test: add ut for utils (NodeSecure#16)

package.json

@@ -5,7 +5,7 @@
   "type": "module",
   "exports": "./index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
+    "test": "tap --node-arg='--no-warnings' --node-arg='--experimental-loader' --node-arg='@istanbuljs/esm-loader-hook' test/*test.js",
     "start": "npm run build && http-server ./dist",
     "build": "node esbuild.config.js"
   },
@@ -33,9 +33,16 @@
     "vis-network": "^9.1.2"
   },
   "devDependencies": {
+    "@istanbuljs/esm-loader-hook": "^0.1.2",
     "@nodesecure/flags": "^2.3.0",
     "@nodesecure/scanner": "^3.4.1",
     "esbuild": "^0.14.42",
-    "http-server": "^14.1.0"
+    "http-server": "^14.1.0",
+    "tap": "^16.3.0"
+  },
+  "tap": {
+    "test-env": {
+      "NODE_OPTIONS": "--experimental-loader @istanbuljs/esm-loader-hook"
+    }
   }
 }

test/utils.test.js

@@ -0,0 +1,62 @@
+import tap from "tap";
+import { getFlagsEmojisInlined, getJSON, getNodeColor } from "../src/utils.js";
+import * as CONSTANTS from "../src/constants.js";
+
+const response = { message: "test should works" };
+global.fetch = () => Promise.resolve({ json: () => response });
+const json = await getJSON("random");
+
+tap.equal(json, response, "getJSON should works");
+
+const FLAGS = [
+  {
+    emoji: "🌍",
+    title: "hasExternalCapacity",
+  },
+  {
+    emoji: "🚧",
+    title: "hasWarnings",
+  },
+  {
+    emoji: "🐲",
+    title: "hasNativeCode",
+  },
+];
+
+const titles = FLAGS.map((flag) => flag.title);
+
+tap.equal(
+  getFlagsEmojisInlined(titles, new Set()),
+  " 🌍 🚧 🐲",
+  "getFlagsEmojisInlined without flag to ignore"
+);
+
+tap.equal(
+  getFlagsEmojisInlined(titles, new Set(["hasWarnings"])),
+  " 🌍 🐲",
+  "getFlagsEmojisInlined with flag to ignore"
+);
+
+tap.equal(
+  getNodeColor(0),
+  CONSTANTS.COLORS["LIGHT"].SELECTED,
+  "id 0 is the root package (so by default he is highlighted as selected)."
+);
+
+tap.equal(
+  getNodeColor(1, true),
+  CONSTANTS.COLORS["LIGHT"].WARN,
+  "hasWarnings is true, so the node is highlighted as warning."
+);
+
+tap.equal(
+  getNodeColor(1, false),
+  CONSTANTS.COLORS["LIGHT"].DEFAULT,
+  "the node is highlighted as default."
+);
+
+tap.equal(
+  getNodeColor(1, false, "DARK"),
+  CONSTANTS.COLORS["DARK"].DEFAULT,
+  "the node is highlighted as default and the theme is DARK."
+);