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Add option to skip call to purge_before_load in parallel::load_schema and parallel::load_structure #529

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Add option to skip call to purge_before_load in parallel::load_schema and parallel::load_structure #529

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236d227
Add option to disable call to purge_before_load
Tolsto Oct 7, 2016
22747d4
Disable purge_before_load via env setting
Tolsto Oct 10, 2016
3e316b5
Fix undefined method error
Tolsto Oct 10, 2016
c0d3344
Use fetch for better default handling
Tolsto Oct 11, 2016
da1ece1
Add tests for purge_before_load
Tolsto Oct 11, 2016
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6 changes: 5 additions & 1 deletion lib/parallel_tests/tasks.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,12 @@ def rails_env
ENV['RAILS_ENV'] || 'test'
end

def purge_before_load?
ENV.fetch('PURGE_BEFORE_LOAD', 'TRUE').downcase == 'false' ? false : true
end

def purge_before_load
"db:test:purge" if Gem::Version.new(Rails.version) > Gem::Version.new('4.2.0')
"db:test:purge" if purge_before_load? && Gem::Version.new(Rails.version) > Gem::Version.new('4.2.0')
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@grosser grosser Oct 12, 2016

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cannot use Rails.version since this might be used without rails ... ActiveRecord::Version::STRING should work

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@Tolsto Tolsto Oct 12, 2016

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Why would this be used without Rails? All tasks that call this method depend on Rails' rake tasks

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@grosser grosser Oct 12, 2016

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I always though as this only needing ActiveRecord to work ... tasks come from https://github.com/rails/rails/blob/master/activerecord/lib/active_record/railties/databases.rake ... which is a railtie ... adding rails to the mix seems to still be unnecessary to me ... maybe ActiveRecord.version => #<Gem::Version "5.0.0.1">

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@grosser grosser Oct 12, 2016

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bah ... does not work on rails 3 ... maybe ActiveRecord::VERSION::STRING is best ...

end

def run_in_parallel(cmd, options={})
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36 changes: 36 additions & 0 deletions spec/parallel_tests/tasks_spec.rb
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Expand Up @@ -29,6 +29,42 @@
end
end

describe '.purge_before_load?' do
subject { ParallelTests::Tasks.purge_before_load? }
context "PURGE_BEFORE_LOAD is set to 'false'" do
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@grosser grosser Oct 12, 2016

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FYI I'd test this like so: (less nesting / context switching and 1 change per test)

it "is true" do
  exoect(subject).to eq true
end

it "is false when set to false" do
  with_env(PURGE_BEFORE_LOAD: 'false') do
    expect(subject).to eq false
  end
end

it "is true when set to true" do
  with_env(PURGE_BEFORE_LOAD: 'true') do
    expect(subject).to eq true
  end
end

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@Tolsto Tolsto Oct 12, 2016

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I'll refactor it. However, I prefer to use expect(ENV) to set envs because it will fail if the env doesn't get used anymore because someone changed the code.

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@grosser grosser Oct 12, 2016

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just FYI either way works :)

before { expect(ENV).to receive(:fetch).with('PURGE_BEFORE_LOAD', 'TRUE').and_return('false') }

it 'returns false' do
expect(subject).to be_falsey
end
end

context 'PURGE_BEFORE_LOAD is not set' do

it 'defaults to true' do
expect(subject).to be_truthy
end
end
end

describe '.purge_before_load' do
subject { ParallelTests::Tasks.purge_before_load }
context 'Rails version is 4.3.1' do
before do
class Rails; end
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@grosser grosser Oct 12, 2016

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defining a class at runtime is a bad idea :D

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@Tolsto Tolsto Oct 12, 2016

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How would you stub the call to Rails.version instead?

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@grosser grosser Oct 12, 2016

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define it global ... and then either add it there or stub it ...

allow(Rails).to receive(:version).and_return('4.3.1')
end

context "PURGE_BEFORE_LOAD is set to 'false'" do
before { expect(ENV).to receive(:fetch).with('PURGE_BEFORE_LOAD', 'TRUE').and_return('false') }

it 'returns nil' do
expect(subject).to be_nil
end
end
end
end

describe ".rails_env" do
it "should be test when nothing was set" do
expect(ParallelTests::Tasks.rails_env).to eq("test")
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