Function: lock(address token, uint256 amount)

This function locks a token.

Inputs

• token

  • Control: Fully controlled by the caller.

  • Constraints: Must be registered into this contract and under the active epoch.

  • Impact: Specifies the token to be locked.

• amount

  • Control: Fully controlled by the caller.

  • Constraints: None.

  • Impact: Specifies the amount of tokens to be locked.

Branches and code coverage

Intended branches

• Increase the locked amount of the user.

  Test coverage

• Transfer the tokens from the user.

  Test coverage

Negative behavior

• Contract is not paused.

  Negative test

• The given token is registered to support.

  Negative test

• The given token has an active epoch.

  Negative test