Add tests for command line invoke

Author: samwillis

tests/test_comand_line.py

@@ -0,0 +1,70 @@
+"Test nodejs command line"
+
+import os, sys, subprocess
+
+
+THIS_DIR = os.path.dirname(os.path.abspath(__file__))
+
+
+def test_runs():
+    assert subprocess.call([sys.executable, "-m", "nodejs", "--version"]) == 0
+
+
+def test_version(capfd):
+    subprocess.call([sys.executable, "-m", "nodejs", "--version"])
+    out, err = capfd.readouterr()
+    assert out.startswith('v')
+
+
+def test_eval(capfd):
+    subprocess.call([sys.executable, "-m", "nodejs", "--eval", "console.log('hello')"])
+    out, err = capfd.readouterr()
+    assert out.strip() == 'hello'
+
+
+def test_eval_error(capfd):
+    subprocess.call([sys.executable, "-m", "nodejs", "--eval", "console.error('error')"])
+    out, err = capfd.readouterr()
+    assert err.strip() == 'error'
+
+
+def test_eval_error_exit():
+    ret = subprocess.call([sys.executable, "-m", "nodejs", "--eval", "process.exit(1)"])
+    assert ret == 1
+
+
+def test_script(capfd):
+    subprocess.call([sys.executable, "-m", "nodejs", os.path.join(THIS_DIR, "test_node", "test_script.js")])
+    out, err = capfd.readouterr()
+    assert out.strip() == 'hello'
+
+
+def test_args(capfd):
+    subprocess.call([sys.executable, "-m", "nodejs", os.path.join(THIS_DIR, "test_node", "test_args.js"), "hello"])
+    out, err = capfd.readouterr()
+    assert out.strip() == 'hello'
+
+
+def test_npm_runs():
+    assert subprocess.call([sys.executable, "-m", "nodejs.npm", "--version"]) == 0
+
+
+def test_npm_version(capfd):
+    subprocess.call([sys.executable, "-m", "nodejs.npm", "--version"])
+    out, err = capfd.readouterr()
+    assert isinstance(out, str)
+
+
+def test_install_package(tmp_path, capfd):
+    os.chdir(tmp_path)
+    subprocess.call([sys.executable, "-m", "nodejs.npm", "init", "-y"])
+    assert (tmp_path / 'package.json').exists()
+    subprocess.call([sys.executable, "-m", "nodejs.npm", "install", "is-even"])
+    assert (tmp_path / 'node_modules' / 'is-even').exists()
+    out, err = capfd.readouterr()
+    subprocess.call([sys.executable, "-m", "nodejs", "--eval", 'console.log(require("is-even")(42))'])
+    out, err = capfd.readouterr()
+    assert out.strip() == 'true'
+    subprocess.call([sys.executable, "-m", "nodejs", "--eval", 'console.log(require("is-even")(43))'])
+    out, err = capfd.readouterr()
+    assert out.strip() == 'false'