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require 'spec_helper'
require 'bigdecimal'
module Arel
describe "Attributes::Float" do
before :all do
@relation = Model.build do |r|
r.engine Testing::Engine.new
r.attribute :percentage, Attributes::Float
end
end
def type_cast(val)
@relation[:percentage].type_cast(val)
end
describe "#type_cast" do
it "returns same value if an float" do
type_cast(24.01).should eql(24.01)
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 float representation of a zero string float" do
type_cast('0').should eql(0.0)
end
it "returns float representation of a positive string integer" do
type_cast('24').should eql(24.0)
end
it "returns float representation of a positive string integer with spaces" do
type_cast(' 24').should eql(24.0)
type_cast('24 ').should eql(24.0)
end
it "returns float representation of a negative string float" do
type_cast('-24.23').should eql(-24.23)
end
it "returns float representation of a negative string integer with spaces" do
type_cast('-24 ').should eql(-24.0)
type_cast(' -24').should eql(-24.0)
end
it "returns integer representation of a zero string float" do
type_cast('0.0').should eql(0.0)
end
it "returns integer representation of a positive string float" do
type_cast('24.35').should eql(24.35)
end
it "returns integer representation of a positive string float with spaces" do
type_cast(' 24.35').should eql(24.35)
type_cast('24.35 ').should eql(24.35)
end
it "returns integer representation of a negative string float" do
type_cast('-24.35').should eql(-24.35)
end
it "returns integer representation of a negative string float with spaces" do
type_cast(' -24.35 ').should eql(-24.35)
end
it "returns integer representation of a zero string float, with no leading digits" do
type_cast('.0').should eql(0.0)
end
it "returns integer representation of a zero string float, with no leading digits with spaces" do
type_cast(' .0').should eql(0.0)
end
it "returns integer representation of a positive string float, with no leading digits" do
type_cast('.41').should eql(0.41)
end
it "returns integer representation of a zero float" do
type_cast(0.0).should eql(0.0)
end
it "returns integer representation of a positive float" do
type_cast(24.35).should eql(24.35)
end
it "returns integer representation of a negative float" do
type_cast(-24.35).should eql(-24.35)
end
it "returns integer representation of a zero decimal" do
type_cast(BigDecimal('0.0')).should eql(0.0)
end
it "returns integer representation of a positive decimal" do
type_cast(BigDecimal('24.35')).should eql(24.35)
end
it "returns integer representation of a negative decimal" do
type_cast(BigDecimal('-24.35')).should eql(-24.35)
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
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