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require 'spec_helper'
describe Gitlab::Git::Env do
describe "#set" do
context 'with RequestStore.store disabled' do
before do
allow(RequestStore).to receive(:active?).and_return(false)
end
it 'does not store anything' do
described_class.set(GIT_OBJECT_DIRECTORY: 'foo')
expect(described_class.all).to be_empty
end
end
context 'with RequestStore.store enabled' do
before do
allow(RequestStore).to receive(:active?).and_return(true)
end
it 'whitelist some `GIT_*` variables and stores them using RequestStore' do
described_class.set(
GIT_OBJECT_DIRECTORY: 'foo',
GIT_ALTERNATE_OBJECT_DIRECTORIES: 'bar',
GIT_EXEC_PATH: 'baz',
PATH: '~/.bin:/bin')
expect(described_class[:GIT_OBJECT_DIRECTORY]).to eq('foo')
expect(described_class[:GIT_ALTERNATE_OBJECT_DIRECTORIES]).to eq('bar')
expect(described_class[:GIT_EXEC_PATH]).to be_nil
expect(described_class[:bar]).to be_nil
end
end
end
describe "#all" do
context 'with RequestStore.store enabled' do
before do
allow(RequestStore).to receive(:active?).and_return(true)
described_class.set(
GIT_OBJECT_DIRECTORY: 'foo',
GIT_ALTERNATE_OBJECT_DIRECTORIES: 'bar')
end
it 'returns an env hash' do
expect(described_class.all).to eq({
'GIT_OBJECT_DIRECTORY' => 'foo',
'GIT_ALTERNATE_OBJECT_DIRECTORIES' => 'bar'
})
end
end
end
describe "#[]" do
context 'with RequestStore.store enabled' do
before do
allow(RequestStore).to receive(:active?).and_return(true)
end
before do
described_class.set(
GIT_OBJECT_DIRECTORY: 'foo',
GIT_ALTERNATE_OBJECT_DIRECTORIES: 'bar')
end
it 'returns a stored value for an existing key' do
expect(described_class[:GIT_OBJECT_DIRECTORY]).to eq('foo')
end
it 'returns nil for an non-existing key' do
expect(described_class[:foo]).to be_nil
end
end
end
describe 'thread-safety' do
context 'with RequestStore.store enabled' do
before do
allow(RequestStore).to receive(:active?).and_return(true)
described_class.set(GIT_OBJECT_DIRECTORY: 'foo')
end
it 'is thread-safe' do
another_thread = Thread.new do
described_class.set(GIT_OBJECT_DIRECTORY: 'bar')
Thread.stop
described_class[:GIT_OBJECT_DIRECTORY]
end
# Ensure another_thread runs first
sleep 0.1 until another_thread.stop?
expect(described_class[:GIT_OBJECT_DIRECTORY]).to eq('foo')
another_thread.run
expect(another_thread.value).to eq('bar')
end
end
end
end
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