Replaced the test case hierarchy schema with a vector version.

The OmniGraffle source file is included for future use.

6 files changed, 893 insertions, 4 deletions

diff --git a/docs/topics/_images/django_unittest_classes_hierarchy.graffle b/docs/topics/_images/django_unittest_classes_hierarchy.graffle
new file mode 100644
index 0000000000..7211c0f3be
--- /dev/null
+++ b/docs/topics/_images/django_unittest_classes_hierarchy.graffle
@@ -0,0 +1,883 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>ActiveLayerIndex</key>
+	<integer>0</integer>
+	<key>ApplicationVersion</key>
+	<array>
+		<string>com.omnigroup.OmniGrafflePro</string>
+		<string>139.16.0.171715</string>
+	</array>
+	<key>AutoAdjust</key>
+	<true/>
+	<key>BackgroundGraphic</key>
+	<dict>
+		<key>Bounds</key>
+		<string>{{0, 0}, {559.28997802734375, 782.8900146484375}}</string>
+		<key>Class</key>
+		<string>SolidGraphic</string>
+		<key>ID</key>
+		<integer>2</integer>
+		<key>Style</key>
+		<dict>
+			<key>shadow</key>
+			<dict>
+				<key>Draws</key>
+				<string>NO</string>
+			</dict>
+			<key>stroke</key>
+			<dict>
+				<key>Draws</key>
+				<string>NO</string>
+			</dict>
+		</dict>
+	</dict>
+	<key>BaseZoom</key>
+	<integer>0</integer>
+	<key>CanvasOrigin</key>
+	<string>{0, 0}</string>
+	<key>ColumnAlign</key>
+	<integer>1</integer>
+	<key>ColumnSpacing</key>
+	<real>36</real>
+	<key>CreationDate</key>
+	<string>2012-12-16 18:52:14 +0000</string>
+	<key>Creator</key>
+	<string>Aymeric Augustin</string>
+	<key>DisplayScale</key>
+	<string>1.000 cm = 1.000 cm</string>
+	<key>GraphDocumentVersion</key>
+	<integer>8</integer>
+	<key>GraphicsList</key>
+	<array>
+		<dict>
+			<key>Class</key>
+			<string>LineGraphic</string>
+			<key>Head</key>
+			<dict>
+				<key>ID</key>
+				<integer>8</integer>
+			</dict>
+			<key>ID</key>
+			<integer>29</integer>
+			<key>OrthogonalBarAutomatic</key>
+			<true/>
+			<key>OrthogonalBarPoint</key>
+			<string>{0, 0}</string>
+			<key>OrthogonalBarPosition</key>
+			<real>-1</real>
+			<key>Points</key>
+			<array>
+				<string>{369, 459}</string>
+				<string>{216, 400.5}</string>
+			</array>
+			<key>Style</key>
+			<dict>
+				<key>stroke</key>
+				<dict>
+					<key>HeadArrow</key>
+					<string>UMLInheritance</string>
+					<key>HeadScale</key>
+					<real>0.79999995231628418</real>
+					<key>Legacy</key>
+					<true/>
+					<key>LineType</key>
+					<integer>2</integer>
+					<key>TailArrow</key>
+					<string>0</string>
+				</dict>
+			</dict>
+			<key>Tail</key>
+			<dict>
+				<key>ID</key>
+				<integer>6</integer>
+				<key>Info</key>
+				<integer>2</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Class</key>
+			<string>LineGraphic</string>
+			<key>Head</key>
+			<dict>
+				<key>ID</key>
+				<integer>12</integer>
+				<key>Info</key>
+				<integer>1</integer>
+			</dict>
+			<key>ID</key>
+			<integer>27</integer>
+			<key>OrthogonalBarAutomatic</key>
+			<true/>
+			<key>OrthogonalBarPoint</key>
+			<string>{0, 0}</string>
+			<key>OrthogonalBarPosition</key>
+			<real>-1</real>
+			<key>Points</key>
+			<array>
+				<string>{135, 270}</string>
+				<string>{369, 225}</string>
+			</array>
+			<key>Style</key>
+			<dict>
+				<key>stroke</key>
+				<dict>
+					<key>HeadArrow</key>
+					<string>UMLInheritance</string>
+					<key>HeadScale</key>
+					<real>0.79999995231628418</real>
+					<key>Legacy</key>
+					<true/>
+					<key>LineType</key>
+					<integer>2</integer>
+					<key>TailArrow</key>
+					<string>0</string>
+				</dict>
