How can I select 2 materials to compare out of the set of many materials?
Well, it is very difficult to explain. Possibly the current design is not as good as it should be. I wonder if I could describe it in English, but let me try.
The following file records the metadata of files taken out of the “Production environment”:
store/MyAdmin_Main_Twins/20221016_084837/index :
4419c44062177d8cb12a839169bc63b53cba003b html {"profile":"MyAdmin_ProductionEnv", "URL.host":"myadmin.kazurayam.com", "URL.path":"/", "URL.port":"80", "URL.protocol":"http"}
1f2f0176d802db36521219ce281432dc0e67d920 png {"profile":"MyAdmin_ProductionEnv", "URL.host":"myadmin.kazurayam.com", "URL.path":"/", "URL.port":"80", "URL.protocol":"http"}
Another file records the metadata of files taken out of the “Development environment”:
store/MyAdmin_Main_Twins/20221016_084837/index :
b95fe452b63a6a9b5d5c4329ffaab6945e414943 html {"profile":"MyAdmin_DevelopmentEnv", "URL.host":"devadmin.kazurayam.com", "URL.path":"/", "URL.port":"80", "URL.protocol":"http"}
b59bdac875b80dc47fe3345b4dbe8968db48188d png {"profile":"MyAdmin_DevelopmentEnv", "URL.host":"devadmin.kazurayam.com", "URL.path":"/", "URL.port":"80", "URL.protocol":"http"}
If you look at these 2 files carefully, you can identify 2 pairs of lines by common portion in the metadata.
One pair can be identified by:
html { ... "URL.path":"/" ... }
Another pair can be identified by:
png { ... "URL.path":"/" ... }
Here we will abstract several attributes with different values: "URL.host" and "profile".
The Test Case script can select 2 lines as a pair amongst others by looking at their metadata. I would ignore the known different portions in the metadata resulting a common portion. Taking the common portion as a key of lookup, I could find a pair or materials to compare.
Difficult to understand? Well, I agree. But this is the best flexible and expressive method I could develop.