Hi All,
I'm working on a project that involves producing visual diffs of XML files. A
major requirement is that elements should be able to be re-ordered but will not
display as different unless they are logically different. I thought that
XMLUnit's Diff class would accomplish this using the similar() function, and
built my application accordingly. However, when I tested this, I found that
reordered elements were instead being identified as non-recoverable TEXT_VALUE
differences.
For example, I have two blocks of XML:
<application-variable>
<name>database</name>
<protected>false</protected>
<value>SupportTracker</value>
</application-variable>
<application-variable>
<name>conserver</name>
<protected>false</protected>
<value>jonathanf-vm</value>
</application-variable>
and
<application-variable>
<name>conserver</name>
<protected>false</protected>
<value>jonathanf-vm</value>
</application-variable>
<application-variable>
<name>database</name>
<protected>false</protected>
<value>SupportTracker</value>
</application-variable>
These are logically equivalent (similar). However, when I compare these, I get:
Expected text value 'conserver' but was 'database' - comparing conserver at
/concerto[1]/application[1]/application-variable[1]/name[1]/text()[1] to
database at
/concerto[1]/application[1]/application-variable[1]/name[1]/text()[1]
Expected text value 'jonathanf-vm' but was 'SupportTracker' - comparing
jonathanf-vm at
/concerto[1]/application[1]/application-variable[1]/value[1]/text()[1] to
SupportTracker at
/concerto[1]/application[1]/application-variable[1]/value[1]/text()[1]
Expected text value 'database' but was 'conserver' - comparing database at
/concerto[1]/application[1]/application-variable[2]/name[1]/text()[1] to
conserver at
/concerto[1]/application[1]/application-variable[2]/name[1]/text()[1]
Expected text value 'SupportTracker' but was 'jonathanf-vm' - comparing
SupportTracker at
/concerto[1]/application[1]/application-variable[2]/value[1]/text()[1] to
jonathanf-vm at
/concerto[1]/application[1]/application-variable[2]/value[1]/text()[1]
Is there a way of comparing XML files such that these logical similarities are
preserved? Am I just not setting a configuration option? Any advice would be
much appreciated.
Yours Sincerely,
Jonathan Foulkes
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