+			</dict>
+			<key>Tail</key>
+			<dict>
+				<key>ID</key>
+				<integer>26</integer>
+				<key>Position</key>
+				<real>0.5</real>
+			</dict>
+		</dict>
+		<dict>
+			<key>Class</key>
+			<string>LineGraphic</string>
+			<key>Head</key>
+			<dict>
+				<key>ID</key>
+				<integer>10</integer>
+			</dict>
+			<key>ID</key>
+			<integer>26</integer>
+			<key>OrthogonalBarAutomatic</key>
+			<true/>
+			<key>OrthogonalBarPoint</key>
+			<string>{0, 0}</string>
+			<key>OrthogonalBarPosition</key>
+			<real>-1</real>
+			<key>Points</key>
+			<array>
+				<string>{135, 315}</string>
+				<string>{135, 225}</string>
+			</array>
+			<key>Style</key>
+			<dict>
+				<key>stroke</key>
+				<dict>
+					<key>HeadArrow</key>
+					<string>UMLInheritance</string>
+					<key>HeadScale</key>
+					<real>0.79999995231628418</real>
+					<key>Legacy</key>
+					<true/>
+					<key>LineType</key>
+					<integer>2</integer>
+					<key>TailArrow</key>
+					<string>0</string>
+				</dict>
+			</dict>
+			<key>Tail</key>
+			<dict>
+				<key>ID</key>
+				<integer>9</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Class</key>
+			<string>LineGraphic</string>
+			<key>Head</key>
+			<dict>
+				<key>ID</key>
+				<integer>9</integer>
+			</dict>
+			<key>ID</key>
+			<integer>25</integer>
+			<key>OrthogonalBarAutomatic</key>
+			<true/>
+			<key>OrthogonalBarPoint</key>
+			<string>{0, 0}</string>
+			<key>OrthogonalBarPosition</key>
+			<real>-1</real>
+			<key>Points</key>
+			<array>
+				<string>{135, 387}</string>
+				<string>{135, 342}</string>
+			</array>
+			<key>Style</key>
+			<dict>
+				<key>stroke</key>
+				<dict>
+					<key>HeadArrow</key>
+					<string>UMLInheritance</string>
+					<key>HeadScale</key>
+					<real>0.79999995231628418</real>
+					<key>Legacy</key>
+					<true/>
+					<key>LineType</key>
+					<integer>2</integer>
+					<key>TailArrow</key>
+					<string>0</string>
+				</dict>
+			</dict>
+			<key>Tail</key>
+			<dict>
+				<key>ID</key>
+				<integer>8</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Class</key>
+			<string>LineGraphic</string>
+			<key>Head</key>
+			<dict>
+				<key>ID</key>
+				<integer>8</integer>
+			</dict>
+			<key>ID</key>
+			<integer>23</integer>
+			<key>OrthogonalBarAutomatic</key>
+			<true/>
+			<key>OrthogonalBarPoint</key>
+			<string>{0, 0}</string>
+			<key>OrthogonalBarPosition</key>
+			<real>-1</real>
+			<key>Points</key>
+			<array>
+				<string>{135, 459}</string>
+				<string>{135, 414}</string>
+			</array>
+			<key>Style</key>
+			<dict>
+				<key>stroke</key>
+				<dict>
+					<key>HeadArrow</key>
+					<string>UMLInheritance</string>
+					<key>HeadScale</key>
+					<real>0.79999995231628418</real>
+					<key>Legacy</key>
+					<true/>
+					<key>LineType</key>
+					<integer>2</integer>
+					<key>TailArrow</key>
+					<string>0</string>
+				</dict>
+			</dict>
+			<key>Tail</key>
+			<dict>
+				<key>ID</key>
+				<integer>7</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{378, 252}, {81, 27}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>FontInfo</key>
+			<dict>
+				<key>Font</key>
+				<string>Helvetica</string>
+				<key>Size</key>
+				<real>12</real>
+			</dict>
+			<key>ID</key>
+			<integer>22</integer>
+			<key>Shape</key>
+			<string>NoteShape</string>
+			<key>Style</key>
+			<dict>
+				<key>stroke</key>
+				<dict>
+					<key>Color</key>
+					<dict>
+						<key>b</key>
+						<string>0</string>
+						<key>g</key>
+						<string>0.501961</string>
