sinon
We provide the most widely used stubbing library for JavaScript with ~3M weekly downloads

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sandbox.mock(developers).expects('quality').atLeast(Infinity);

Budget
Transparent and open finances.
GitHub Sponsors payment February
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Total raised
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Estimated annual budget
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News from sinon
Updates on our activities and progress.
Fundraiser: Better Sinon documentation
@sinonjs/referee-sinon v5.0.0 released
Sinon 7.2.0 and Referee 3.0.0 released
