rename src to source

test/services/config.test.ts

@@ -0,0 +1,120 @@
+import { describe, expect, test, vi } from 'vitest';
+
+import { Config } from '../../source/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);
+});