1 files changed, 16 insertions, 0 deletions
diff --git a/spec/unit/pops/parser/parser_spec.rb b/spec/unit/pops/parser/parser_spec.rb
index fb44a08c9..23f537eeb 100644
--- a/spec/unit/pops/parser/parser_spec.rb
+++ b/spec/unit/pops/parser/parser_spec.rb
@@ -14,4 +14,20 @@ describe Puppet::Pops::Parser::Parser do
     model.body.class.should == Puppet::Pops::Model::AssignmentExpression
   end
 
+  it "should accept empty input and return a model" do
+    parser = Puppet::Pops::Parser::Parser.new()
+    model = parser.parse_string("").current
+    model.class.should == Puppet::Pops::Model::Program
+    model.body.class.should == Puppet::Pops::Model::Nop
+  end
+
+  it "should accept empty input containing only comments and report location at end of input" do
+    parser = Puppet::Pops::Parser::Parser.new()
+    model = parser.parse_string("# comment\n").current
+    model.class.should == Puppet::Pops::Model::Program
+    model.body.class.should == Puppet::Pops::Model::Nop
+    adapter = Puppet::Pops::Adapters::SourcePosAdapter.adapt(model.body)
+    expect(adapter.offset).to eq(10)
+    expect(adapter.length).to eq(0)
+  end
 end