From 4464648c38021bb3fcbac6f978bf40e9636dad4c Mon Sep 17 00:00:00 2001
From: Henrique <typoon@gmail.com>
Date: Mon, 25 Nov 2019 13:08:09 -0500
Subject: Logic to handle multiple instances using CommandHistory.

---
 test/mitmproxy/addons/test_command_history.py | 82 +++++++++++++++++++++++++--
 1 file changed, 76 insertions(+), 6 deletions(-)

(limited to 'test')

diff --git a/test/mitmproxy/addons/test_command_history.py b/test/mitmproxy/addons/test_command_history.py
index 405b8323..d22e1fb1 100644
--- a/test/mitmproxy/addons/test_command_history.py
+++ b/test/mitmproxy/addons/test_command_history.py
@@ -25,7 +25,7 @@ def tctx():
     yield tctx
 
     # This runs after each test
-    ch.command_history_file.close()  # Makes windows happy
+    ch.cleanup()
     shutil.rmtree(confdir)
 
 
@@ -42,7 +42,7 @@ class TestCommandHistory:
         saved_commands = [cmd for cmd in history.saved_commands]
         assert saved_commands == ['cmd1', 'cmd2', 'cmd3']
 
-        history.command_history_file.close()
+        history.cleanup()
 
     def test_add_command(self, tctx):
         history = command_history.CommandHistory(3)
@@ -77,7 +77,7 @@ class TestCommandHistory:
         saved_commands = [cmd for cmd in history.saved_commands]
         assert saved_commands == ['cmd4', 'cmd3', 'cmd2']
 
-        history.command_history_file.close()
+        history.cleanup()
 
     def test_get_next_and_prev(self, tctx):
         history = command_history.CommandHistory(5)
@@ -152,7 +152,7 @@ class TestCommandHistory:
         assert history.get_next() == ''
         assert history.get_next() == ''
 
-        history.command_history_file.close()
+        history.cleanup()
 
     def test_clear(self, tctx):
         history = command_history.CommandHistory(3)
@@ -169,7 +169,7 @@ class TestCommandHistory:
         assert history.get_prev() == ''
         assert history.get_prev() == ''
 
-        history.command_history_file.close()
+        history.cleanup()
 
     def test_filter(self, tctx):
         history = command_history.CommandHistory(3)
@@ -203,4 +203,74 @@ class TestCommandHistory:
         assert history.get_next() == ''
         assert history.get_next() == ''
 
-        history.command_history_file.close()
+        history.cleanup()
+
+    def test_multiple_instances(self, tctx):
+
+        instances = [
+            command_history.CommandHistory(10),
+            command_history.CommandHistory(10),
+            command_history.CommandHistory(10)
+        ]
+
+        for i in instances:
+            saved_commands = [cmd for cmd in i.saved_commands]
+            assert saved_commands == []
+
+        instances[0].add_command('cmd1')
+        saved_commands = [cmd for cmd in instances[0].saved_commands]
+        assert saved_commands == ['cmd1']
+
+        # These instances haven't yet added a new command, so they haven't
+        # yet reloaded their commands from the command file.
+        # This is expected, because if the user is filtering a command on
+        # another window, we don't want to interfere with that
+        saved_commands = [cmd for cmd in instances[1].saved_commands]
+        assert saved_commands == []
+        saved_commands = [cmd for cmd in instances[2].saved_commands]
+        assert saved_commands == []
+
+        # Since the second instanced added a new command, its list of
+        # saved commands has been updated to have the commands from the
+        # first instance + its own commands
+        instances[1].add_command('cmd2')
+        saved_commands = [cmd for cmd in instances[1].saved_commands]
+        assert saved_commands == ['cmd1', 'cmd2']
+
+        saved_commands = [cmd for cmd in instances[0].saved_commands]
+        assert saved_commands == ['cmd1']
+
+        # Third instance is still empty as it has not yet ran any command
+        saved_commands = [cmd for cmd in instances[2].saved_commands]
+        assert saved_commands == []
+
+        instances[2].add_command('cmd3')
+        saved_commands = [cmd for cmd in instances[2].saved_commands]
+        assert saved_commands == ['cmd1', 'cmd2', 'cmd3']
+
+        instances[0].add_command('cmd4')
+        saved_commands = [cmd for cmd in instances[0].saved_commands]
+        assert saved_commands == ['cmd1', 'cmd2', 'cmd3', 'cmd4']
+
+        instances.append(command_history.CommandHistory(10))
+        saved_commands = [cmd for cmd in instances[3].saved_commands]
+        assert saved_commands == ['cmd1', 'cmd2', 'cmd3', 'cmd4']
+
+        instances[0].add_command('cmd_before_close')
+        instances.pop(0)
+
+        saved_commands = [cmd for cmd in instances[0].saved_commands]
+        assert saved_commands == ['cmd1', 'cmd2']
+
+        instances[0].add_command('new_cmd')
+        saved_commands = [cmd for cmd in instances[0].saved_commands]
+        assert saved_commands == ['cmd1', 'cmd2', 'cmd3', 'cmd4', 'cmd_before_close', 'new_cmd']
+
+        instances.pop(0)
+        instances.pop(0)
+        instances.pop(0)
+
+        _path = os.path.join(tctx.options.confdir, 'command_history')
+        lines = open(_path, 'r').readlines()
+        saved_commands = [cmd.strip() for cmd in lines]
+        assert saved_commands == ['cmd1', 'cmd2', 'cmd3', 'cmd4', 'cmd_before_close', 'new_cmd']
-- 
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