TestID
is an option to TestCreate, VerificationTest and IntermediateTest that specifies a string used as an identifier for the test.
Examples
Basic Examples (5)Summary of the most common use cases
Assign a TestID:

https://wolfram.com/xid/0bdpcf8m8-brp3na


https://wolfram.com/xid/0bdpcf8m8-z1f7bp
Use "TestID" to extract the original value of the option:

https://wolfram.com/xid/0bdpcf8m8-gd68qc

A TestID can be any expression:

https://wolfram.com/xid/0bdpcf8m8-7ioegy

By default, the TestID will be a Hash of the test:

https://wolfram.com/xid/0bdpcf8m8-f63lqb

The TestID will change if the input of the TestCreate expression is different:

https://wolfram.com/xid/0bdpcf8m8-j9n9eu

Use CreateUUID to create random identifiers every time:

https://wolfram.com/xid/0bdpcf8m8-w8zbvk

Wolfram Research (2014), TestID, Wolfram Language function, https://reference.wolfram.com/language/ref/TestID.html.
Text
Wolfram Research (2014), TestID, Wolfram Language function, https://reference.wolfram.com/language/ref/TestID.html.
Wolfram Research (2014), TestID, Wolfram Language function, https://reference.wolfram.com/language/ref/TestID.html.
CMS
Wolfram Language. 2014. "TestID." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/TestID.html.
Wolfram Language. 2014. "TestID." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/TestID.html.
APA
Wolfram Language. (2014). TestID. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/TestID.html
Wolfram Language. (2014). TestID. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/TestID.html
BibTeX
@misc{reference.wolfram_2025_testid, author="Wolfram Research", title="{TestID}", year="2014", howpublished="\url{https://reference.wolfram.com/language/ref/TestID.html}", note=[Accessed: 19-June-2025
]}
BibLaTeX
@online{reference.wolfram_2025_testid, organization={Wolfram Research}, title={TestID}, year={2014}, url={https://reference.wolfram.com/language/ref/TestID.html}, note=[Accessed: 19-June-2025
]}