cockroachdb / cockroachdb/cockroach
testutils: not currently possible to make metamorphic "constants" vary across tests
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A-testeng-foundations
A-testing
C-bug
T-testeng
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- Go
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Description
**Describe the problem**
The metamorphic constant framework has two shortcomings:
- it assumes that metamorphic constants are initialized in the global scope and so all definitions are available at `init` time
- it prints out the constant customizations in a format that interferes with our logging system.
As a result, it is difficult to use the framework for a value that should be different in every test in a package.
**Expected behavior**
We should be able to use the functions to construct metamorphic constants after a test has started running already.
The printouts should be compatible with the logging system.
(Found while working on #89170)
Jira issue: CRDB-29667
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