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require_relative "spec_helper"
describe "Sequel::Plugins::InputTransformer" do
before do
@c = Class.new(Sequel::Model)
@c.columns :name, :b
@c.plugin(:input_transformer, :reverser){|v| v.is_a?(String) ? v.reverse : v}
@o = @c.new
end
it "should apply transformation to input" do
@o.name = ' name '
@o.name.must_equal ' eman '
@o.name = [1, 2, 3]
@o.name.must_equal [1, 2, 3]
end
it "should have working .input_transformer_order" do
@c.input_transformer_order.must_equal [:reverser]
@c.plugin(:input_transformer, :reverser2){|v| v.is_a?(String) ? v.reverse : v}
@c.input_transformer_order.must_equal [:reverser2, :reverser]
end
it "should not apply any transformers by default" do
c = Class.new(Sequel::Model)
c.columns :name, :b
c.plugin :input_transformer
c.new(:name => ' name ').name.must_equal ' name '
end
it "should allow skipping of columns using .skip_input_transformer" do
@c.skip_input_transformer :reverser, :name
v = ' name '
@o.name = v
@o.name.must_be_same_as(v)
end
it "should work correctly in subclasses" do
o = Class.new(@c).new
o.name = ' name '
o.name.must_equal ' eman '
end
it "should raise an error if adding input filter without name" do
proc{@c.add_input_transformer(nil){}}.must_raise(Sequel::Error)
proc{@c.plugin(:input_transformer){}}.must_raise(Sequel::Error)
end
it "should raise an error if adding input filter without block" do
proc{@c.add_input_transformer(:foo)}.must_raise(Sequel::Error)
proc{@c.plugin(:input_transformer, :foo)}.must_raise(Sequel::Error)
end
it "should apply multiple input transformers in reverse order of their call" do
@c.add_input_transformer(:add_bar){|v| v << 'bar'}
@c.add_input_transformer(:add_foo){|v| v << 'foo'}
@o.name = ' name '.dup
@o.name.must_equal 'raboof eman '
end
it "should freeze input transformers when freezing model class" do
@c.skip_input_transformer :reverser, :name
@c.freeze
@c.input_transformers.frozen?.must_equal true
skip = @c.instance_variable_get(:@skip_input_transformer_columns)
skip.frozen?.must_equal true
skip.values.all?(&:frozen?).must_equal true
end
end
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