* fix DiffKVStores(), store/types gets 100% coverage
DiffKVStores() used to return duplicated entries
in some cases.
Add test cases, aiming to reach 100% coverage for
store package.
Remove duplicate Cp function from the store package.
Same functionality is provided by types.CopyBytes().
* More test cases
Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>
* types: Switch table driven test error messages to new format
Make table driven tests in /types follow the format described in #1664
* typos / lower case errors
* lower case, not sentences
* lower case, not sentences
- call MustSortJSON before return JSON bytes to guarantee alphabetic
ordering
- moved SortJSON and MustSortJSON to types package to avoid cyclic
package dep