feat(#97): add test for chained commands

test/commands/test_compile.js

@@ -89,4 +89,35 @@ describe('compile', function() {
     );
     done();
   });
+
+  it('Cleans and compiles a simple .EO program', function(done) {
+    home = path.resolve('temp/test-compile/simple');
+    fs.rmSync(home, {recursive: true, force: true});
+    fs.mkdirSync(path.resolve(home, 'src'), {recursive: true});
+    fs.writeFileSync(
+      path.resolve(home, 'src/simple.eo'),
+      [
+        '+package foo.bar',
+        '+alias org.eolang.io.stdout',
+        '',
+        '[args...] > app',
+        '  stdout "Hello, world!" > @',
+      ].join('\n')
+    );
+    const stdout = runSync([
+      'clean', 'compile', '-s', path.resolve(home, 'src'), '-t', path.resolve(home, 'target'),
+    ]);
+    assertFilesExist(
+      stdout, home,
+      [
+        'target/generated-sources/EOfoo/EObar/EOapp.java',
+        'target/generated-sources/EOorg/EOeolang/EObytes.java',
+        'target/classes/EOfoo/EObar/EOapp.class',
+        'target/classes/org/eolang/Phi.class',
+        'target/classes/EOorg/EOeolang/EOint.class',
+      ]
+    );
+    assert(!fs.existsSync(path.resolve('../../mvnw/target')));
+    done();
+  });
 });