+						<key>r</key>
+						<string>0</string>
+					</dict>
+				</dict>
+			</dict>
+			<key>Text</key>
+			<dict>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf340
+\cocoascreenfonts1{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
+{\colortbl;\red255\green255\blue255;\red0\green128\blue0;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\pardirnatural\qc
+
+\f0\i\fs24 \cf2 Python &lt; 2.7}</string>
+				<key>VerticalPad</key>
+				<integer>0</integer>
+			</dict>
+			<key>TextRelativeArea</key>
+			<string>{{0, 0}, {1, 1}}</string>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{45, 252}, {81, 27}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>FontInfo</key>
+			<dict>
+				<key>Font</key>
+				<string>Helvetica</string>
+				<key>Size</key>
+				<real>12</real>
+			</dict>
+			<key>ID</key>
+			<integer>20</integer>
+			<key>Shape</key>
+			<string>NoteShape</string>
+			<key>Style</key>
+			<dict>
+				<key>stroke</key>
+				<dict>
+					<key>Color</key>
+					<dict>
+						<key>b</key>
+						<string>0</string>
+						<key>g</key>
+						<string>0.501961</string>
+						<key>r</key>
+						<string>0</string>
+					</dict>
+				</dict>
+			</dict>
+			<key>Text</key>
+			<dict>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf340
+\cocoascreenfonts1{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
+{\colortbl;\red255\green255\blue255;\red0\green128\blue0;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\pardirnatural\qc
+
+\f0\i\fs24 \cf2 Python \uc0\u8805  2.7}</string>
+				<key>VerticalPad</key>
+				<integer>0</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{288, 198}, {162, 27}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>ID</key>
+			<integer>12</integer>
+			<key>Magnets</key>
+			<array>
+				<string>{0, 1}</string>
+				<string>{0, -1}</string>
+				<string>{1, 0}</string>
+				<string>{-1, 0}</string>
+			</array>
+			<key>Shape</key>
+			<string>Rectangle</string>
+			<key>Style</key>
+			<dict>
+				<key>fill</key>
+				<dict>
+					<key>FillType</key>
+					<integer>2</integer>
+					<key>GradientAngle</key>
+					<real>90</real>
+					<key>GradientColor</key>
+					<dict>
+						<key>w</key>
+						<string>0.666667</string>
+					</dict>
+				</dict>
+				<key>stroke</key>
+				<dict>
+					<key>CornerRadius</key>
+					<real>5</real>
+				</dict>
+			</dict>
+			<key>Text</key>
+			<dict>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf340
+\cocoascreenfonts1{\fonttbl\f0\fmodern\fcharset0 Courier;}
+{\colortbl;\red255\green255\blue255;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\pardirnatural\qc
+
+\f0\fs24 \cf0 TestCase}</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{54, 198}, {162, 27}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>ID</key>
+			<integer>10</integer>
+			<key>Magnets</key>
+			<array>
+				<string>{0, 1}</string>
+				<string>{0, -1}</string>
+				<string>{1, 0}</string>
+				<string>{-1, 0}</string>
+			</array>
+			<key>Shape</key>
+			<string>Rectangle</string>
+			<key>Style</key>
+			<dict>
+				<key>fill</key>
+				<dict>
+					<key>FillType</key>
+					<integer>2</integer>
+					<key>GradientAngle</key>
+					<real>90</real>
+					<key>GradientColor</key>
+					<dict>
+						<key>w</key>
+						<string>0.666667</string>
+					</dict>
+				</dict>
+				<key>stroke</key>
+				<dict>
+					<key>CornerRadius</key>
+					<real>5</real>
+				</dict>
+			</dict>
+			<key>Text</key>
+			<dict>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf340
