test: Add CLI integration tests

test/integration/Cli.test.ts

@@ -0,0 +1,49 @@
+import type { CliResolver } from '../../src/init/CliResolver';
+import { resolveModulePath } from '../../src/util/PathUtil';
+import { instantiateFromConfig } from './Config';
+
+// Needed to prevent yargs from stopping the process on error
+const error = jest.spyOn(console, 'error').mockImplementation(jest.fn());
+const exit = jest.spyOn(process, 'exit').mockImplementation(jest.fn() as any);
+
+describe('An instantiated CliResolver', (): void => {
+  let cliResolver: CliResolver;
+
+  beforeAll(async(): Promise<void> => {
+    // Create the CliExtractor
+    cliResolver = await instantiateFromConfig(
+      'urn:solid-server-app-setup:default:CliResolver',
+      resolveModulePath('config/default.json'),
+    );
+  });
+
+  it('converts known abbreviations to the full parameter.', async(): Promise<void> => {
+    const shorthand = await cliResolver.cliExtractor.handleSafe([ 'node', 'server.js',
+      '-c', 'c',
+      '-m', 'm',
+      '-l', 'l',
+      '-b', 'b',
+      '-p', '3000',
+      '-f', 'f',
+      '-t',
+      '-s', 's',
+      '-w', '2',
+    ]);
+    expect(shorthand.config).toBe('c');
+    expect(shorthand.mainModulePath).toBe('m');
+    expect(shorthand.loggingLevel).toBe('l');
+    expect(shorthand.baseUrl).toBe('b');
+    expect(shorthand.port).toBe(3000);
+    expect(shorthand.rootFilePath).toBe('f');
+    expect(shorthand.showStackTrace).toBe(true);
+    expect(shorthand.sparqlEndpoint).toBe('s');
+    expect(shorthand.workers).toBe(2);
+  });
+
+  it('errors on unknown parameters.', async(): Promise<void> => {
+    await cliResolver.cliExtractor.handleSafe([ 'node', 'server.js', '-a', 'abc' ]);
+
+    expect(exit).toHaveBeenCalledTimes(1);
+    expect(error).toHaveBeenCalledWith('Unknown argument: a');
+  });
+});