ethereum/tests

Storage change tests

chfast opened this issue · 5 comments

chfast commented

In preparation for EIP-1087.

For a single SSTORE of a given key, we have following cases:

  • z: 0 -> 0 (zero),
  • a: 0 -> X (added),
  • d: X -> 0 (deleted),
  • m: X -> Y (modified).
  • u: X -> X (unchanged).

Make sure we have proper tests for all cases (probably yes).

Now let's create a set of test cases where we combine each possibility into sequence of two SSTORES:

  • zz: 0 -> 0 -> 0
  • za: 0 -> 0 -> X
  • ad: 0 -> X -> 0
  • am: 0 -> X -> Y
  • au: 0 -> X -> X
  • dz: X -> 0 -> 0
  • da: X -> 0 -> X
  • da2: X -> 0 -> Y
  • md: X -> Y -> 0
  • mm: X -> Y -> Z
  • mm2: X -> Y -> X
  • mu: X -> Y -> Y
  • ud: X -> X -> 0
  • um: X -> X -> Y
  • uu: X -> X -> X
sorpaas commented

Two additional test cases for reset and set again:

  • ada: 0 -> X -> 0 -> X
  • dad: X -> 0 -> X -> 0
  • 👍2
chfast commented

Can this be closed now?

winsvega commented

No. The cases have not been added to the repo yet.
In fact tests not written yet.