-buffer "^1.1.5"
+    bignumber.js "^9.0.1"
+
 "@solana/buffer-layout@^4.0.0":
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/@solana/buffer-layout/-/buffer-layout-4.0.0.tgz#75b1b11adc487234821c81dfae3119b73a5fd734"
@@ -595,6 +634,36 @@
   dependencies:
     buffer "~6.0.3"
 
+"@solana/spl-token@^0.2.0":
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/@solana/spl-token/-/spl-token-0.2.0.tgz#329bb6babb5de0f9c40035ddb1657f01a8347acd"
+  integrity sha512-RWcn31OXtdqIxmkzQfB2R+WpsJOVS6rKuvpxJFjvik2LyODd+WN58ZP3Rpjpro03fscGAkzlFuP3r42doRJgyQ==
+  dependencies:
+    "@solana/buffer-layout" "^4.0.0"
+    "@solana/buffer-layout-utils" "^0.2.0"
+    "@solana/web3.js" "^1.32.0"
+    start-server-and-test "^1.14.0"
+
+"@solana/web3.js@^1.32.0":
+  version "1.37.1"
+  resolved "https://registry.yarnpkg.com/@solana/web3.js/-/web3.js-1.37.1.tgz#5a4d30a4cf79c4598e0a437e841c7942e31be74c"
+  integrity sha512-1zm1blRU6ANb8bOfONibKkNKoMyzE1e0Z88MagyRLF1AmfHc+18lFvqxSQKUdazLMHcioZ28h+GfyAaeCT63iA==
+  dependencies:
+    "@babel/runtime" "^7.12.5"
+    "@ethersproject/sha2" "^5.5.0"
+    "@solana/buffer-layout" "^4.0.0"
+    bn.js "^5.0.0"
+    borsh "^0.7.0"
+    bs58 "^4.0.1"
+    buffer "6.0.1"
+    cross-fetch "^3.1.4"
+    jayson "^3.4.4"
+    js-sha3 "^0.8.0"
+    rpc-websockets "^7.4.2"
+    secp256k1 "^4.0.2"
+    superstruct "^0.14.2"
+    tweetnacl "^1.0.0"
+
 "@solana/web3.js@^1.37.0":
   version "1.37.0"
   resolved "https://registry.yarnpkg.com/@solana/web3.js/-/web3.js-1.37.0.tgz#167b5b5d4aedc151237d9230b6142da068b0af34"
@@ -1009,6 +1078,13 @@ asynckit@^0.4.0:
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
   integrity sha1-x57Zf380y48robyXkLzDZkdLS3k=
 
+axios@^0.21.1:
+  version "0.21.4"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-0.21.4.tgz#c67b90dc0568e5c1cf2b0b858c43ba28e2eda575"
+  integrity sha512-ut5vewkiu8jjGBdqpM44XxjuCjq9LAKeHVmoVfHVzy8eHgxxq8SbAVQNovDA8mVi05kP0Ea/n/UzcSHcTJQfNg==
+  dependencies:
+    follow-redirects "^1.14.0"
+
 babel-jest@^27.5.1:
   version "27.5.1"
   resolved "https://registry.yarnpkg.com/babel-jest/-/babel-jest-27.5.1.tgz#a1bf8d61928edfefd21da27eb86a695bfd691444"
@@ -1087,6 +1163,30 @@ base64-js@^1.3.1:
   resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.5.1.tgz#1b1b440160a5bf7ad40b650f095963481903930a"
   integrity sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==
 
