require 'spec_helper' require 'bigdecimal' module Arel describe "Attributes::Integer" do before :all do @relation = Model.build do |r| r.engine Testing::Engine.new r.attribute :age, Attributes::Integer end end def type_cast(val) @relation[:age].type_cast(val) end describe "#type_cast" do it "returns same value if an integer" do type_cast(24).should eql(24) end it "returns nil if passed nil" do type_cast(nil).should be_nil end it "returns nil if passed empty string" do type_cast('').should be_nil end it "returns integer representation of a zero string integer" do type_cast('0').should eql(0) end it "returns integer representation of a positive string integer" do type_cast('24').should eql(24) end it "returns integer representation of a positive string integer with spaces" do type_cast(' 24').should eql(24) type_cast('24 ').should eql(24) end it "returns integer representation of a negative string integer" do type_cast('-24').should eql(-24) end it "returns integer representation of a negative string integer with spaces" do type_cast('-24 ').should eql(-24) type_cast(' -24').should eql(-24) end it "returns integer representation of a zero string float" do type_cast('0.0').should eql(0) end it "returns integer representation of a positive string float" do type_cast('24.35').should eql(24) end it "returns integer representation of a positive string float with spaces" do type_cast(' 24.35').should eql(24) type_cast('24.35 ').should eql(24) end it "returns integer representation of a negative string float" do type_cast('-24.35').should eql(-24) end it "returns integer representation of a negative string float with spaces" do type_cast(' -24.35 ').should eql(-24) end it "returns integer representation of a zero string float, with no leading digits" do type_cast('.0').should eql(0) end it "returns integer representation of a zero string float, with no leading digits with spaces" do type_cast(' .0').should eql(0) end it "returns integer representation of a positive string float, with no leading digits" do type_cast('.41').should eql(0) end it "returns integer representation of a zero float" do type_cast(0.0).should eql(0) end it "returns integer representation of a positive float" do type_cast(24.35).should eql(24) end it "returns integer representation of a negative float" do type_cast(-24.35).should eql(-24) end it "returns integer representation of a zero decimal" do type_cast(BigDecimal('0.0')).should eql(0) end it "returns integer representation of a positive decimal" do type_cast(BigDecimal('24.35')).should eql(24) end it "returns integer representation of a negative decimal" do type_cast(BigDecimal('-24.35')).should eql(-24) end [ Object.new, true, '00.0', '0.', 'string' ].each do |value| it "raises exception when attempting type_cast of non-numeric value #{value.inspect}" do lambda do type_cast(value) end.should raise_error(TypecastError, /could not typecast/) end end end end end