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require 'spec_helper'
require 'tempfile'
include Feature::Repository
describe Feature::Repository::YamlRepository do
context 'proper config file' do
before(:each) do
@filename = Tempfile.new(['feature_config', '.yaml']).path
fp = File.new(@filename, 'w')
fp.write <<"EOF"
features:
feature_a_active: true
feature_b_active: true
feature_c_inactive: false
feature_d_inactive: false
EOF
fp.close
@repo = YamlRepository.new(@filename)
end
after(:each) do
File.delete(@filename)
end
it 'should read active features from a config file' do
expect(@repo.active_features).to eq([:feature_a_active, :feature_b_active])
end
context 're-read config file' do
before(:each) do
fp = File.new(@filename, 'w')
fp.write <<"EOF"
features:
feature_a_active: true
feature_c_inactive: false
EOF
fp.close
end
it 'should read active features new on each request' do
expect(@repo.active_features).to eq([:feature_a_active])
end
end
context 'with no features' do
before(:each) do
fp = File.new(@filename, 'w')
fp.write <<"EOF"
features:
EOF
fp.close
end
it 'should read active features new on each request' do
expect(@repo.active_features).to eq([])
end
end
context 'with optional environment name' do
before(:each) do
fp = File.new(@filename, 'w')
fp.write <<"EOF"
development:
features:
feature_a: true
feature_b: true
production:
features:
feature_a: true
feature_b: false
EOF
fp.close
end
it 'has two active features for development environment' do
repo = YamlRepository.new(@filename, 'development')
expect(repo.active_features).to eq([:feature_a, :feature_b])
end
it 'has one active feature for production environment' do
repo = YamlRepository.new(@filename, 'production')
expect(repo.active_features).to eq([:feature_a])
end
end
# Sometimes needed when loading features from ENV variables or are time
# based rules Ex: Date.today > Date.strptime('1/2/2012', '%d/%m/%Y')
context 'a config file with embedded erb' do
before(:each) do
@filename = Tempfile.new(['feature_config', '.yaml']).path
fp = File.new(@filename, 'w')
fp.write <<"EOF"
features:
feature_a_active: <%= 'true' == 'true' %>
feature_b_active: true
feature_c_inactive: <%= false %>
feature_d_inactive: <%= 1 < 0 %>
EOF
fp.close
@repo = YamlRepository.new(@filename)
end
it 'should read active features from the config file' do
expect(@repo.active_features).to eq([:feature_a_active, :feature_b_active])
end
end
end
it 'should raise exception on no file found' do
repo = YamlRepository.new('/this/file/should/not/exist')
expect do
repo.active_features
end.to raise_error(Errno::ENOENT, /No such file or directory/)
end
it 'should raise exception on invalid yaml' do
@filename = Tempfile.new(['feature_config', '.yaml']).path
fp = File.new(@filename, 'w')
fp.write 'this is not valid feature config'
fp.close
repo = YamlRepository.new(@filename)
expect do
repo.active_features
end.to raise_error(ArgumentError, 'yaml config does not contain proper config')
end
it 'should raise exception on yaml without features key' do
@filename = Tempfile.new(['feature_config', '.yaml']).path
fp = File.new(@filename, 'w')
fp.write <<"EOF"
fail:
feature: true
EOF
fp.close
repo = YamlRepository.new(@filename)
expect do
repo.active_features
end.to raise_error(ArgumentError, 'yaml config does not contain proper config')
end
it 'should raise exception on not true/false value in config' do
@filename = Tempfile.new(['feature_config', '.yaml']).path
fp = File.new(@filename, 'w')
fp.write <<"EOF"
features:
invalid_feature: neither_true_or_false
EOF
fp.close
repo = YamlRepository.new(@filename)
expect do
repo.active_features
end.to raise_error(ArgumentError, 'neither_true_or_false is not allowed value in config, use true/false')
end
end
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