Doppelganger

Library for mocking smart contract dependencies during unit testing.
What the Doppelgänger is? doppelgänger /ˈdɒp(ə)lˌɡaŋə, ˈdɒp(ə)lˌɡɛŋə/ - an apparition or double of a living person. It’s a library for mocking smart contract dependencies during unit testing. Reduce the amount of code. Test are more readable. Tests run faster. 10 minutes to learn.
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  • Dev tools
  • Testing
  • Smart Contract
  • Security

Tenderly

Start monitoring your contracts with error tracking, detailed contract analytics and smart alerts that notify you when something happens.
Error tracking Track and fix errors as they happen. Error Tracking, track every reverted transaction and easily pinpoint issue in real-time. Full stack traces See the full execution of your contracts. Tenderly enables your blockchain development with stack traces, showing you the source code right
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