Rename src to source

test/services/config.test.ts

@@ -0,0 +1,120 @@
+import { describe, expect, test, vi } from 'vitest';
+
+import { Config } from '../../src/services/config.ts';
+
+/**
+ * Tests that the config defaults to a 1 MiB request body limit.
+ */
+const testConfigDefaultsTo1MiBRequestBodyLimit = (): void => {
+    const config = Config.from({
+        database: {},
+        server: {},
+        auth: {},
+    });
+
+    expect(config.server.maxRequestBodyBytes).toBe(1024 * 1024);
+    expect(config.database.path).toBe('data.db');
+    expect(config.server.port).toBe(3000);
+    expect(config.server.host).toBe('0.0.0.0');
+    expect(config.server.cors.origin).toBe('*');
+    expect(config.server.cors.methods).toEqual([ 'GET', 'POST', 'PUT', 'DELETE', 'OPTIONS' ]);
+    expect(config.server.cors.allowedHeaders).toEqual([ 'Content-Type', 'cache-control', 'X-Timestamp', 'X-PublicKey', 'X-Signature' ]);
+    expect(config.auth.timestampWindowMs).toBe(300000);
+};
+
+/**
+ * Tests that the config loads the request body limit from the environment.
+ */
+const testConfigLoadsRequestBodyLimitFromEnvironment = (): void => {
+    vi.stubEnv('SERVER_MAX_REQUEST_BODY_BYTES', '2048');
+
+    expect(Config.fromEnv().server.maxRequestBodyBytes).toBe(2048);
+};
+
+/**
+ * Tests that the config rejects an invalid request body limit.
+ */
+const testConfigRejectsInvalidRequestBodyLimit = (): void => {
+    expect(() =>
+        Config.from({
+            database: {},
+            server: { maxRequestBodyBytes: '0' },
+            auth: {},
+        })).toThrow();
+};
+
+/**
+ * tests that the config loads the database path from the environment.
+ */
+const testConfigLoadsDatabasePathFromEnvironment = (): void => {
+    vi.stubEnv('DATABASE_PATH', 'test.db');
+
+    expect(Config.fromEnv().database.path).toBe('test.db');
+};
+
+/**
+ * tests that the config loads the server port from the environment.
+ */
+const testConfigLoadsServerPortFromEnvironment = (): void => {
+    vi.stubEnv('SERVER_PORT', '3000');
+
+    expect(Config.fromEnv().server.port).toBe(3000);
+};
+
+/**
+ * tests that the config loads the server host from the environment.
+ */
+const testConfigLoadsServerHostFromEnvironment = (): void => {
+    vi.stubEnv('SERVER_HOST', '0.0.0.0');
+
+    expect(Config.fromEnv().server.host).toBe('0.0.0.0');
+};
+
+/**
+ * tests that the config loads the cors configuration from the environment.
+ */
+const testConfigLoadsCorsConfigurationFromEnvironment = (): void => {
+    vi.stubEnv('CORS_ORIGIN', '*');
+
+    expect(Config.fromEnv().server.cors.origin).toBe('*');
+};
+
+/**
+ * tests that the config loads the cors methods from the environment.
+ */
+const testConfigLoadsCorsMethodsFromEnvironment = (): void => {
+    vi.stubEnv('CORS_METHODS', 'GET,POST,PUT,DELETE,OPTIONS');
+
+    expect(Config.fromEnv().server.cors.methods).toEqual([ 'GET', 'POST', 'PUT', 'DELETE', 'OPTIONS' ]);
+};
+
+/**
+ * tests that the config loads the cors allowed headers from the environment.
+ */
+const testConfigLoadsCorsAllowedHeadersFromEnvironment = (): void => {
+    vi.stubEnv('CORS_ALLOWED_HEADERS', 'Content-Type,cache-control,X-Timestamp');
+
+    expect(Config.fromEnv().server.cors.allowedHeaders).toEqual([ 'Content-Type', 'cache-control', 'X-Timestamp' ]);
+};
+
+/**
+ * tests that the config loads the auth configuration from the environment.
+ */
+const testConfigLoadsAuthConfigurationFromEnvironment = (): void => {
+    vi.stubEnv('AUTH_TIMESTAMP_WINDOW_MS', '1000');
+
+    expect(Config.fromEnv().auth.timestampWindowMs).toBe(1000);
+};
+
+describe('Config', () => {
+    test('defaults to a 1 MiB request body limit', testConfigDefaultsTo1MiBRequestBodyLimit);
+    test('loads the request body limit from the environment', testConfigLoadsRequestBodyLimitFromEnvironment);
+    test('rejects the invalid request body limit', testConfigRejectsInvalidRequestBodyLimit);
+    test('loads the database path from the environment', testConfigLoadsDatabasePathFromEnvironment);
+    test('loads the server port from the environment', testConfigLoadsServerPortFromEnvironment);
+    test('loads the server host from the environment', testConfigLoadsServerHostFromEnvironment);
+    test('loads the cors configuration from the environment', testConfigLoadsCorsConfigurationFromEnvironment);
+    test('loads the cors methods from the environment', testConfigLoadsCorsMethodsFromEnvironment);
+    test('loads the cors allowed headers from the environment', testConfigLoadsCorsAllowedHeadersFromEnvironment);
+    test('loads the auth configuration from the environment', testConfigLoadsAuthConfigurationFromEnvironment);
+});

