diff --git a/inform7/Tests/Test Cases/Parser.txt b/inform7/Tests/Test Cases/Parser.txt
new file mode 100644
index 000000000..f0485a89c
--- /dev/null
+++ b/inform7/Tests/Test Cases/Parser.txt	
@@ -0,0 +1,20 @@
+Schloss Parserhof is a room. "Begun by Mad King Ludwig in 1878, this grand foyer was
+projected to be the antechamber to a long series of exotic chambers in which the Austrian
+monarch could have parser antics performed before his eyes. Build on a north-south
+spinal passage, it has been found monotonous by some architectural critics."
+
+[Note that there is no Test me with... here; instead, a separate command script is
+provided for this test case, so that the UNDO command can be used in the course of
+tests. The intention is that each test or set of tests should be in its own room, each
+south of the previous one.]
+
+Section 1 - Discard UNDO Testing
+
+The Discard UNDO Testing Place is a room south of the Schloss.
+
+The bottle is here. The bottle can be broken or unbroken. 
+The description of the bottle is "It's [if the bottle is broken]broken[else]unbroken[end if]."
+
+Instead of attacking the unbroken bottle:
+	say "Smash!";
+	now the bottle is broken.
diff --git a/inform7/Tests/Test Cases/_Command_Scripts/Parser.txt b/inform7/Tests/Test Cases/_Command_Scripts/Parser.txt
new file mode 100644
index 000000000..54d442b6a
--- /dev/null
+++ b/inform7/Tests/Test Cases/_Command_Scripts/Parser.txt	
@@ -0,0 +1,5 @@
+s
+break bottle
+und
+undo
+examine bottle
diff --git a/inform7/Tests/Test Cases/_Results_Ideal/Parser.txt b/inform7/Tests/Test Cases/_Results_Ideal/Parser.txt
new file mode 100644
index 000000000..3d0cf8e7c
--- /dev/null
+++ b/inform7/Tests/Test Cases/_Results_Ideal/Parser.txt	
@@ -0,0 +1,26 @@
+   Schloss Parserhof
+  Welcome
+  An Interactive Fiction
+  Release 1 / Serial number 160428 / Inform 7 v10.1.0 / D
+  
+  Schloss Parserhof
+  Begun by Mad King Ludwig in 1878, this grand foyer was projected to be the antechamber to a long series of exotic chambers in which the Austrian monarch could have parser antics performed before his eyes. Build on a north-south spinal passage, it has been found monotonous by some architectural critics.
+  
+> >   Discard UNDO Testing Place
+  Discard UNDO Testing Place
+  You can see a bottle here.
+  
+> >   Discard UNDO Testing Place
+  Smash!
+  
+> >   Discard UNDO Testing Place
+  That's not a verb I recognise.
+  
+> >   Discard UNDO Testing Place
+  Discard UNDO Testing Place
+  [Previous turn undone.]
+  
+> >   Discard UNDO Testing Place
+  It's broken.
+  
+> >
\ No newline at end of file