1 files changed, 52 insertions, 0 deletions
diff --git a/puppet/modules/stdlib/spec/functions/merge_spec.rb b/puppet/modules/stdlib/spec/functions/merge_spec.rb
new file mode 100755
index 00000000..2abf9762
--- /dev/null
+++ b/puppet/modules/stdlib/spec/functions/merge_spec.rb
@@ -0,0 +1,52 @@
+#! /usr/bin/env ruby -S rspec
+
+require 'spec_helper'
+
+describe Puppet::Parser::Functions.function(:merge) do
+  let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
+
+  describe 'when calling 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] = '$x = merge()'
+      expect {
+        scope.compiler.compile
+      }.to raise_error(Puppet::ParseError, /wrong number of arguments/)
+    end
+
+    it "should not compile when 1 argument is passed" do
+      skip("Fails on 2.6.x, see bug #15912") if Puppet.version =~ /^2\.6\./
+      Puppet[:code] = "$my_hash={'one' => 1}\n$x = merge($my_hash)"
+      expect {
+        scope.compiler.compile
+      }.to raise_error(Puppet::ParseError, /wrong number of arguments/)
+    end
+  end
+
+  describe 'when calling merge on the scope instance' do
+    it 'should require all parameters are hashes' do
+      expect { new_hash = scope.function_merge([{}, '2'])}.to raise_error(Puppet::ParseError, /unexpected argument type String/)
+      expect { new_hash = scope.function_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_merge([{}, ''])}.not_to raise_error
+    end
+
+    it 'should be able to merge two hashes' do
+      new_hash = scope.function_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 merge multiple hashes' do
+      hash = scope.function_merge([{'one' => 1}, {'one' => '2'}, {'one' => '3'}])
+      expect(hash['one']).to eq('3')
+    end
+
+    it 'should accept empty hashes' do
+      expect(scope.function_merge([{},{},{}])).to eq({})
+    end
+  end
+end