@@ -25,4 +25,36 @@ component extends="wheels.wheelstest.system.BaseSpec" {
         }
     }
 
+    /**
+     * Create a TestClient and visit the given path (HTTP GET).
+     * Returns the TestClient for fluent assertion chaining.
+     *
+     * Usage in tests:
+     *   visit("/users").assertOk().assertSee("John")
+     *
+     * @path URL path to visit
+     */
+    public any function visit(required string path) {
+        return $testClient().get(arguments.path);
+    }
+
+    /**
+     * Return a configured TestClient instance.
+     * The base URL is auto-detected from the current server port.
+     */
+    public any function $testClient() {
+        return new wheels.wheelstest.TestClient(baseUrl = $getTestBaseUrl());
+    }
+
+    /**
+     * Auto-detect the base URL of the running test server.
+     */
+    private string function $getTestBaseUrl() {
+        var port = CGI.SERVER_PORT;
+        if (!Len(port) || port == 0) {
+            port = 8080;
+        }
+        return "http://localhost:" & port;
+    }
+
 }
@@ -0,0 +1,289 @@
+component extends="wheels.WheelsTest" {
+
+	/**
+	 * Helper: create a TestClient with a pre-set fake response for unit-testing
+	 * assertion logic without making real HTTP calls.
+	 */
+	private any function $fakeClient(string body = "", numeric status = 200, struct headers = {}) {
+		var fc = new wheels.wheelstest.TestClient();
+		// Directly set internal state to test assertions in isolation
+		fc.$setFakeResponse(
+			statusCode = "#arguments.status# OK",
+			fileContent = arguments.body,
+			responseHeader = arguments.headers
+		);
+		return fc;
+	}
+
+	function run() {
+
+		describe("TestClient", () => {
+
+			beforeEach(() => {
+				tc = $testClient();
+			});
+
+			describe("initialization", () => {
+
+				it("initializes with default baseUrl", () => {
+					var c = new wheels.wheelstest.TestClient();
+					expect(c).toBeInstanceOf("wheels.wheelstest.TestClient");
+				});
+
+				it("initializes with custom baseUrl", () => {
+					var c = new wheels.wheelstest.TestClient(baseUrl = "http://localhost:9999");
+					expect(c).toBeInstanceOf("wheels.wheelstest.TestClient");
+				});
+
+			});
+
+			describe("request methods", () => {
+
+				it("get() makes HTTP GET request", () => {
+					tc.get("/");
+					expect(tc.statusCode()).toBeGT(0);
+				});
+
+				it("post() makes HTTP POST request", () => {
+					tc.post("/");
+					expect(tc.statusCode()).toBeGT(0);
+				});
+
+				it("put() makes HTTP PUT request", () => {
+					tc.put("/");
+					expect(tc.statusCode()).toBeGT(0);
+				});
+
+				it("patch() makes HTTP PATCH request", () => {
+					tc.patch("/");
+					expect(tc.statusCode()).toBeGT(0);
+				});
+
+				it("delete() makes HTTP DELETE request", () => {
+					tc.delete("/");
+					expect(tc.statusCode()).toBeGT(0);
+				});
+
+				it("visit() is alias for get()", () => {
+					tc.visit("/");
+					expect(tc.statusCode()).toBeGT(0);
+				});
+
+			});
+
+			describe("assertions", () => {
+
+				it("assertStatus() passes on correct status code", () => {
+					tc.get("/");
+					tc.assertStatus(tc.statusCode());
+				});
+
+				it("assertStatus() fails on wrong status code", () => {
+					tc.get("/");
+					expect(function() {
+						tc.assertStatus(999);
+					}).toThrow("TestBox.AssertionFailed");
+				});
+
+				it("assertOk() passes on 200 response", () => {
+					var fc = $fakeClient(status = 200);
+					fc.assertOk();
+				});
+
+				it("assertNotFound() passes on 404 response", () => {
+					tc.get("/wheels-nonexistent-route-that-should-404");
+					tc.assertNotFound();
+				});
+
+				it("assertSee() finds text in response body", () => {
+					tc.get("/");
+					expect(Len(tc.content())).toBeGT(0, "Response body should not be empty");
+					tc.assertSee(Left(tc.content(), 10));
+				});
+
+				it("assertSee() fails when text is not found", () => {
+					tc.get("/");
+					expect(function() {
+						tc.assertSee("ZZZZZ_THIS_TEXT_SHOULD_NEVER_EXIST_ZZZZZ");
+					}).toThrow("TestBox.AssertionFailed");
+				});
+
+				it("assertDontSee() confirms text is absent", () => {
+					tc.get("/");
+					tc.assertDontSee("ZZZZZ_THIS_TEXT_SHOULD_NEVER_EXIST_ZZZZZ");
+				});
+
+				it("assertDontSee() fails when text is present", () => {
+					tc.get("/");
+					expect(Len(tc.content())).toBeGT(0, "Response body should not be empty");
+					var snippet = Left(tc.content(), 10);
+					expect(function() {
+						tc.assertDontSee(snippet);
+					}).toThrow("TestBox.AssertionFailed");
