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Versions: 52
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Contents
require File.expand_path('../../spec_helper', __FILE__)
describe "The not keyword" do
it "negates a `true' value" do
(not true).should be_false
(not 'true').should be_false
end
it "negates a `false' value" do
(not false).should be_true
(not nil).should be_true
end
it "accepts an argument" do
lambda do
not(true)
end.should_not raise_error(SyntaxError)
end
it "returns false if the argument is true" do
(not(true)).should be_false
end
it "returns true if the argument is false" do
(not(false)).should be_true
end
it "returns true if the argument is nil" do
(not(false)).should be_true
end
end
language_version __FILE__, "not"
describe "The `!' keyword" do
it "negates a `true' value" do
(!true).should be_false
(!'true').should be_false
end
it "negates a `false' value" do
(!false).should be_true
(!nil).should be_true
end
it "turns a truthful object into `true'" do
(!!true).should be_true
(!!'true').should be_true
end
it "turns a not truthful object into `false'" do
(!!false).should be_false
(!!nil).should be_false
end
end
Version data entries
52 entries across 52 versions & 2 rubygems