+bigint-buffer@^1.1.5:
+  version "1.1.5"
+  resolved "https://registry.yarnpkg.com/bigint-buffer/-/bigint-buffer-1.1.5.tgz#d038f31c8e4534c1f8d0015209bf34b4fa6dd442"
+  integrity sha512-trfYco6AoZ+rKhKnxA0hgX0HAbVP/s808/EuDSe2JDzUnCp/xAsli35Orvk67UrTEcwuxZqYZDmfA2RXJgxVvA==
+  dependencies:
+    bindings "^1.3.0"
+
+bignumber.js@^9.0.1:
+  version "9.0.2"
+  resolved "https://registry.yarnpkg.com/bignumber.js/-/bignumber.js-9.0.2.tgz#71c6c6bed38de64e24a65ebe16cfcf23ae693673"
+  integrity sha512-GAcQvbpsM0pUb0zw1EI0KhQEZ+lRwR5fYaAp3vPOYuP7aDvGy6cVN6XHLauvF8SOga2y0dcLcjt3iQDTSEliyw==
+
+bindings@^1.3.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.5.0.tgz#10353c9e945334bc0511a6d90b38fbc7c9c504df"
+  integrity sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==
+  dependencies:
+    file-uri-to-path "1.0.0"
+
+bluebird@3.7.2:
+  version "3.7.2"
+  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.7.2.tgz#9f229c15be272454ffa973ace0dbee79a1b0c36f"
+  integrity sha512-XpNj6GDQzdfW+r2Wnn7xiSAd7TM3jzkxGXBGTtWKuSXv1xUV+azxAm8jdWZN06QTQk+2N2XB9jRDkvbmQmcRtg==
+
 bn.js@^4.11.9:
   version "4.12.0"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.12.0.tgz#775b3f278efbb9718eec7361f483fb36fbbfea88"
@@ -1241,6 +1341,11 @@ char-regex@^1.0.2:
   resolved "https://registry.yarnpkg.com/char-regex/-/char-regex-1.0.2.tgz#d744358226217f981ed58f479b1d6bcc29545dcf"
   integrity sha512-kWWXztvZ5SBQV+eRgKFeh8q5sLuZY2+8WUIzlxWVTg+oGwY14qylx1KbKzHd8P6ZYkAg0xyIDU9JMHhyJMZ1jw==
 
+check-more-types@2.24.0:
+  version "2.24.0"
+  resolved "https://registry.yarnpkg.com/check-more-types/-/check-more-types-2.24.0.tgz#1420ffb10fd444dcfc79b43891bbfffd32a84600"
+  integrity sha1-FCD/sQ/URNz8ebQ4kbv//TKoRgA=
+
 ci-info@^3.2.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/ci-info/-/ci-info-3.3.0.tgz#b4ed1fb6818dea4803a55c623041f9165d2066b2"
@@ -1410,6 +1515,13 @@ debug@4, debug@^4.1.0, debug@^4.1.1, debug@^4.3.2, debug@^4.3.3:
   dependencies:
     ms "2.1.2"
 
+debug@4.3.2:
+  version "4.3.2"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.2.tgz#f0a49c18ac8779e31d4a0c6029dfb76873c7428b"
+  integrity sha512-mOp8wKcvj7XxC78zLgw/ZA+6TSgkoE2C/ienthhRD298T7UNwAg9diBpLRxC0mOezLl4B0xV7M0cCO6P/O0Xhw==
+  dependencies:
+    ms "2.1.2"
+
 debug@^2.6.9:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
@@ -1499,6 +1611,11 @@ domexception@^2.0.1:
   dependencies:
     webidl-conversions "^5.0.0"
 
+duplexer@~0.1.1:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/duplexer/-/duplexer-0.1.2.tgz#3abe43aef3835f8ae077d136ddce0f276b0400e6"
+  integrity sha512-jtD6YG370ZCIi/9GTaJKQxWTZD045+4R4hTk/x1UyoqadyJ9x9CgSi1RlVDQF8U2sxLLSnFkCaMihqljHIWgMg==
+
 eastasianwidth@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/eastasianwidth/-/eastasianwidth-0.2.0.tgz#696ce2ec0aa0e6ea93a397ffcf24aa7840c827cb"
@@ -1775,12 +1892,25 @@ esutils@^2.0.2:
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.3.tgz#74d2eb4de0b8da1293711910d50775b9b710ef64"
   integrity sha512-kVscqXk4OCp68SZ0dkgEKVi6/8ij300KBWTJq32P/dYeWTSwK41WyTxalN1eRmA5Z9UU/LX9D7FWSmV9SAYx6g==
 
+event-stream@=3.3.4:
+  version "3.3.4"
+  resolved "https://registry.yarnpkg.com/event-stream/-/event-stream-3.3.4.tgz#4ab4c9a0f5a54db9338b4c34d86bfce8f4b35571"
+  integrity sha1-SrTJoPWlTbkzi0w02Gv86PSzVXE=
+  dependencies:
+    duplexer "~0.1.1"
+    from "~0"
+    map-stream "~0.1.0"
+    pause-stream "0.0.11"
+    split "0.3"
+    stream-combiner "~0.0.4"
+    through "~2.3.1"
+
 eventemitter3@^4.0.7:
   version "4.0.7"
   resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-4.0.7.tgz#2de9b68f6528d5644ef5c59526a1b4a07306169f"
   integrity sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw==
 
