1 files changed, 103 insertions, 0 deletions
diff --git a/misc/output_test.py b/misc/output_test.py
new file mode 100755
index 0000000..1dcde10
--- /dev/null
+++ b/misc/output_test.py
@@ -0,0 +1,103 @@
+#!/usr/bin/env python3
+
+"""Runs ./ninja and checks if the output is correct.
+
+In order to simulate a smart terminal it uses the 'script' command.
+"""
+
+import os
+import platform
+import subprocess
+import sys
+import tempfile
+import unittest
+
+default_env = dict(os.environ)
+if 'NINJA_STATUS' in default_env:
+    del default_env['NINJA_STATUS']
+if 'CLICOLOR_FORCE' in default_env:
+    del default_env['CLICOLOR_FORCE']
+default_env['TERM'] = ''
+
+def run(build_ninja, flags='', pipe=False, env=default_env):
+    with tempfile.NamedTemporaryFile('w') as f:
+        f.write(build_ninja)
+        f.flush()
+        ninja_cmd = './ninja {} -f {}'.format(flags, f.name)
+        try:
+            if pipe:
+                output = subprocess.check_output([ninja_cmd], shell=True, env=env)
+            elif platform.system() == 'Darwin':
+                output = subprocess.check_output(['script', '-q', '/dev/null', 'bash', '-c', ninja_cmd],
+                                                 env=env)
+            else:
+                output = subprocess.check_output(['script', '-qfec', ninja_cmd, '/dev/null'],
+                                                 env=env)
+        except subprocess.CalledProcessError as err:
+            sys.stdout.buffer.write(err.output)
+            raise err
+    final_output = ''
+    for line in output.decode('utf-8').splitlines(True):
+        if len(line) > 0 and line[-1] == '\r':
+            continue
+        final_output += line.replace('\r', '')
+    return final_output
+
+class Output(unittest.TestCase):
+    def test_issue_1418(self):
+        self.assertEqual(run(
+'''rule echo
+  command = sleep $delay && echo $out
+  description = echo $out
+
+build a: echo
+  delay = 3
+build b: echo
+  delay = 2
+build c: echo
+  delay = 1
+'''),
+'''[1/3] echo c\x1b[K
+c
+[2/3] echo b\x1b[K
+b
+[3/3] echo a\x1b[K
+a
+''')
+
+    def test_issue_1214(self):
+        print_red = '''rule echo
+  command = printf '\x1b[31mred\x1b[0m'
+  description = echo $out
+
+build a: echo
+'''
+        # Only strip color when ninja's output is piped.
+        self.assertEqual(run(print_red),
+'''[1/1] echo a\x1b[K
+\x1b[31mred\x1b[0m
+''')
+        self.assertEqual(run(print_red, pipe=True),
+'''[1/1] echo a
+red
+''')
+        # Even in verbose mode, colors should still only be stripped when piped.
+        self.assertEqual(run(print_red, flags='-v'),
+'''[1/1] printf '\x1b[31mred\x1b[0m'
+\x1b[31mred\x1b[0m
+''')
+        self.assertEqual(run(print_red, flags='-v', pipe=True),
+'''[1/1] printf '\x1b[31mred\x1b[0m'
+red
+''')
+
+        # CLICOLOR_FORCE=1 can be used to disable escape code stripping.
+        env = default_env.copy()
+        env['CLICOLOR_FORCE'] = '1'
+        self.assertEqual(run(print_red, pipe=True, env=env),
+'''[1/1] echo a
+\x1b[31mred\x1b[0m
+''')
+
+if __name__ == '__main__':
+    unittest.main()