21940d1edf
This adds a method to Gitlab::GonHelper called
`push_frontend_feature_flag`. This method can be used to easily expose
the state of a feature flag to Javascript code. For example, using this
method we may write the following controller code:
before_action do
push_frontend_feature_flag(:vim_bindings)
end
def index
# ...
end
def edit
# ...
end
In Javascript we can then check the state of the flag as follows:
if ( gon.features.vimBindings ) {
// ...
}
Fixes https://gitlab.com/gitlab-org/release/framework/issues/17
32 lines
677 B
Ruby
32 lines
677 B
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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describe Gitlab::GonHelper do
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let(:helper) do
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Class.new do
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include Gitlab::GonHelper
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end.new
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end
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describe '#push_frontend_feature_flag' do
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it 'pushes a feature flag to the frontend' do
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gon = instance_double('gon')
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allow(helper)
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.to receive(:gon)
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.and_return(gon)
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expect(Feature)
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.to receive(:enabled?)
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.with(:my_feature_flag, 10)
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.and_return(true)
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expect(gon)
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.to receive(:push)
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.with({ features: { 'myFeatureFlag' => true } }, true)
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helper.push_frontend_feature_flag(:my_feature_flag, 10)
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end
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end
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end
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