Parallel saving specs + renaming resource_version to resource counter

[Ladas]

Specs for ensuring cases for parallel saving using resource_counter and resource_timestamp columns + renaming resource_version to resource counter

[miq-bot]

Some comments on commits https://github.com/Ladas/inventory_refresh/compare/9f1f27733d2343ce68cc61f1bde84d247fc0f272~...e66808c5a1a0b9a6dd599ee9afa3761883cea497

spec/persister/parallel_saving_spec.rb

• [ ] :warning: - 29 - Detected allow_any_instance_of. This RSpec method is highly discouraged, please only use when absolutely necessary.

[miq-bot]

Checked commits https://github.com/Ladas/inventory_refresh/compare/9f1f27733d2343ce68cc61f1bde84d247fc0f272~...e66808c5a1a0b9a6dd599ee9afa3761883cea497 with ruby 2.3.3, rubocop 0.52.1, haml-lint 0.20.0, and yamllint 1.10.0 10 files checked, 5 offenses detected

lib/inventory_refresh/save_collection/saver/concurrent_safe_batch.rb

• [ ] :exclamation: - Line 179, Col 52 - Style/SymbolArray - Use %i or %I for an array of symbols.

lib/inventory_refresh/save_collection/saver/sql_helper_upsert.rb

• [ ] :exclamation: - Line 28, Col 42 - Style/SymbolArray - Use %i or %I for an array of symbols.
• [ ] :exclamation: - Line 86, Col 26 - Style/SymbolArray - Use %i or %I for an array of symbols.

spec/schema.rb

• [ ] :exclamation: - Line 585, Col 39 - Style/HashSyntax - Use hash rockets syntax.
• [ ] :exclamation: - Line 588, Col 37 - Style/HashSyntax - Use hash rockets syntax.