-execa@^5.0.0, execa@^5.1.1:
+execa@5.1.1, execa@^5.0.0, execa@^5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/execa/-/execa-5.1.1.tgz#f80ad9cbf4298f7bd1d4c9555c21e93741c411dd"
   integrity sha512-8uSpZZocAZRBAPIEINJj3Lo9HyGitllczc27Eh5YYojjMFMn8yHMDMaUHE2Jqfq05D/wucwI4JGURyXt1vchyg==
@@ -1862,6 +1992,11 @@ file-entry-cache@^6.0.1:
   dependencies:
     flat-cache "^3.0.4"
 
+file-uri-to-path@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz#553a7b8446ff6f684359c445f1e37a05dacc33dd"
+  integrity sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw==
+
 fill-range@^7.0.1:
   version "7.0.1"
   resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-7.0.1.tgz#1919a6a7c75fe38b2c7c77e5198535da9acdda40"
@@ -1897,6 +2032,11 @@ flatted@^3.1.0:
   resolved "https://registry.yarnpkg.com/flatted/-/flatted-3.2.5.tgz#76c8584f4fc843db64702a6bd04ab7a8bd666da3"
   integrity sha512-WIWGi2L3DyTUvUrwRKgGi9TwxQMUEqPOPQBVi71R96jZXJdFskXEmf54BoZaS1kknGODoIGASGEzBUYdyMCBJg==
 
+follow-redirects@^1.14.0:
+  version "1.14.9"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.14.9.tgz#dd4ea157de7bfaf9ea9b3fbd85aa16951f78d8d7"
+  integrity sha512-MQDfihBQYMcyy5dhRDJUHcw7lb2Pv/TuE6xP1vyraLukNDHKbDxDNaOE3NbCAdKQApno+GPRyo1YAp89yCjK4w==
+
 form-data@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-3.0.1.tgz#ebd53791b78356a99af9a300d4282c4d5eb9755f"
@@ -1906,6 +2046,11 @@ form-data@^3.0.0:
     combined-stream "^1.0.8"
     mime-types "^2.1.12"
 
+from@~0:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/from/-/from-0.1.7.tgz#83c60afc58b9c56997007ed1a768b3ab303a44fe"
+  integrity sha1-g8YK/Fi5xWmXAH7Rp2izqzA6RP4=
+
 fs.realpath@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
@@ -2785,6 +2930,17 @@ jest@^27.5.1:
     import-local "^3.0.2"
     jest-cli "^27.5.1"
 
+joi@^17.4.0:
+  version "17.6.0"
+  resolved "https://registry.yarnpkg.com/joi/-/joi-17.6.0.tgz#0bb54f2f006c09a96e75ce687957bd04290054b2"
+  integrity sha512-OX5dG6DTbcr/kbMFj0KGYxuew69HPcAE3K/sZpEV2nP6e/j/C0HV+HNiBPCASxdx5T7DMoa0s8UeHWMnb6n2zw==
+  dependencies:
+    "@hapi/hoek" "^9.0.0"
+    "@hapi/topo" "^5.0.0"
+    "@sideway/address" "^4.1.3"
+    "@sideway/formula" "^3.0.0"
+    "@sideway/pinpoint" "^2.0.0"
+
 js-sha3@^0.8.0:
   version "0.8.0"
   resolved "https://registry.yarnpkg.com/js-sha3/-/js-sha3-0.8.0.tgz#b9b7a5da73afad7dedd0f8c463954cbde6818840"
@@ -2890,6 +3046,11 @@ kleur@^3.0.3:
   resolved "https://registry.yarnpkg.com/kleur/-/kleur-3.0.3.tgz#a79c9ecc86ee1ce3fa6206d1216c501f147fc07e"
   integrity sha512-eTIzlVOSUR+JxdDFepEYcBMtZ9Qqdef+rnzWdRZuMbOywu5tO2w2N7rqjoANZ5k9vywhL6Br1VRjUIgTQx4E8w==
 