+\cocoascreenfonts1{\fonttbl\f0\fmodern\fcharset0 Courier;}
+{\colortbl;\red255\green255\blue255;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\pardirnatural\qc
+
+\f0\fs24 \cf0 TestCase}</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{54, 315}, {162, 27}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>ID</key>
+			<integer>9</integer>
+			<key>Magnets</key>
+			<array>
+				<string>{0, 1}</string>
+				<string>{0, -1}</string>
+				<string>{1, 0}</string>
+				<string>{-1, 0}</string>
+			</array>
+			<key>Shape</key>
+			<string>Rectangle</string>
+			<key>Style</key>
+			<dict>
+				<key>fill</key>
+				<dict>
+					<key>FillType</key>
+					<integer>2</integer>
+					<key>GradientAngle</key>
+					<real>90</real>
+					<key>GradientColor</key>
+					<dict>
+						<key>w</key>
+						<string>0.666667</string>
+					</dict>
+				</dict>
+				<key>stroke</key>
+				<dict>
+					<key>CornerRadius</key>
+					<real>5</real>
+				</dict>
+			</dict>
+			<key>Text</key>
+			<dict>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf340
+\cocoascreenfonts1{\fonttbl\f0\fmodern\fcharset0 Courier;}
+{\colortbl;\red255\green255\blue255;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\pardirnatural\qc
+
+\f0\fs24 \cf0 SimpleTestCase}</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{54, 387}, {162, 27}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>ID</key>
+			<integer>8</integer>
+			<key>Magnets</key>
+			<array>
+				<string>{0, 1}</string>
+				<string>{0, -1}</string>
+				<string>{1, 0}</string>
+				<string>{-1, 0}</string>
+			</array>
+			<key>Shape</key>
+			<string>Rectangle</string>
+			<key>Style</key>
+			<dict>
+				<key>fill</key>
+				<dict>
+					<key>FillType</key>
+					<integer>2</integer>
+					<key>GradientAngle</key>
+					<real>90</real>
+					<key>GradientColor</key>
+					<dict>
+						<key>w</key>
+						<string>0.666667</string>
+					</dict>
+				</dict>
+				<key>stroke</key>
+				<dict>
+					<key>CornerRadius</key>
+					<real>5</real>
+				</dict>
+			</dict>
+			<key>Text</key>
+			<dict>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf340
+\cocoascreenfonts1{\fonttbl\f0\fmodern\fcharset0 Courier;}
+{\colortbl;\red255\green255\blue255;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\pardirnatural\qc
+
+\f0\fs24 \cf0 TransactionTestCase}</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{54, 459}, {162, 27}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>ID</key>
+			<integer>7</integer>
+			<key>Magnets</key>
+			<array>
+				<string>{0, 1}</string>
+				<string>{0, -1}</string>
+				<string>{1, 0}</string>
+				<string>{-1, 0}</string>
+			</array>
+			<key>Shape</key>
+			<string>Rectangle</string>
+			<key>Style</key>
+			<dict>
+				<key>fill</key>
+				<dict>
+					<key>FillType</key>
+					<integer>2</integer>
+					<key>GradientAngle</key>
+					<real>90</real>
+					<key>GradientColor</key>
+					<dict>
+						<key>w</key>
+						<string>0.666667</string>
+					</dict>
+				</dict>
+				<key>stroke</key>
+				<dict>
+					<key>CornerRadius</key>
+					<real>5</real>
+				</dict>
+			</dict>
+			<key>Text</key>
+			<dict>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf340
+\cocoascreenfonts1{\fonttbl\f0\fmodern\fcharset0 Courier;}
+{\colortbl;\red255\green255\blue255;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\pardirnatural\qc
+
+\f0\fs24 \cf0 TestCase}</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{288, 459}, {162, 27}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>ID</key>
