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#! /usr/bin/env ruby -S rspec
require 'spec_helper'
describe Puppet::Parser::Functions.function(:deep_merge) do
let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
describe 'when calling deep_merge from puppet' do
it "should not compile when no arguments are passed" do
skip("Fails on 2.6.x, see bug #15912") if Puppet.version =~ /^2\.6\./
Puppet[:code] = '$x = deep_merge()'
expect {
scope.compiler.compile
}.to raise_error(Puppet::ParseError, /wrong number of arguments/)
end
it "should not compile when 1 argument is passed" do
skip("Fails on 2.6.x, see bug #15912") if Puppet.version =~ /^2\.6\./
Puppet[:code] = "$my_hash={'one' => 1}\n$x = deep_merge($my_hash)"
expect {
scope.compiler.compile
}.to raise_error(Puppet::ParseError, /wrong number of arguments/)
end
end
describe 'when calling deep_merge on the scope instance' do
it 'should require all parameters are hashes' do
expect { new_hash = scope.function_deep_merge([{}, '2'])}.to raise_error(Puppet::ParseError, /unexpected argument type String/)
expect { new_hash = scope.function_deep_merge([{}, 2])}.to raise_error(Puppet::ParseError, /unexpected argument type Fixnum/)
end
it 'should accept empty strings as puppet undef' do
expect { new_hash = scope.function_deep_merge([{}, ''])}.not_to raise_error
end
it 'should be able to deep_merge two hashes' do
new_hash = scope.function_deep_merge([{'one' => '1', 'two' => '1'}, {'two' => '2', 'three' => '2'}])
expect(new_hash['one']).to eq('1')
expect(new_hash['two']).to eq('2')
expect(new_hash['three']).to eq('2')
end
it 'should deep_merge multiple hashes' do
hash = scope.function_deep_merge([{'one' => 1}, {'one' => '2'}, {'one' => '3'}])
expect(hash['one']).to eq('3')
end
it 'should accept empty hashes' do
expect(scope.function_deep_merge([{},{},{}])).to eq({})
end
it 'should deep_merge subhashes' do
hash = scope.function_deep_merge([{'one' => 1}, {'two' => 2, 'three' => { 'four' => 4 } }])
expect(hash['one']).to eq(1)
expect(hash['two']).to eq(2)
expect(hash['three']).to eq({ 'four' => 4 })
end
it 'should append to subhashes' do
hash = scope.function_deep_merge([{'one' => { 'two' => 2 } }, { 'one' => { 'three' => 3 } }])
expect(hash['one']).to eq({ 'two' => 2, 'three' => 3 })
end
it 'should append to subhashes 2' do
hash = scope.function_deep_merge([{'one' => 1, 'two' => 2, 'three' => { 'four' => 4 } }, {'two' => 'dos', 'three' => { 'five' => 5 } }])
expect(hash['one']).to eq(1)
expect(hash['two']).to eq('dos')
expect(hash['three']).to eq({ 'four' => 4, 'five' => 5 })
end
it 'should append to subhashes 3' do
hash = scope.function_deep_merge([{ 'key1' => { 'a' => 1, 'b' => 2 }, 'key2' => { 'c' => 3 } }, { 'key1' => { 'b' => 99 } }])
expect(hash['key1']).to eq({ 'a' => 1, 'b' => 99 })
expect(hash['key2']).to eq({ 'c' => 3 })
end
it 'should not change the original hashes' do
hash1 = {'one' => { 'two' => 2 } }
hash2 = { 'one' => { 'three' => 3 } }
hash = scope.function_deep_merge([hash1, hash2])
expect(hash1).to eq({'one' => { 'two' => 2 } })
expect(hash2).to eq({ 'one' => { 'three' => 3 } })
expect(hash['one']).to eq({ 'two' => 2, 'three' => 3 })
end
it 'should not change the original hashes 2' do
hash1 = {'one' => { 'two' => [1,2] } }
hash2 = { 'one' => { 'three' => 3 } }
hash = scope.function_deep_merge([hash1, hash2])
expect(hash1).to eq({'one' => { 'two' => [1,2] } })
expect(hash2).to eq({ 'one' => { 'three' => 3 } })
expect(hash['one']).to eq({ 'two' => [1,2], 'three' => 3 })
end
it 'should not change the original hashes 3' do
hash1 = {'one' => { 'two' => [1,2, {'two' => 2} ] } }
hash2 = { 'one' => { 'three' => 3 } }
hash = scope.function_deep_merge([hash1, hash2])
expect(hash1).to eq({'one' => { 'two' => [1,2, {'two' => 2}] } })
expect(hash2).to eq({ 'one' => { 'three' => 3 } })
expect(hash['one']).to eq({ 'two' => [1,2, {'two' => 2} ], 'three' => 3 })
expect(hash['one']['two']).to eq([1,2, {'two' => 2}])
end
end
end
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