mirror of
https://github.com/jbranchaud/til
synced 2026-01-03 15:18:01 +00:00
20 lines
853 B
Markdown
20 lines
853 B
Markdown
# Truncate Almost All Tables
|
|
|
|
The
|
|
[`database_cleaner`](https://github.com/DatabaseCleaner/database_cleaner)
|
|
gem is a handy way to make sure you have a consistent database context for
|
|
each test example or suite. One `database_cleaner` strategy that can be used
|
|
is the `truncation` strategy. This truncates the data from all the tables by
|
|
default. This is not ideal for *fixed* tables that contain domain-specific
|
|
data because you end up having to do way more test setup than should be
|
|
necessary. Fortunately, specific tables can be excepted by the truncation
|
|
strategy using the `except` option.
|
|
|
|
For instance, if we have a standard set of roles for users of our
|
|
application, we can except that table from truncation with a line like the
|
|
following in our `rails_helper.rb` file:
|
|
|
|
```ruby
|
|
DatabaseCleaner.strategy = :truncation, {:except => %w[roles]}
|
|
```
|