HsacAcceptanceTests.SlimTests.UtilityFixtures.CompareFixtureTest


Compare Fixture helps to visualize the difference between strings.
Showing differences does not actually test anything, it is intended to be used in conjunction with other tests to highlight why two values are not the same.

script compare fixture
show difference between Hello and Hello sir
Hello sir
show difference between Hello madam and Hello
Hello madam
show difference between Hello madam and Hello sir
Hello madamsir
show difference between Hello dear madam and Hello madam
Hello dear madam
show difference between Hello madam and Hello madam
Hello   madam
show difference between and
show difference between and
 
show difference between Bye and
Bye
show difference between Hello sir Greetings to you. and Hello madam Greetings to you.
Hello sir 
 
 
madam  Greetings to you.  
show difference between ha ha and ha ha
ha  ha

To actually test something we can count the number of 'diffs' between two values
script compare fixture
check count differences between Hello and Hello sir 1
check count differences between Hello madam and Hello 1
check count differences between Hello madam and Hello sir 2
check count differences between Hello dear madam and Hello madam 1
check count differences between Hello madam and Hello madam 1



Sometimes changes in whitespace are not interesting, these may be ignored when determining the difference.

Whitespace added were there was none before, or all whitespace removed between characters, is still considered a difference.


script compare fixture
show difference between (ignore whitespace) Hello dear madam and Hello madam
Hello dear madam
show difference between (ignore whitespace) Hello madam and Hello madam
Hello madam
show difference between (ignore whitespace) Hello sir Greetings to you. and Hello madam Greetings to you.
Hello sirmadam Greetings to you.
show difference between (ignore whitespace) ha ha and ha ha
ha ha 

Counting the number of 'diffs' between two values can also ignore whitespace.

script compare fixture
check count differences between (ignore whitespace) Hello and Hello sir 1
check count differences between (ignore whitespace) Hello madam and Hello 1
check count differences between (ignore whitespace) Hello madam and Hello sir 2
check count differences between (ignore whitespace) Hello dear madam and Hello madam 1
check count differences between (ignore whitespace) Hello madam and Hello madam 0

Compare preformatted HTML

script compare fixture
show difference between 
Hello dear madam   Bye
 and 
Hello dear madam Bye
 
Hello dear madam   Bye
show difference between 
Hello dear madam <p>Bye</p>
 and 
Hello dear madam Bye
 
Hello dear madam <p>Bye</p>Bye
show difference between (ignore whitespace) 
Hello dear madam   Bye
 and 
Hello dear madam Bye
 
Hello dear madam   Bye
show difference between (ignore whitespace) 
Hello dear madam <p>Bye</p>
 and 
Hello dear madam Bye
 
Hello dear madam <p>Bye</p>Bye
check count differences between 
Hello dear madam   Bye
 and 
Hello dear madam Bye
 1
check count differences between 
Hello dear madam <p>Bye</p>
 and 
Hello dear madam Bye
 2
check count differences between (ignore whitespace) 
Hello dear madam   Bye
 and 
Hello dear madam Bye
 0
check count differences between (ignore whitespace) 
Hello dear madam <p>Bye</p>
 and 
Hello dear madam Bye
 2

Sometimes whitespace is very interesting and visualizing the various different forms of whitespace is desired.
The compare fixture can make whitespace differences explicit and will use the following symbols to indicate whitespace characters:

whitespace symbol
space ·
non-breaking space •
newline (\n)
carriage return (\r) ↵
tab (\t) →

script compare fixture
show difference between (explicit whitespace) Hello dear madam and Hello madam
Hello dear·madam
show difference between (explicit whitespace) Hello madam and Hello madam
Hello ··madam
show difference between (explicit whitespace) Hello sir Greetings to you. and Hello madam Greetings to you.
Hello sir¶


madam· Greetings to you.
show difference between (explicit whitespace) ha ha and ha ha
ha→·ha→