Add a test for status command

test/cli.test.ts

@@ -4,6 +4,7 @@ describe('Test laconic CLI commands', () => {
   beforeAll(async () => {
     // TODO: Install laconic binary (create symlink in path)
     // TODO: Create a temp directory to run the tests in and cd into that
+    // TODO: Create the required config
   });
 
   afterAll(async () => {
@@ -22,7 +23,44 @@ describe('Test laconic CLI commands', () => {
     expect(result.status).toBe(1);
   });
 
+  // TODO: Test subcommands
   describe('laconic <command>', () => {
-    // TODO: Test subcommands
+    test('laconic cns', async () => {
+      const result = spawnSync('laconic', ['cns']);
+
+      const output = result.stdout.toString().trim();
+      const errorOutput = result.stderr.toString().trim();
+
+      // Expect error with usage string
+      expect(output).toBe('');
+      expect(errorOutput).toContain('laconic cns');
+      expect(errorOutput).toContain('CNS tools');
+      expect(errorOutput).toContain('Commands:');
+      expect(result.status).toBe(1);
+    });
+
+    describe('laconic cns <command>', () => {
+      test('laconic cns status', async () => {
+        const result = spawnSync('laconic', ['cns', 'status']);
+
+        const output = result.stdout.toString().trim();
+        const outputObj = JSON.parse(output);
+        const errorOutput = result.stderr.toString().trim();
+
+        // Expect output object to have CNS status props
+        expect(outputObj).toHaveProperty('version');
+        expect(outputObj).toHaveProperty('node');
+        expect(outputObj).toHaveProperty('node.network', 'laconic_9000-1');
+        expect(outputObj).toHaveProperty('sync');
+        expect(outputObj).toHaveProperty('validator');
+        expect(outputObj).toHaveProperty('validators');
+        expect(outputObj).toHaveProperty('num_peers');
+        expect(outputObj).toHaveProperty('peers');
+        expect(outputObj).toHaveProperty('disk_usage');
+
+        expect(errorOutput).toBe('');
+        expect(result.status).toBe(0);
+      });
+    });
   });
 });