+lazy-ass@1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/lazy-ass/-/lazy-ass-1.6.0.tgz#7999655e8646c17f089fdd187d150d3324d54513"
+  integrity sha1-eZllXoZGwX8In90YfRUNMyTVRRM=
+
 leven@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/leven/-/leven-3.1.0.tgz#77891de834064cccba82ae7842bb6b14a13ed7f2"
@@ -2980,7 +3141,7 @@ lodash.merge@^4.6.2:
   resolved "https://registry.yarnpkg.com/lodash.merge/-/lodash.merge-4.6.2.tgz#558aa53b43b661e1925a0afdfa36a9a1085fe57a"
   integrity sha512-0KpjqXRVvrYyCsX1swR/XTK0va6VQkQM6MNo7PqW77ByjAhoARA8EfrP1N4+KlKj8YS0ZUCtRT/YUuhyYDujIQ==
 
-lodash@^4.17.20, lodash@^4.7.0:
+lodash@^4.17.20, lodash@^4.17.21, lodash@^4.7.0:
   version "4.17.21"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
   integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
@@ -3021,6 +3182,11 @@ makeerror@1.0.12:
   dependencies:
     tmpl "1.0.5"
 
+map-stream@~0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/map-stream/-/map-stream-0.1.0.tgz#e56aa94c4c8055a16404a0674b78f215f7c8e194"
+  integrity sha1-5WqpTEyAVaFkBKBnS3jyFffI4ZQ=
+
 merge-stream@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/merge-stream/-/merge-stream-2.0.0.tgz#52823629a14dd00c9770fb6ad47dc6310f2c1f60"
@@ -3073,7 +3239,7 @@ minimatch@^3.0.4:
   dependencies:
     brace-expansion "^1.1.7"
 
-minimist@^1.2.0, minimist@^1.2.6:
+minimist@^1.2.0, minimist@^1.2.5, minimist@^1.2.6:
   version "1.2.6"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.6.tgz#8637a5b759ea0d6e98702cfb3a9283323c93af44"
   integrity sha512-Jsjnk4bw3YJqYzbdyBiNsPWHPfO++UGG749Cxs6peCu5Xg4nrena6OVxOYxrQTqww0Jmwt+Ref8rggumkTLz9Q==
@@ -3306,6 +3472,13 @@ path-type@^4.0.0:
   resolved "https://registry.yarnpkg.com/path-type/-/path-type-4.0.0.tgz#84ed01c0a7ba380afe09d90a8c180dcd9d03043b"
   integrity sha512-gDKb8aZMDeD/tZWs9P6+q0J9Mwkdl6xMV8TjnGP3qJVJ06bdMgkbBlLU8IdfOsIsFz2BW1rNVT3XuNEl8zPAvw==
 
+pause-stream@0.0.11:
+  version "0.0.11"
+  resolved "https://registry.yarnpkg.com/pause-stream/-/pause-stream-0.0.11.tgz#fe5a34b0cbce12b5aa6a2b403ee2e73b602f1445"
+  integrity sha1-/lo0sMvOErWqaitAPuLnO2AvFEU=
+  dependencies:
+    through "~2.3"
+
 picocolors@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/picocolors/-/picocolors-1.0.0.tgz#cb5bdc74ff3f51892236eaf79d68bc44564ab81c"
@@ -3365,6 +3538,13 @@ prompts@^2.0.1:
     kleur "^3.0.3"
     sisteransi "^1.0.5"
 
+ps-tree@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/ps-tree/-/ps-tree-1.2.0.tgz#5e7425b89508736cdd4f2224d028f7bb3f722ebd"
+  integrity sha512-0VnamPPYHl4uaU/nSFeZZpR21QAWRz+sRv4iW9+v/GS/J5U5iZB5BNN6J0RMoOvdx2gWM2+ZFMIm58q24e4UYA==
+  dependencies:
+    event-stream "=3.3.4"
+
 psl@^1.1.33:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/psl/-/psl-1.8.0.tgz#9326f8bcfb013adcc005fdff056acce020e51c24"
@@ -3477,7 +3657,7 @@ run-parallel@^1.1.9:
   dependencies:
     queue-microtask "^1.2.2"
 
