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require 'spec_helper'
require 'mspec/guards'
describe FeatureGuard, ".enabled?" do
it "returns true if the feature is enabled" do
MSpec.should_receive(:feature_enabled?).with(:encoding).and_return(true)
FeatureGuard.enabled?(:encoding).should be_true
end
it "returns false if the feature is not enabled" do
MSpec.should_receive(:feature_enabled?).with(:encoding).and_return(false)
FeatureGuard.enabled?(:encoding).should be_false
end
it "returns true if all the features are enabled" do
MSpec.should_receive(:feature_enabled?).with(:one).and_return(true)
MSpec.should_receive(:feature_enabled?).with(:two).and_return(true)
FeatureGuard.enabled?(:one, :two).should be_true
end
it "returns false if any of the features are not enabled" do
MSpec.should_receive(:feature_enabled?).with(:one).and_return(true)
MSpec.should_receive(:feature_enabled?).with(:two).and_return(false)
FeatureGuard.enabled?(:one, :two).should be_false
end
end
describe Object, "#with_feature" do
before :each do
ScratchPad.clear
@guard = FeatureGuard.new :encoding
FeatureGuard.stub(:new).and_return(@guard)
end
it "sets the name of the guard to :with_feature" do
with_feature(:encoding) { }
@guard.name.should == :with_feature
end
it "calls #unregister even when an exception is raised in the guard block" do
@guard.should_receive(:match?).and_return(true)
@guard.should_receive(:unregister)
lambda do
with_feature { raise Exception }
end.should raise_error(Exception)
end
end
describe Object, "#with_feature" do
before :each do
ScratchPad.clear
end
it "yields if the feature is enabled" do
MSpec.should_receive(:feature_enabled?).with(:encoding).and_return(true)
with_feature(:encoding) { ScratchPad.record :yield }
ScratchPad.recorded.should == :yield
end
it "yields if all the features are enabled" do
MSpec.should_receive(:feature_enabled?).with(:one).and_return(true)
MSpec.should_receive(:feature_enabled?).with(:two).and_return(true)
with_feature(:one, :two) { ScratchPad.record :yield }
ScratchPad.recorded.should == :yield
end
it "does not yield if the feature is not enabled" do
MSpec.should_receive(:feature_enabled?).with(:encoding).and_return(false)
with_feature(:encoding) { ScratchPad.record :yield }
ScratchPad.recorded.should be_nil
end
it "does not yield if any of the features are not enabled" do
MSpec.should_receive(:feature_enabled?).with(:one).and_return(true)
MSpec.should_receive(:feature_enabled?).with(:two).and_return(false)
with_feature(:one, :two) { ScratchPad.record :yield }
ScratchPad.recorded.should be_nil
end
end
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