+			<integer>6</integer>
+			<key>Magnets</key>
+			<array>
+				<string>{0, 1}</string>
+				<string>{0, -1}</string>
+				<string>{1, 0}</string>
+				<string>{-1, 0}</string>
+			</array>
+			<key>Shape</key>
+			<string>Rectangle</string>
+			<key>Style</key>
+			<dict>
+				<key>fill</key>
+				<dict>
+					<key>FillType</key>
+					<integer>2</integer>
+					<key>GradientAngle</key>
+					<real>90</real>
+					<key>GradientColor</key>
+					<dict>
+						<key>w</key>
+						<string>0.666667</string>
+					</dict>
+				</dict>
+				<key>stroke</key>
+				<dict>
+					<key>CornerRadius</key>
+					<real>5</real>
+				</dict>
+			</dict>
+			<key>Text</key>
+			<dict>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf340
+\cocoascreenfonts1{\fonttbl\f0\fmodern\fcharset0 Courier;}
+{\colortbl;\red255\green255\blue255;}
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+
+\f0\fs24 \cf0 LiveServerTestCase}</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{18, 297}, {468, 207}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>ID</key>
+			<integer>13</integer>
+			<key>Shape</key>
+			<string>Rectangle</string>
+			<key>Style</key>
+			<dict/>
+			<key>Text</key>
+			<dict>
+				<key>Align</key>
+				<integer>2</integer>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf340
+\cocoascreenfonts1{\fonttbl\f0\fmodern\fcharset0 Courier;}
+{\colortbl;\red255\green255\blue255;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\pardirnatural\qr
+
+\f0\fs24 \cf0 django.test}</string>
+			</dict>
+			<key>TextPlacement</key>
+			<integer>0</integer>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{18, 153}, {225, 90}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>ID</key>
+			<integer>18</integer>
+			<key>Shape</key>
+			<string>Rectangle</string>
+			<key>Style</key>
+			<dict/>
+			<key>Text</key>
+			<dict>
+				<key>Align</key>
+				<integer>2</integer>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf340
+\cocoascreenfonts1{\fonttbl\f0\fmodern\fcharset0 Courier;}
+{\colortbl;\red255\green255\blue255;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\pardirnatural\qr
+
+\f0\fs24 \cf0 django.utils.unittest\
+= unittest (standard library)}</string>
+			</dict>
+			<key>TextPlacement</key>
+			<integer>0</integer>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{261, 153}, {225, 90}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>ID</key>
+			<integer>19</integer>
+			<key>Shape</key>
+			<string>Rectangle</string>
+			<key>Style</key>
+			<dict/>
+			<key>Text</key>
+			<dict>
+				<key>Align</key>
+				<integer>2</integer>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf340
+\cocoascreenfonts1{\fonttbl\f0\fmodern\fcharset0 Courier;}
+{\colortbl;\red255\green255\blue255;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\pardirnatural\qr
+
+\f0\fs24 \cf0 django.utils.unittest\
+= unittest2 (bundled copy)}</string>
+			</dict>
+			<key>TextPlacement</key>
+			<integer>0</integer>
+		</dict>
+	</array>
+	<key>GridInfo</key>
+	<dict>
+		<key>ShowsGrid</key>
+		<string>YES</string>
+		<key>SnapsToGrid</key>
+		<string>YES</string>
+	</dict>
+	<key>GuidesLocked</key>
+	<string>NO</string>
+	<key>GuidesVisible</key>
+	<string>YES</string>
+	<key>HPages</key>
+	<integer>1</integer>
+	<key>ImageCounter</key>
+	<integer>1</integer>
+	<key>KeepToScale</key>
+	<false/>
+	<key>Layers</key>
+	<array>
+		<dict>
+			<key>Lock</key>
+			<string>NO</string>
+			<key>Name</key>
+			<string>Calque 1</string>
