#388 and #417 Split output tests in two

 * Based on suggestion by @akaihola
 * We still have two tests and the second is checking that the output
   to a file or stdout are identical and that the stdout outpout 
   contains only scan results.
 * We cannot test easily that the progressbar is sent to stderr as
   Click test utilities capture all outputs at once mixing stderr
   and stdout

Signed-off-by: Philippe Ombredanne <[email protected]>

Author: pombredanne

tests/scancode/test_cli.py

@@ -466,7 +466,17 @@ def test_scan_can_handle_licenses_with_unicode_metadata(monkeypatch):
     assert 'Scanning done' in result.output
 
 
-def test_scan_quiet_does_not_echo_anything(monkeypatch):
+def test_scan_quiet_to_file_does_not_echo_anything(monkeypatch):
+    monkeypatch.setattr(click._termui_impl, 'isatty', lambda _: True)
+    test_dir = test_env.extract_test_tar('info/basic.tgz')
+    runner = CliRunner()
+    result1_file = test_env.get_temp_file('json')
+    result1 = runner.invoke(cli.scancode, ['--quiet', '--info', test_dir, result1_file], catch_exceptions=True)
+    assert result1.exit_code == 0
+    assert not result1.output
+
+
+def test_scan_quiet_to_stdout_only_echoes_json_results(monkeypatch):
     monkeypatch.setattr(click._termui_impl, 'isatty', lambda _: True)
     test_dir = test_env.extract_test_tar('info/basic.tgz')
     runner = CliRunner()