Port the tests

test/fast_transformer_test.js

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+import {FastTransformer} from "@cedx/php-minifier";
+import {doesNotReject, ok} from "node:assert/strict";
+import {after, describe, it} from "node:test";
+
+/**
+ * Tests the features of the {@link FastTransformer} class.
+ */
+describe("FastTransformer", () => {
+	describe("close()", () => {
+		it("should not reject, even if called several times", async () => {
+			const transformer = new FastTransformer;
+			await doesNotReject(transformer.listen());
+			await doesNotReject(transformer.close());
+			await doesNotReject(transformer.close());
+		});
+	});
+
+	describe("listen()", () => {
+		it("should not reject, even if called several times", async () => {
+			const transformer = new FastTransformer;
+			await doesNotReject(transformer.listen());
+			await doesNotReject(transformer.listen());
+			await doesNotReject(transformer.close());
+		});
+	});
+
+	describe("transform()", () => {
+		const map = new Map([
+			["should remove the inline comments", "<?= 'Hello World!' ?>"],
+			["should remove the multi-line comments", "namespace dummy; class Dummy"],
+			["should remove the single-line comments", "$className = get_class($this); return $className;"],
+			["should remove the whitespace", "__construct() { $this->property"]
+		]);
+
+		const transformer = new FastTransformer;
+		after(() => transformer.close());
+
+		for (const [key, value] of map) it(key, async () => {
+      const output = await transformer.transform("res/sample.php");
+			ok(output.includes(value));
+    });
+	});
+});

test/gulp_plugin_test.js

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+/* eslint-disable no-underscore-dangle */
+import {GulpPlugin} from "@cedx/php-minifier";
+import {doesNotReject, ifError, ok} from "node:assert/strict";
+import {resolve} from "node:path";
+import {after, describe, it} from "node:test";
+import File from "vinyl";
+
+/**
+ * Tests the features of the {@link GulpPlugin} class.
+ */
+describe("GulpPlugin", () => {
+	describe("_transform()", () => {
+		const map = new Map([
+			["should remove the inline comments", "<?= 'Hello World!' ?>"],
+			["should remove the multi-line comments", "namespace dummy; class Dummy"],
+			["should remove the single-line comments", "$className = get_class($this); return $className;"],
+			["should remove the whitespace", "__construct() { $this->property"]
+		]);
+
+		describe("fast", () => {
+			const file = new File({path: resolve("res/sample.php")});
+			const plugin = new GulpPlugin({mode: "fast", silent: true});
+			after(() => plugin.emit("end"));
+
+			for (const [key, value] of map) it(key, () => doesNotReject(plugin._transform(file, "utf8", (error, /** @type {File} */ chunk) => {
+				ifError(error);
+				ok(chunk.contents?.toString().includes(value)); // eslint-disable-line @typescript-eslint/no-base-to-string
+			})));
+		});
+
+		describe("safe", () => {
+			const file = new File({path: resolve("res/sample.php")});
+			const plugin = new GulpPlugin({mode: "safe", silent: true});
+			after(() => plugin.emit("end"));
+
+			for (const [key, value] of map) it(key, () => doesNotReject(plugin._transform(file, "utf8", (error, /** @type {File} */ chunk) => {
+				ifError(error);
+				ok(chunk.contents?.toString().includes(value)); // eslint-disable-line @typescript-eslint/no-base-to-string
+			})));
+		});
+	});
+});

test/safe_transformer_test.js

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+import {SafeTransformer} from "@cedx/php-minifier";
+import {doesNotReject, ok} from "node:assert/strict";
+import {after, describe, it} from "node:test";
+
+/**
+ * Tests the features of the {@link SafeTransformer} class.
+ */
+describe("SafeTransformer", () => {
+	describe("close()", () => {
+		it("should not reject, even if called several times", async () => {
+			const transformer = new SafeTransformer;
+			await doesNotReject(transformer.close());
+			await doesNotReject(transformer.close());
+		});
+	});
+
+	describe("transform()", () => {
+		const map = new Map([
+			["should remove the inline comments", "<?= 'Hello World!' ?>"],
+			["should remove the multi-line comments", "namespace dummy; class Dummy"],
+			["should remove the single-line comments", "$className = get_class($this); return $className;"],
+			["should remove the whitespace", "__construct() { $this->property"]
+		]);
+
+		const transformer = new SafeTransformer;
+		after(() => transformer.close());
+
+		for (const [key, value] of map) it(key, async () => {
+      const output = await transformer.transform("res/sample.php");
+			ok(output.includes(value));
+    });
+	});
+});