+			<key>Print</key>
+			<string>YES</string>
+			<key>View</key>
+			<string>YES</string>
+		</dict>
+	</array>
+	<key>LayoutInfo</key>
+	<dict>
+		<key>Animate</key>
+		<string>NO</string>
+		<key>circoMinDist</key>
+		<real>18</real>
+		<key>circoSeparation</key>
+		<real>0.0</real>
+		<key>layoutEngine</key>
+		<string>dot</string>
+		<key>neatoSeparation</key>
+		<real>0.0</real>
+		<key>twopiSeparation</key>
+		<real>0.0</real>
+	</dict>
+	<key>LinksVisible</key>
+	<string>NO</string>
+	<key>MagnetsVisible</key>
+	<string>NO</string>
+	<key>MasterSheets</key>
+	<array/>
+	<key>ModificationDate</key>
+	<string>2012-12-16 19:08:28 +0000</string>
+	<key>Modifier</key>
+	<string>Aymeric Augustin</string>
+	<key>NotesVisible</key>
+	<string>NO</string>
+	<key>Orientation</key>
+	<integer>2</integer>
+	<key>OriginVisible</key>
+	<string>NO</string>
+	<key>PageBreaks</key>
+	<string>YES</string>
+	<key>PrintInfo</key>
+	<dict>
+		<key>NSBottomMargin</key>
+		<array>
+			<string>float</string>
+			<string>41</string>
+		</array>
+		<key>NSHorizonalPagination</key>
+		<array>
+			<string>coded</string>
+			<string>BAtzdHJlYW10eXBlZIHoA4QBQISEhAhOU051bWJlcgCEhAdOU1ZhbHVlAISECE5TT2JqZWN0AIWEASqEhAFxlwCG</string>
+		</array>
+		<key>NSLeftMargin</key>
+		<array>
+			<string>float</string>
+			<string>18</string>
+		</array>
+		<key>NSPaperSize</key>
+		<array>
+			<string>size</string>
+			<string>{595.28997802734375, 841.8900146484375}</string>
+		</array>
+		<key>NSPrintReverseOrientation</key>
+		<array>
+			<string>int</string>
+			<string>0</string>
+		</array>
+		<key>NSRightMargin</key>
+		<array>
+			<string>float</string>
+			<string>18</string>
+		</array>
+		<key>NSTopMargin</key>
+		<array>
+			<string>float</string>
+			<string>18</string>
+		</array>
+	</dict>
+	<key>PrintOnePage</key>
+	<false/>
+	<key>ReadOnly</key>
+	<string>NO</string>
+	<key>RowAlign</key>
+	<integer>1</integer>
+	<key>RowSpacing</key>
+	<real>36</real>
+	<key>SheetTitle</key>
+	<string>Canevas 1</string>
+	<key>SmartAlignmentGuidesActive</key>
+	<string>YES</string>
+	<key>SmartDistanceGuidesActive</key>
+	<string>YES</string>
+	<key>UniqueID</key>
+	<integer>1</integer>
+	<key>UseEntirePage</key>
+	<false/>
+	<key>VPages</key>
+	<integer>1</integer>
+	<key>WindowInfo</key>
+	<dict>
+		<key>CurrentSheet</key>
+		<integer>0</integer>
+		<key>ExpandedCanvases</key>
+		<array/>
+		<key>Frame</key>
+		<string>{{9, 4}, {694, 874}}</string>
+		<key>ListView</key>
+		<true/>
+		<key>OutlineWidth</key>
+		<integer>142</integer>
+		<key>RightSidebar</key>
+		<false/>
+		<key>ShowRuler</key>
+		<true/>
+		<key>Sidebar</key>
+		<true/>
+		<key>SidebarWidth</key>
+		<integer>120</integer>
+		<key>VisibleRegion</key>
+		<string>{{0, 0}, {559, 735}}</string>
+		<key>Zoom</key>
+		<real>1</real>
+		<key>ZoomValues</key>
+		<array>
+			<array>
+				<string>Canevas 1</string>
+				<real>1</real>
+				<real>1</real>
+			</array>
+		</array>
+	</dict>
+</dict>
+</plist>
diff --git a/docs/topics/_images/django_unittest_classes_hierarchy.pdf b/docs/topics/_images/django_unittest_classes_hierarchy.pdf
new file mode 100644
index 0000000000..cedaba22ac
--- /dev/null
+++ b/docs/topics/_images/django_unittest_classes_hierarchy.pdf
diff --git a/docs/topics/_images/django_unittest_classes_hierarchy.png b/docs/topics/_images/django_unittest_classes_hierarchy.png
deleted file mode 100644
index 5f28b56ed6..0000000000
--- a/docs/topics/_images/django_unittest_classes_hierarchy.png
+++ /dev/null
