The constant tested is defined in an initializer, and these are not
loaded when using fast_spec_helper. When running just this test file, or
when running this test first this can lead to test failures. To fix this
we just use spec_helper instead of fast_spec_helper.

- Add mail interceptor the signs outgoing email with SMIME
- Add lib and helpers to work with SMIME data
- New configuration params for setting up SMIME key and cert files

Adds frozen string to the following:

* spec/bin/**/*.rb
* spec/config/**/*.rb
* spec/controllers/**/*.rb

xref https://gitlab.com/gitlab-org/gitlab-ce/issues/59758

Thong Kuah authored 5 years ago and James Lopez committed 5 years ago

- rewords examples starting with 'should'
- rewords examples starting with 'it'

Note: I had to manually fixup "onlies" to "only"

This change adds `note` to the Rails `filter_parameters` configuration.

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Some codestyle changes

This reverts commit 3e991230.

# Conflicts:
#	app/models/project.rb

This reports uses of `File.exists?` and `Dir.exists?`, which were both
deprecated in Ruby and will eventually be removed in favor of
`.exist?`. Also fixes all existing uses of the deprecated methods.

Fixes #12731