test/services/router.test.ts

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+import { describe, expect, it } from "vitest";
+
+import type { RouteDefinition, RouteModule } from "../../source/routes/types.js";
+import { ApplicationError } from "../../source/errors/index.js";
+import { ApplicationRouter } from "../../source/services/router.js";
+import { TestConnection } from "../helpers/test-connection.js";
+
+function moduleWith(routes: RouteDefinition[]): RouteModule {
+  return {
+    async getRoutes() {
+      return routes;
+    },
+  };
+}
+
+describe("ApplicationRouter initialization", () => {
+  it("rejects duplicate exact paths during startup", async () => {
+    const route = { url: "/echo", handler: () => undefined };
+
+    await expect(
+      ApplicationRouter.create([moduleWith([route]), moduleWith([route])]),
+    ).rejects.toThrow("Duplicate application route: /echo");
+  });
+
+  it.each(["echo", "/", "/items/:id", "/items?active=true", "/items#active"])(
+    "rejects the invalid route path %s",
+    async (url) => {
+      await expect(
+        ApplicationRouter.create([
+          moduleWith([{ url, handler: () => undefined }]),
+        ]),
+      ).rejects.toThrow("Invalid application route");
+    },
+  );
+});
+
+describe("ApplicationRouter dispatch", () => {
+  it("binds the connection, body, and request ID to one route stream", async () => {
+    const connection = new TestConnection(false, false);
+    const router = await ApplicationRouter.create([
+      moduleWith([
+        {
+          url: "/echo",
+          handler: async (stream) => {
+            expect(stream.connection).toBe(connection);
+            await stream.send(stream.body);
+          },
+        },
+      ]),
+    ]);
+
+    await router.dispatch(
+      { path: "/echo", body: { value: 1 }, requestId: "request-1" },
+      connection,
+    );
+
+    expect(connection.messages).toEqual([
+      {
+        id: "request-1",
+        type: "response",
+        statusCode: 200,
+        body: { value: 1 },
+      },
+    ]);
+
+    await expect(
+      router.dispatch({ path: "/echo/other", body: {} }, connection),
+    ).rejects.toMatchObject({ statusCode: 404 });
+  });
+
+  it("preserves correlation when concurrent requests finish out of order", async () => {
+    const completions = new Map<string, () => void>();
+    const router = await ApplicationRouter.create([
+      moduleWith([
+        {
+          url: "/delayed",
+          handler: async (stream) => {
+            const key = (stream.body as { key: string }).key;
+            await new Promise<void>((resolve) => completions.set(key, resolve));
+            await stream.send({ key });
+          },
+        },
+      ]),
+    ]);
+    const connection = new TestConnection(true, true);
+
+    const first = router.dispatch(
+      { path: "/delayed", body: { key: "A" }, requestId: "A" },
+      connection,
+    );
+    const second = router.dispatch(
+      { path: "/delayed", body: { key: "B" }, requestId: "B" },
+      connection,
+    );
+
+    completions.get("B")?.();
+    await second;
+    completions.get("A")?.();
+    await first;
+
+    expect(connection.messages).toEqual([
+      {
+        id: "B",
+        type: "response",
+        statusCode: 200,
+        body: { key: "B" },
+      },
+      {
+        id: "A",
+        type: "response",
+        statusCode: 200,
+        body: { key: "A" },
+      },
+    ]);
+  });
+
+  it("propagates route failures without infrastructure-specific cleanup", async () => {
+    const error = new Error("route failed");
+    const router = await ApplicationRouter.create([
+      moduleWith([
+        {
+          url: "/failure",
+          handler: () => {
+            throw error;
+          },
+        },
+      ]),
+    ]);
+
+    await expect(
+      router.dispatch({ path: "/failure" }, new TestConnection(false, false)),
+    ).rejects.toBe(error);
+  });
+});