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new file mode 100644
index 0000000000..0482f044dd
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+++ b/docs/topics/_images/django_unittest_classes_hierarchy.svg
@@ -0,0 +1,3 @@
+<?xml version="1.0"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xl="http://www.w3.org/1999/xlink" version="1.1" viewBox="-2 137 508 391" width="508pt" height="391pt"><metadata xmlns:dc="http://purl.org/dc/elements/1.1/"><dc:date>2012-12-16 19:08Z</dc:date><!-- Produced by OmniGraffle Professional 5.4.2 --></metadata><defs><filter id="Shadow" filterUnits="userSpaceOnUse"><feGaussianBlur in="SourceAlpha" result="blur" stdDeviation="3.488"/><feOffset in="blur" result="offset" dx="0" dy="4"/><feFlood flood-color="black" flood-opacity=".75" result="flood"/><feComposite in="flood" in2="offset" operator="in"/></filter><font-face font-family="Courier" font-size="12" units-per-em="1000" underline-position="-178.22266" underline-thickness="57.617188" slope="0" x-height="462.40234" cap-height="594.72656" ascent="753.90625" descent="-246.09375" font-weight="500"><font-face-src><font-face-name name="Courier"/></font-face-src></font-face><linearGradient x1="0" x2="1" id="Gradient" 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cap-height="717.28516" ascent="770.01953" descent="-229.98047" font-style="italic" font-weight="500"><font-face-src><font-face-name name="Helvetica-Oblique"/></font-face-src></font-face><marker orient="auto" overflow="visible" markerUnits="strokeWidth" id="UMLInheritance_Marker" viewBox="-1 -7 12 14" markerWidth="12" markerHeight="14" color="black"><g><path d="M 9.5999994 0 L 0 -5.5999997 L 0 5.5999997 Z" fill="none" stroke="currentColor" stroke-width="1"/></g></marker></defs><g stroke="none" stroke-opacity="1" stroke-dasharray="none" fill="none" fill-opacity="1"><title>Canevas 1</title><rect fill="white" width="559.28998" height="782.89"/><g><title>Calque 1</title><g><use xl:href="#id19_Graphic" filter="url(#Shadow)"/><use xl:href="#id18_Graphic" filter="url(#Shadow)"/><use xl:href="#id13_Graphic" filter="url(#Shadow)"/><use xl:href="#id6_Graphic" filter="url(#Shadow)"/><use xl:href="#id7_Graphic" filter="url(#Shadow)"/><use xl:href="#id8_Graphic" filter="url(#Shadow)"/><use 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diff --git a/docs/topics/http/middleware.txt b/docs/topics/http/middleware.txt
index 52f0e8582d..18243c77ce 100644
--- a/docs/topics/http/middleware.txt
+++ b/docs/topics/http/middleware.txt
@@ -65,8 +65,8 @@ reverse order, from the bottom up. Three hooks are available:
 
 .. image:: _images/middleware.*
    :alt: middleware application order
-   :width: 480
-   :height: 408
+   :width: 481
+   :height: 409
 
 If you prefer, you can also think of it like an onion: each middleware class
 is a "layer" that wraps the view.
diff --git a/docs/topics/testing.txt b/docs/topics/testing.txt
index a52e4fe169..8c11e32a55 100644
--- a/docs/topics/testing.txt
+++ b/docs/topics/testing.txt
@@ -1186,10 +1186,13 @@ Normal Python unit test classes extend a base class of
 
 .. _testcase_hierarchy_diagram:
 
-.. figure:: _images/django_unittest_classes_hierarchy.png
+.. figure:: _images/django_unittest_classes_hierarchy.*
    :alt: Hierarchy of Django unit testing classes (TestCase subclasses)
+   :width: 508
+   :height: 391
 
-   Hierarchy of Django unit testing classes
+Regardless of the version of Python you're using, if you've installed
+:mod:`unittest2`, :mod:`django.utils.unittest` will point to that library.
 
 TestCase
 ^^^^^^^^