1 files changed, 97 insertions, 0 deletions
diff --git a/spec/unit/functions/inline_epp_spec.rb b/spec/unit/functions/inline_epp_spec.rb
new file mode 100644
index 000000000..36328c2dc
--- /dev/null
+++ b/spec/unit/functions/inline_epp_spec.rb
@@ -0,0 +1,97 @@
+
+require 'spec_helper'
+
+describe "the inline_epp function" do
+  include PuppetSpec::Files
+
+  before :all do
+    Puppet::Parser::Functions.autoloader.loadall
+  end
+
+  before :each do
+    Puppet[:parser] = 'future'
+  end
+
+  let :node     do Puppet::Node.new('localhost') end
+  let :compiler do Puppet::Parser::Compiler.new(node) end
+  let :scope    do Puppet::Parser::Scope.new(compiler) end
+
+  context "when accessing scope variables as $ variables" do
+    it "looks up the value from the scope" do
+      scope["what"] = "are belong"
+      eval_template("all your base <%= $what %> to us").should == "all your base are belong to us"
+    end
+
+    it "get nil accessing a variable that does not exist" do
+      eval_template("<%= $kryptonite == undef %>").should == "true"
+    end
+
+    it "get nil accessing a variable that is undef" do
+      scope['undef_var'] = :undef
+      eval_template("<%= $undef_var == undef %>").should == "true"
+    end
+
+    it "gets shadowed variable if args are given" do
+      scope['phantom'] = 'of the opera'
+      eval_template_with_args("<%= $phantom == dragos %>", 'phantom' => 'dragos').should == "true"
+    end
+
+    it "gets shadowed variable if args are given and parameters are specified" do
+      scope['x'] = 'wrong one'
+      eval_template_with_args("<%-| $x |-%><%= $x == correct %>", 'x' => 'correct').should == "true"
+    end
+
+    it "raises an error if required variable is not given" do
+      scope['x'] = 'wrong one'
+      expect {
+        eval_template_with_args("<%-| $x |-%><%= $x == correct %>", 'y' => 'correct')
+      }.to raise_error(/no value given for required parameters x/)
+    end
+
+    it "raises an error if too many arguments are given" do
+      scope['x'] = 'wrong one'
+      expect {
+        eval_template_with_args("<%-| $x |-%><%= $x == correct %>", 'x' => 'correct', 'y' => 'surplus')
+      }.to raise_error(/Too many arguments: 2 for 1/)
+    end
+  end
+
+  context "when given an empty template" do
+     it "allows the template file to be empty" do
+       expect(eval_template("")).to eq("")
+     end
+
+    it "allows the template to have empty body after parameters" do
+      expect(eval_template_with_args("<%-|$x|%>", 'x'=>1)).to eq("")
+    end
+  end
+
+  it "renders a block expression" do
+    eval_template_with_args("<%= { $y = $x $x + 1} %>", 'x' => 2).should == "3"
+  end
+
+  # although never a problem with epp
+  it "is not interfered with by having a variable named 'string' (#14093)" do
+    scope['string'] = "this output should not be seen"
+    eval_template("some text that is static").should == "some text that is static"
+  end
+
+  it "has access to a variable named 'string' (#14093)" do
+    scope['string'] = "the string value"
+    eval_template("string was: <%= $string %>").should == "string was: the string value"
+  end
+
+
+  def eval_template_with_args(content, args_hash)
+    epp_function.call(scope, content, args_hash)
+  end
+
+  def eval_template(content)
+    epp_function.call(scope, content)
+  end
+
+  def epp_function()
+    epp_func = scope.compiler.loaders.public_environment_loader.load(:function, 'inline_epp')
+  end
+
+end