Switch to Jest, refactor tests

.gitattributes

@@ -0,0 +1,2 @@
+*.snap linguist-generated=true
+test/mocks/* linguist-generated=true

.gitignore

@@ -1,3 +1,4 @@
+.DS_Store
 node_modules
 *.log
 build
@@ -12,3 +13,4 @@ dist-cli
 /remarks*.json
 /dump-*.json
 throwaway.js
+coverage

babel.config.js

@@ -0,0 +1,21 @@
+module.exports = (api) => {
+  if (api) api.cache(true);
+  return {
+    presets: [
+      "@babel/typescript",
+      [
+        "@babel/preset-env",
+        {
+          targets: { browsers: "defaults, not ie 11", node: true },
+          modules: false,
+          useBuiltIns: false,
+          loose: true,
+        },
+      ],
+    ],
+    plugins: [
+      "@babel/plugin-proposal-optional-chaining",
+      "@babel/plugin-transform-modules-commonjs",
+    ],
+  };
+};

jest.config.js

@@ -0,0 +1,15 @@
+module.exports = {
+  transform: {
+    "^.+\\.(t|j)sx?$": "babel-jest",
+  },
+  transformIgnorePatterns: [
+    "/node_modules/(?!(@polkadot|@babel/runtime/helpers/esm/))",
+  ],
+  collectCoverage: true,
+  collectCoverageFrom: [
+    "src/tools/utils.ts",
+    "src/tools/validate-remark.ts",
+    "src/tools/consolidator/consolidator.ts",
+    "src/rmrk1.0.0/classes/*",
+  ],
+};

package.json

@@ -37,8 +37,8 @@
     "cli:getevents": "ts-node --project tsconfig.cli.json cli/index getevents",
     "cli:validate": "ts-node --project tsconfig.cli.json src/index validate",
     "cli:run-listener": "ts-node --project tsconfig.cli.json cli/run-listener.ts",
-    "test": "TS_NODE_PROJECT=tsconfig.test.json ava",
-    "test:watch": "TS_NODE_PROJECT=tsconfig.test.json ava --watch",
+    "test": "jest --silent",
+    "test:coverage": "jest --coverage --coverageDirectory='coverage'",
     "prepublishOnly": "yarn build"
   },
   "bin": {
@@ -60,18 +60,21 @@
     "@rollup/plugin-commonjs": "^17.1.0",
     "@rollup/plugin-json": "^4.1.0",
     "@rollup/plugin-node-resolve": "^11.2.0",
+    "@types/jest": "^26.0.20",
     "@types/node": "^14.11.2",
     "@typescript-eslint/eslint-plugin": "^4.2.0",
     "@typescript-eslint/parser": "^4.2.0",
-    "ava": "^3.12.1",
+    "babel-jest": "^26.6.3",
     "eslint": "^7.9.0",
     "eslint-config-prettier": "^6.11.0",
     "eslint-plugin-prettier": "^3.1.4",
     "eslint-plugin-security": "^1.4.0",
+    "jest": "^26.6.3",
     "prettier": "^2.1.2",
     "process": "^0.11.10",
     "rollup": "^2.40.0",
     "rollup-plugin-terser": "^7.0.2",
+    "ts-jest": "^26.5.3",
     "ts-loader": "^8.0.17",
     "ts-node": "^9.0.0",
     "typescript": "^4.0.3",
@@ -91,16 +94,5 @@
     "superstruct": "^0.14.2",
     "uint8arrays": "^2.1.3",
     "winston": "^3.3.3"
-  },
-  "ava": {
-    "extensions": [
-      "ts"
-    ],
-    "require": [
-      "ts-node/register"
-    ],
-    "files": [
-      "test/**/*.test.ts"
-    ]
   }
 }

src/tools/utils.ts

@@ -48,18 +48,13 @@ export const stringIsAValidUrl = (s: string): boolean => {
   }
 };
 
-export const prefixToArray = function (prefix: string): string[] {
-  const returnArray = [];
-  const exploded = prefix.split(",");
-  for (const p of exploded) {
-    if (p.indexOf("0x") === 0) {
-      returnArray.push(p);
-    } else {
-      returnArray.push(stringToHex(p));
+export const prefixToArray = (prefix: string): string[] =>
+  prefix.split(",").map((item) => {
+    if (item.indexOf("0x") === 0) {
+      return item;
     }
-  }
-  return returnArray;
-};
+    return stringToHex(item);
+  });
 
 const getMeta = (call: Call, block: number): RemarkMeta | false => {
   const str = hexToString(call.value);
@@ -141,16 +136,13 @@ export const isBatchInterrupted = async (
   return Boolean(events.length);
 };
 
-const isSystemRemark = (call: TCall, prefixes: string[]) => {
-  return (
-    call.section === "system" &&
-    call.method === "remark" &&
-    (prefixes.length < 1 ||
-      prefixes.some((word) => call.args.toString().startsWith(word)))
-  );
-};
+export const isSystemRemark = (call: TCall, prefixes: string[]): Boolean =>
+  call.section === "system" &&
+  call.method === "remark" &&
+  (prefixes.length < 1 ||
+    prefixes.some((word) => call.args.toString().startsWith(word)));
 
-const isUtilityBatch = (call: TCall) =>
+export const isUtilityBatch = (call: TCall) =>
   call.section === "utility" &&
   (call.method === "batch" || call.method === "batchAll");