+				});
+
+				it("assertJson() validates JSON response", () => {
+					var fc = $fakeClient(body = '{"name":"wheels","version":4}');
+					fc.assertJson();
+					fc.assertJson({name: "wheels"});
+				});
+
+				it("assertJson() fails on non-JSON response", () => {
+					var fc = $fakeClient(body = "<html>not json</html>");
+					expect(function() {
+						fc.assertJson();
+					}).toThrow("TestBox.AssertionFailed");
+				});
+
+				it("assertRedirect() fails on non-redirect status", () => {
+					tc.get("/");
+					expect(function() {
+						tc.assertRedirect();
+					}).toThrow("TestBox.AssertionFailed");
+				});
+
+				it("assertRedirect() passes on 3xx status", () => {
+					var fc = $fakeClient(status = 302, headers = {Location: "/dashboard"});
+					fc.assertRedirect();
+					fc.assertRedirect(to = "/dashboard");
+				});
+
+			});
+
+			describe("request configuration", () => {
+
+				it("withHeaders() adds custom headers", () => {
+					tc.withHeaders({"X-Custom-Test": "hello"});
+					tc.get("/");
+					expect(tc.statusCode()).toBeGT(0);
+				});
+
+				it("withHeader() adds a single header", () => {
+					tc.withHeader("X-Custom-Test", "hello");
+					tc.get("/");
+					expect(tc.statusCode()).toBeGT(0);
+				});
+
+				it("asJson() sets content type and returns client for chaining", () => {
+					var result = tc.asJson();
+					expect(result).toBeInstanceOf("wheels.wheelstest.TestClient");
+				});
+
+			});
+
+			describe("response accessors", () => {
+
+				beforeEach(() => {
+					tc.get("/");
+				});
+
+				it("content() returns response body as string", () => {
+					expect(tc.content()).toBeString();
+				});
+
+				it("statusCode() returns numeric status", () => {
+					expect(tc.statusCode()).toBeNumeric();
+				});
+
+				it("headers() returns response headers struct", () => {
+					expect(tc.headers()).toBeStruct();
+				});
+
+				it("response() returns full response struct", () => {
+					expect(tc.response()).toBeStruct();
+				});
+
+			});
+
+			describe("chaining", () => {
+
+				it("supports fluent chaining: assertOk().assertSee()", () => {
+					var fc = $fakeClient(body = "<html>Welcome to Wheels</html>");
+					fc.assertOk().assertSee("Welcome");
+				});
+
+				it("supports withHeaders().get().assertStatus() chain", () => {
+					tc.withHeader("Accept", "text/html").get("/");
+					tc.assertStatus(tc.statusCode());
+				});
+
+			});
+
+			describe("assertSeeInOrder", () => {
+
+				it("passes when texts appear in order", () => {
+					var fc = $fakeClient(body = "alpha beta gamma delta");
+					fc.assertSeeInOrder(["alpha", "beta", "gamma"]);
+				});
+
+				it("fails when texts appear out of order", () => {
+					var fc = $fakeClient(body = "alpha beta gamma delta");
+					expect(function() {
+						fc.assertSeeInOrder(["gamma", "alpha"]);
+					}).toThrow("TestBox.AssertionFailed");
+				});
+
+			});
+
+			describe("assertJsonPath", () => {
+
+				it("resolves dot-notation paths in JSON", () => {
+					var fc = $fakeClient(body = '{"user":{"name":"John","roles":["admin","editor"]}}');
+					fc.assertJsonPath("user.name", "John");
+				});
+
+				it("resolves 1-based array indices in JSON", () => {
+					var fc = $fakeClient(body = '{"items":["a","b","c"]}');
+					fc.assertJsonPath("items.1", "a");
+					fc.assertJsonPath("items.3", "c");
+				});
+
+				it("fails on missing path", () => {
+					var fc = $fakeClient(body = '{"name":"wheels"}');
+					expect(function() {
+						fc.assertJsonPath("missing.key", "val");
+					}).toThrow("TestBox.AssertionFailed");
+				});
+
+			});
+
+			describe("assertHeader", () => {
+
+				it("passes when header exists", () => {
+					tc.get("/");
+					tc.assertHeader("Content-Type");
+				});
+
+				it("passes when header matches value", () => {
+					var fc = $fakeClient(headers = {"X-Custom": "hello"});
+					fc.assertHeader("X-Custom", "hello");
+				});
+
+				it("fails when header is missing", () => {
+					tc.get("/");
+					expect(function() {
+						tc.assertHeader("X-Nonexistent-Header-For-Test");
+					}).toThrow("TestBox.AssertionFailed");
+				});
+
+			});
+
+			describe("post with body", () => {
+
+				it("sends form fields by default", () => {
+					tc.post("/", {testField: "testValue"});
+					expect(tc.statusCode()).toBeGT(0);
+				});
+
+				it("sends JSON body when asJson()", () => {
+					tc.asJson().post("/", {testField: "testValue"});
+					expect(tc.statusCode()).toBeGT(0);
+				});
+
+			});
+
+		});
+
+	}
+
+}