Fix unbounded memory use in tests #5166
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Stubs permanently record the arguments for every call, i.e. they leak memory. Don't use them unless you actually need to inspect the arguments.
anandthakker
approved these changes
Aug 18, 2017
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This was caused by the use of sinon's stubs. Stubs permanently record the arguments for every call, i.e. they leak memory. Don't use them unless you actually need to inspect the arguments or restore the original method.
Fixes #5163 and speeds up the render tests:
before:
after: