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#! /usr/bin/env ruby -S rspec
require 'spec_helper'
describe "the delete function" do
let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
it "should exist" do
Puppet::Parser::Functions.function("delete").should == "function_delete"
end
it "should raise a ParseError if there are fewer than 2 arguments" do
lambda { scope.function_delete([]) }.should( raise_error(Puppet::ParseError))
end
it "should raise a ParseError if there are greater than 2 arguments" do
lambda { scope.function_delete([[], 'foo', 'bar']) }.should( raise_error(Puppet::ParseError))
end
it "should raise a TypeError if a number is passed as the first argument" do
lambda { scope.function_delete([1, 'bar']) }.should( raise_error(TypeError))
end
it "should delete all instances of an element from an array" do
result = scope.function_delete([['a','b','c','b'],'b'])
result.should(eq(['a','c']))
end
it "should delete all instances of a substring from a string" do
result = scope.function_delete(['foobarbabarz','bar'])
result.should(eq('foobaz'))
end
it "should delete a key from a hash" do
result = scope.function_delete([{ 'a' => 1, 'b' => 2, 'c' => 3 },'b'])
result.should(eq({ 'a' => 1, 'c' => 3 }))
end
it "should not change origin array passed as argument" do
origin_array = ['a','b','c','d']
result = scope.function_delete([origin_array, 'b'])
origin_array.should(eq(['a','b','c','d']))
end
it "should not change the origin string passed as argument" do
origin_string = 'foobarbabarz'
result = scope.function_delete([origin_string,'bar'])
origin_string.should(eq('foobarbabarz'))
end
it "should not change origin hash passed as argument" do
origin_hash = { 'a' => 1, 'b' => 2, 'c' => 3 }
result = scope.function_delete([origin_hash, 'b'])
origin_hash.should(eq({ 'a' => 1, 'b' => 2, 'c' => 3 }))
end
end
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