-rxjs@^7.5.5:
+rxjs@^7.1.0, rxjs@^7.5.5:
   version "7.5.5"
   resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-7.5.5.tgz#2ebad89af0f560f460ad5cc4213219e1f7dd4e9f"
   integrity sha512-sy+H0pQofO95VDmFLzyaw9xNJU4KTRSwQIGM6+iG3SypAtCiLDzpeG8sJrNCWn2Up9km+KhkvTdbkrdy+yzZdw==
@@ -3612,6 +3792,13 @@ source-map@^0.7.3:
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.7.3.tgz#5302f8169031735226544092e64981f751750383"
   integrity sha512-CkCj6giN3S+n9qrYiBTX5gystlENnRW5jZeNLHpe6aue+SrHcG5VYwujhW9s4dY31mEGsxBDrHR6oI69fTXsaQ==
 
+split@0.3:
+  version "0.3.3"
+  resolved "https://registry.yarnpkg.com/split/-/split-0.3.3.tgz#cd0eea5e63a211dfff7eb0f091c4133e2d0dd28f"
+  integrity sha1-zQ7qXmOiEd//frDwkcQTPi0N0o8=
+  dependencies:
+    through "2"
+
 sprintf-js@~1.0.2:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
@@ -3624,6 +3811,26 @@ stack-utils@^2.0.3:
   dependencies:
     escape-string-regexp "^2.0.0"
 
+start-server-and-test@^1.14.0:
+  version "1.14.0"
+  resolved "https://registry.yarnpkg.com/start-server-and-test/-/start-server-and-test-1.14.0.tgz#c57f04f73eac15dd51733b551d775b40837fdde3"
+  integrity sha512-on5ELuxO2K0t8EmNj9MtVlFqwBMxfWOhu4U7uZD1xccVpFlOQKR93CSe0u98iQzfNxRyaNTb/CdadbNllplTsw==
+  dependencies:
+    bluebird "3.7.2"
+    check-more-types "2.24.0"
+    debug "4.3.2"
+    execa "5.1.1"
+    lazy-ass "1.6.0"
+    ps-tree "1.2.0"
+    wait-on "6.0.0"
+
+stream-combiner@~0.0.4:
+  version "0.0.4"
+  resolved "https://registry.yarnpkg.com/stream-combiner/-/stream-combiner-0.0.4.tgz#4d5e433c185261dde623ca3f44c586bcf5c4ad14"
+  integrity sha1-TV5DPBhSYd3mI8o/RMWGvPXErRQ=
+  dependencies:
+    duplexer "~0.1.1"
+
 string-argv@^0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/string-argv/-/string-argv-0.3.1.tgz#95e2fbec0427ae19184935f816d74aaa4c5c19da"
@@ -3786,7 +3993,7 @@ throat@^6.0.1:
   resolved "https://registry.yarnpkg.com/throat/-/throat-6.0.1.tgz#d514fedad95740c12c2d7fc70ea863eb51ade375"
   integrity sha512-8hmiGIJMDlwjg7dlJ4yKGLK8EsYqKgPWbG3b4wjJddKNwc7N7Dpn08Df4szr/sZdMVeOstrdYSsqzX6BYbcB+w==
 
-"through@>=2.2.7 <3", through@^2.3.8:
+through@2, "through@>=2.2.7 <3", through@^2.3.8, through@~2.3, through@~2.3.1:
   version "2.3.8"
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
   integrity sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=
@@ -3985,6 +4192,17 @@ w3c-xmlserializer@^2.0.0:
   dependencies:
     xml-name-validator "^3.0.0"
 
+wait-on@6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/wait-on/-/wait-on-6.0.0.tgz#7e9bf8e3d7fe2daecbb7a570ac8ca41e9311c7e7"
+  integrity sha512-tnUJr9p5r+bEYXPUdRseolmz5XqJTTj98JgOsfBn7Oz2dxfE2g3zw1jE+Mo8lopM3j3et/Mq1yW7kKX6qw7RVw==
+  dependencies:
+    axios "^0.21.1"
+    joi "^17.4.0"
+    lodash "^4.17.21"
+    minimist "^1.2.5"
+    rxjs "^7.1.0"
+
 walker@^1.0.7:
   version "1.0.8"
   resolved "https://registry.yarnpkg.com/walker/-/walker-1.0.8.tgz#bd498db477afe573dc04185f011d3ab8a8d7653f"