fiddle with the pixeldiffs on the layout test

Author: hjwp

chapter_08_prettification.asciidoc

@@ -167,8 +167,7 @@ Traceback (most recent call last):
   File "...goat-book/functional_tests/tests.py", line 120, in
 test_layout_and_styling
     self.assertAlmostEqual(
-AssertionError: 103.333... != 512 within 10 delta (408.666...
-difference)
+AssertionError: 102.5 != 512 within 10 delta (409.5 difference)
 
  ---------------------------------------------------------------------
 Ran 3 tests in 9.188s
@@ -226,7 +225,7 @@ That gives us another test failure:
   File "...goat-book/functional_tests/tests.py", line 132, in
 test_layout_and_styling
     self.assertAlmostEqual(
-AssertionError: 103.333... != 512 within 10 delta (408.666...
+AssertionError: 102.5 != 512 within 10 delta (409.5 difference)
 ----
 
 Let's commit just the FT:
@@ -492,7 +491,7 @@ That's a refactor of the way our templates work.
 We rerun the FTs to make sure we haven't broken anything:
 
 ----
-AssertionError: 103.333... != 512 within 10 delta (408.666...
+AssertionError: 102.5 != 512 within 10 delta (409.5 difference)
 ----
 
 Sure enough, they're still getting to exactly where they were before.
@@ -600,7 +599,7 @@ TIP: Take the time to browse through the
 Does that work?
 
 ----
-AssertionError: 103.333... != 512 within 10 delta (408.666...
+AssertionError: 102.5 != 512 within 10 delta (409.5 difference)
 ----
 
 Hmm. No.  Why isn't our CSS loading?
@@ -713,7 +712,7 @@ image::images/prettified-1.png["The list page with centered header."]
 If you run the FT though, annoyingly, it still won't pass:
 
 ----
-AssertionError: 103.333... != 512 within 10 delta (408.666...
+AssertionError: 102.5 != 512 within 10 delta (409.5 difference)
 ----
 
 That's because, although `runserver` automagically finds static files,

chapter_10_production_readiness.asciidoc

@@ -89,7 +89,7 @@ but the test for layout + styling fails. Good job, tests!
 ----
 $ pass:quotes[*TEST_SERVER=localhost:8888 python manage.py test functional_tests*]
 [...]
-AssertionError: 117.0 != 512 within 10 delta
+AssertionError: 102.5 != 512 within 10 delta (409.5 difference)
 FAILED (failures=1)
 ----
 
@@ -375,7 +375,7 @@ in our static files.
 ----
 $ pass:quotes[*TEST_SERVER=localhost:8888 python manage.py test functional_tests*]
 [...]
-AssertionError: 117.0 != 512 within 10 delta
+AssertionError: 102.5 != 512 within 10 delta (409.5 difference)
 FAILED (failures=1)
 ----
 

tests/book_tester.py

@@ -195,8 +195,8 @@ def fix_sqlite_messages(actual_text):
 
 def standardize_layout_test_pixelsize(actual_text):
     return re.sub(
-        r"103.333\d+ != 512 within 10 delta \(408.666\d+",
-        r"103.333... != 512 within 10 delta (408.666...",
+        r"10\d.\d+ != 512 within 10 delta \(40\d.\d+",
+        r"102.5 != 512 within 10 delta (409.5",
         actual_text,
     )