Add tests for MCP command functionality

Co-authored-by: Lipata <[email protected]>

Author: Copilot

spec/acceptance/help-spec.ts

@@ -23,6 +23,8 @@ describe("Help command", () => {
 		doc [term]             opens the Infragistics search for the given term
 		test                   executes project tests
 		list                   list all templates                           [aliases: l]
+		mcp                    Start the Ignite UI CLI MCP (Model Context Protocol)
+		                       server
 		upgrade-packages        upgrades Ignite UI Packages
 	  Options:
 		-v, --version  Show current Ignite UI CLI version                    [boolean]

spec/acceptance/mcp-spec.ts

@@ -0,0 +1,58 @@
+import { GoogleAnalytics, Util } from "@igniteui/cli-core";
+import * as cli from "../../packages/cli/lib/cli";
+
+const execLocation = "packages/cli/bin/execute.js";
+
+describe("MCP command", () => {
+	beforeEach(() => {
+		spyOn(GoogleAnalytics, "post");
+	});
+
+	it("should be listed in help", async () => {
+		const consoleSpy = spyOn(console, "log");
+
+		try {
+			await cli.run(["--help"]);
+		} catch (e) {
+			fail(e);
+		}
+
+		expect(consoleSpy).toHaveBeenCalledTimes(1);
+		const helpText: string = consoleSpy.calls.mostRecent().args[0] + "";
+		expect(helpText).toContain("mcp");
+		expect(helpText).toContain("Start the Ignite UI CLI MCP (Model Context Protocol)");
+	});
+
+	it("should show help for the mcp command", async () => {
+		const child = Util.spawnSync("node", [execLocation, "mcp", "-h"], {
+			encoding: "utf-8"
+		});
+
+		const expectedHelpText: string = `
+		Options:
+		-v, --version   Show current Ignite UI CLI version                   [boolean]
+		-h, --help      Show help                                            [boolean]
+		--read-only     Only register read-only tools       [boolean] [default: false]
+		`;
+
+		const replacedHelpText: string = expectedHelpText.replace(/\s/g, "");
+		const actualText: string = (child.stdout.toString()).replace(/\s/g, "");
+
+		expect(actualText).toContain(replacedHelpText);
+	});
+
+	it("should run without error", async () => {
+		// The MCP command checks if running in a TTY
+		// When run interactively (TTY), it shows a message
+		// When run non-interactively (not TTY), it starts the MCP server
+		// Since we can't easily test the server startup, we just verify no errors
+		const child = Util.spawnSync("timeout", ["1", "node", execLocation, "mcp"], {
+			encoding: "utf-8"
+		});
+
+		// Command will timeout when trying to start server (which is expected)
+		// or show the interactive message if TTY is detected
+		// Either way, we should not get an error status code before timeout
+		expect(child.status).not.toBe(1);
+	});
+});