[tor-commits] [stem/master] Test event_listening example

[atagar@xxxxxxxxxxxxxx]

commit 4da373ca6994bf9954755ba5821fd4e39c507619
Author: Damian Johnson <atagar@xxxxxxxxxxxxxx>
Date:   Tue Sep 29 14:05:17 2020 -0700

    Test event_listening example
---
 docs/_static/example/event_listening.py | 42 ++++++++++++++++-----------------
 test/unit/examples.py                   | 18 ++++++++++++--
 2 files changed, 37 insertions(+), 23 deletions(-)

diff --git a/docs/_static/example/event_listening.py b/docs/_static/example/event_listening.py
index ff8c1469..b808a977 100644
--- a/docs/_static/example/event_listening.py
+++ b/docs/_static/example/event_listening.py
@@ -7,21 +7,21 @@ from stem.util import str_tools
 # colors that curses can handle
 
 COLOR_LIST = {
-  "red": curses.COLOR_RED,
-  "green": curses.COLOR_GREEN,
-  "yellow": curses.COLOR_YELLOW,
-  "blue": curses.COLOR_BLUE,
-  "cyan": curses.COLOR_CYAN,
-  "magenta": curses.COLOR_MAGENTA,
-  "black": curses.COLOR_BLACK,
-  "white": curses.COLOR_WHITE,
+  'red': curses.COLOR_RED,
+  'green': curses.COLOR_GREEN,
+  'yellow': curses.COLOR_YELLOW,
+  'blue': curses.COLOR_BLUE,
+  'cyan': curses.COLOR_CYAN,
+  'magenta': curses.COLOR_MAGENTA,
+  'black': curses.COLOR_BLACK,
+  'white': curses.COLOR_WHITE,
 }
 
 GRAPH_WIDTH = 40
 GRAPH_HEIGHT = 8
 
-DOWNLOAD_COLOR = "green"
-UPLOAD_COLOR = "blue"
+DOWNLOAD_COLOR = 'green'
+UPLOAD_COLOR = 'blue'
 
 def main():
   with Controller.from_port(port = 9051) as controller:
@@ -74,10 +74,10 @@ def _render_graph(window, bandwidth_rates):
 
   # show the latest values at the top
 
-  label = "Downloaded (%s/s):" % str_tools.size_label(download_rates[0], 1)
+  label = 'Downloaded (%s/s):' % str_tools.size_label(download_rates[0], 1)
   window.addstr(0, 1, label, DOWNLOAD_COLOR, curses.A_BOLD)
 
-  label = "Uploaded (%s/s):" % str_tools.size_label(upload_rates[0], 1)
+  label = 'Uploaded (%s/s):' % str_tools.size_label(upload_rates[0], 1)
   window.addstr(0, GRAPH_WIDTH + 7, label, UPLOAD_COLOR, curses.A_BOLD)
 
   # draw the graph bounds in KB
@@ -85,24 +85,24 @@ def _render_graph(window, bandwidth_rates):
   max_download_rate = max(download_rates)
   max_upload_rate = max(upload_rates)
 
-  window.addstr(1, 1, "%4i" % (max_download_rate / 1024), DOWNLOAD_COLOR)
-  window.addstr(GRAPH_HEIGHT, 1, "   0", DOWNLOAD_COLOR)
+  window.addstr(1, 1, '%4i' % (max_download_rate / 1024), DOWNLOAD_COLOR)
+  window.addstr(GRAPH_HEIGHT, 1, '   0', DOWNLOAD_COLOR)
 
-  window.addstr(1, GRAPH_WIDTH + 7, "%4i" % (max_upload_rate / 1024), UPLOAD_COLOR)
-  window.addstr(GRAPH_HEIGHT, GRAPH_WIDTH + 7, "   0", UPLOAD_COLOR)
+  window.addstr(1, GRAPH_WIDTH + 7, '%4i' % (max_upload_rate / 1024), UPLOAD_COLOR)
+  window.addstr(GRAPH_HEIGHT, GRAPH_WIDTH + 7, '   0', UPLOAD_COLOR)
 
   # draw the graph
 
   for col in range(GRAPH_WIDTH):
     col_height = GRAPH_HEIGHT * download_rates[col] / max(max_download_rate, 1)
 
-    for row in range(col_height):
-      window.addstr(GRAPH_HEIGHT - row, col + 6, " ", DOWNLOAD_COLOR, curses.A_STANDOUT)
+    for row in range(int(col_height)):
+      window.addstr(GRAPH_HEIGHT - row, col + 6, ' ', DOWNLOAD_COLOR, curses.A_STANDOUT)
 
     col_height = GRAPH_HEIGHT * upload_rates[col] / max(max_upload_rate, 1)
 
-    for row in range(col_height):
-      window.addstr(GRAPH_HEIGHT - row, col + GRAPH_WIDTH + 12, " ", UPLOAD_COLOR, curses.A_STANDOUT)
+    for row in range(int(col_height)):
+      window.addstr(GRAPH_HEIGHT - row, col + GRAPH_WIDTH + 12, ' ', UPLOAD_COLOR, curses.A_STANDOUT)
 
   window.refresh()
 
@@ -154,7 +154,7 @@ class Window(object):
 
     if color is not None:
       if color not in self._colors:
-        recognized_colors = ", ".join(self._colors.keys())
+        recognized_colors = ', '.join(self._colors.keys())
         raise ValueError("The '%s' color isn't recognized: %s" % (color, recognized_colors))
 
       attr |= self._colors[color]
diff --git a/test/unit/examples.py b/test/unit/examples.py
index 35aa80bb..d9a3f6fa 100644
--- a/test/unit/examples.py
+++ b/test/unit/examples.py
@@ -539,8 +539,22 @@ class TestExamples(unittest.TestCase):
     finally:
       sys.modules = original_modules
 
-  def test_event_listening(self):
-    pass
+  @patch('stem.control.Controller.from_port', spec = Controller)
+  def test_event_listening(self, from_port_mock):
+    # This is a lengthy example that's mostly curses. This is just a surface
+    # level test to check for syntax issues and such.
+
+    original_modules = dict(sys.modules)
+
+    try:
+      sys.modules['curses'] = Mock()
+
+      import event_listening
+
+      event_listening.main()
+      event_listening._render_graph(Mock(), [(0, 0)] * event_listening.GRAPH_WIDTH)
+    finally:
+      sys.modules = original_modules
 
   @patch('stem.control.Controller.from_port', spec = Controller)
   @patch('sys.stdout', new_callable = io.StringIO)



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