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#! /usr/bin/env ruby
require 'spec_helper'
describe "the fqdn_rand function" do
before :all do
Puppet::Parser::Functions.autoloader.loadall
end
before :each do
@scope = Puppet::Parser::Scope.new
end
it "should exist" do
Puppet::Parser::Functions.function("fqdn_rand").should == "function_fqdn_rand"
end
it "should handle 0 arguments" do
@scope.expects(:lookupvar).with("::fqdn").returns("127.0.0.1")
lambda { @scope.function_fqdn_rand([]) }.should_not raise_error(Puppet::ParseError)
end
it "should handle 1 argument'}" do
@scope.expects(:lookupvar).with("::fqdn").returns("127.0.0.1")
lambda { @scope.function_fqdn_rand([3]) }.should_not raise_error(Puppet::ParseError)
end
(1..10).each { |n|
it "should handle #{n} additional arguments" do
@scope.expects(:lookupvar).with("::fqdn").returns("127.0.0.1")
lambda { @scope.function_fqdn_rand([3,1,2,3,4,5,6,7,8,9,10][0..n]) }.should_not raise_error(Puppet::ParseError)
end
it "should handle #{n} additional string arguments" do
@scope.expects(:lookupvar).with("::fqdn").returns("127.0.0.1")
lambda { @scope.function_fqdn_rand([3,%w{ 1 2 3 4 5 6 7 8 9 10}].flatten[0..n]) }.should_not raise_error(Puppet::ParseError)
end
}
it "should return a value less than max" do
@scope.expects(:lookupvar).with("::fqdn").returns("127.0.0.1")
@scope.function_fqdn_rand([3]).should satisfy {|n| n.to_i < 3 }
end
it "should return the same values on subsequent invocations for the same host" do
@scope.expects(:lookupvar).with("::fqdn").returns("127.0.0.1").twice
@scope.function_fqdn_rand([3,4]).should eql(@scope.function_fqdn_rand([3, 4]))
end
it "should return different sequences of value for different hosts" do
@scope.expects(:lookupvar).with("::fqdn").returns("127.0.0.1")
val1 = @scope.function_fqdn_rand([10000000,4])
@scope.expects(:lookupvar).with("::fqdn").returns("127.0.0.2")
val2 = @scope.function_fqdn_rand([10000000,4])
val1.should_not eql(val2)
end
it "should return different values for the same hosts with different seeds" do
@scope.expects(:lookupvar).with("::fqdn").returns("127.0.0.1")
val1 = @scope.function_fqdn_rand([10000000,4])
@scope.expects(:lookupvar).with("::fqdn").returns("127.0.0.1")
val2 = @scope.function_fqdn_rand([10000000,42])
val1.should_not eql(val2)
end
end
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