feat: max-length config (#194)

Co-authored-by: Hiroki Osame <hiroki.osame@gmail.com>

tests/specs/config.ts

@@ -25,6 +25,18 @@ export default testSuite(({ describe }) => {
 			expect(stderr).toMatch('Invalid config property OPENAI_KEY: Must start with "sk-"');
 		});
 
+		await test('set config file', async () => {
+			await aicommits(['config', 'set', openAiToken]);
+
+			const configFile = await fs.readFile(configPath, 'utf8');
+			expect(configFile).toMatch(openAiToken);
+		});
+
+		await test('get config file', async () => {
+			const { stdout } = await aicommits(['config', 'get', 'OPENAI_KEY']);
+			expect(stdout).toBe(openAiToken);
+		});
+
 		await test('reading unknown config', async () => {
 			await fs.appendFile(configPath, 'UNKNOWN=1');
 
@@ -57,6 +69,38 @@ export default testSuite(({ describe }) => {
 			});
 		});
 
+		await describe('max-length', ({ test }) => {
+			test('must be an integer', async () => {
+				const { stderr } = await aicommits(['config', 'set', 'max-length=abc'], {
+					reject: false,
+				});
+
+				expect(stderr).toMatch('Must be an integer');
+			});
+
+			test('must be at least 20 characters', async () => {
+				const { stderr } = await aicommits(['config', 'set', 'max-length=10'], {
+					reject: false,
+				});
+
+				expect(stderr).toMatch(/must be greater than 20 characters/i);
+			});
+
+			test('updates config', async () => {
+				const defaultConfig = await aicommits(['config', 'get', 'max-length']);
+				expect(defaultConfig.stdout).toBe('max-length=50');
+
+				const maxLength = 'max-length=60';
+				await aicommits(['config', 'set', maxLength]);
+
+				const configFile = await fs.readFile(configPath, 'utf8');
+				expect(configFile).toMatch(maxLength);
+
+				const get = await aicommits(['config', 'get', 'max-length']);
+				expect(get.stdout).toBe(maxLength);
+			});
+		});
+
 		await test('set config file', async () => {
 			await aicommits(['config', 'set', openAiToken]);
 
@@ -66,7 +110,6 @@ export default testSuite(({ describe }) => {
 
 		await test('get config file', async () => {
 			const { stdout } = await aicommits(['config', 'get', 'OPENAI_KEY']);
-
 			expect(stdout).toBe(openAiToken);
 		});