add more tests

test/corpus/filter.txt

@@ -0,0 +1,42 @@
+==================
+Filter Basic
+==================
+
+<p>
+{% filter upper %}
+hello
+{% endfilter %}
+</p>
+
+---
+
+(template
+  (content)
+  (filter_group
+    (filter_expression
+      (filter))
+    (template
+      (content)))
+  (content))
+
+==================
+Filter With Chain
+==================
+
+<p>
+{% filter lower|title %}
+HELLO WORLD
+{% endfilter %}
+</p>
+
+---
+
+(template
+  (content)
+  (filter_group
+    (filter_expression
+      (filter)
+      (filter))
+    (template
+      (content)))
+  (content))

test/corpus/firstof.txt

@@ -0,0 +1,46 @@
+==================
+Firstof Basic
+==================
+
+{% firstof var1 var2 "default" %}
+
+---
+
+(template
+  (content)
+  (firstof
+    (filtered_value
+      (value
+        (variable_attribute
+          (identifier))))
+    (filtered_value
+      (value
+        (variable_attribute
+          (identifier))))
+    (filtered_value
+      (value
+        (literal
+          (string)))))
+  (content))
+
+==================
+Firstof With As
+==================
+
+{% firstof var1 var2 as result %}
+
+---
+
+(template
+  (content)
+  (firstof
+    (filtered_value
+      (value
+        (variable_attribute
+          (identifier))))
+    (filtered_value
+      (value
+        (variable_attribute
+          (identifier))))
+    (identifier))
+  (content))

test/corpus/for.txt

@@ -0,0 +1,94 @@
+==================
+For Basic
+==================
+
+<ul>
+{% for item in items %}
+<li>{{ item }}</li>
+{% endfor %}
+</ul>
+
+---
+
+(template
+  (content)
+  (for_group
+    variables: (identifier)
+    (filtered_value
+      (value
+        (variable_attribute
+          (identifier))))
+    (template
+      (content)
+      (template_variable
+        (filtered_value
+          (value
+            (variable_attribute
+              (identifier)))))
+      (content)))
+  (content))
+
+==================
+For With Multiple Variables
+==================
+
+<dl>
+{% for key, value in items %}
+<dt>{{ key }}</dt>
+{% endfor %}
+</dl>
+
+---
+
+(template
+  (content)
+  (for_group
+    variables: (identifier)
+    variables: (identifier)
+    (filtered_value
+      (value
+        (variable_attribute
+          (identifier))))
+    (template
+      (content)
+      (template_variable
+        (filtered_value
+          (value
+            (variable_attribute
+              (identifier)))))
+      (content)))
+  (content))
+
+==================
+For With Empty
+==================
+
+<ul>
+{% for item in items %}
+<li>{{ item }}</li>
+{% empty %}
+<li>Empty</li>
+{% endfor %}
+</ul>
+
+---
+
+(template
+  (content)
+  (for_group
+    variables: (identifier)
+    (filtered_value
+      (value
+        (variable_attribute
+          (identifier))))
+    (template
+      (content)
+      (template_variable
+        (filtered_value
+          (value
+            (variable_attribute
+              (identifier)))))
+      (content))
+    (template
+      (content)))
+  (content))

test/corpus/if.txt

@@ -0,0 +1,89 @@
+==================
+If Basic
+==================
+
+{% if user.is_authenticated %}
+Hi
+{% endif %}
+
+---
+
+(template
+  (content)
+  (if_group
+    (predicate
+      (filtered_value
+        (value
+          (variable_attribute
+            (identifier)
+            (attribute)))))
+    (template
+      (content)))
+  (content))
+
+==================
+If With Not
+==================
+
+{% if not done %}
+working
+{% endif %}
+
+---
+
+(template
+  (content)
+  (if_group
+    (predicate
+      (filtered_value
+        (value
+          (variable_attribute
+            (identifier)))))
+    (template
+      (content)))
+  (content))
+
+==================
+If With Elif And Else
+==================
+
+{% if count == 1 %}
+one
+{% elif count == 2 %}
+two
+{% else %}
+other
+{% endif %}
+
+---
+
+(template
+  (content)
+  (if_group
+    (predicate
+      (filtered_value
+        (value
+          (variable_attribute
+            (identifier))))
+      (binaryOperator)
+      (filtered_value
+        (value
+          (literal
+            (number)))))
+    (template
+      (content))
+    (predicate
+      (filtered_value
+        (value
+          (variable_attribute
+            (identifier))))
+      (binaryOperator)
+      (filtered_value
+        (value
+          (literal
+            (number)))))
+    (template
+      (content))
+    (template
+      (content)))
+  (content))

test/corpus/ifchanged.txt

@@ -0,0 +1,41 @@
+==================
+Ifchanged Basic
+==================
+
+{% ifchanged %}
+content
+{% endifchanged %}
+
+---
+
+(template
+  (content)
+  (ifchanged_group
+    (template
+      (content)))
+  (content))
+
+==================
+Ifchanged With Values
+==================
+
+{% ifchanged var1 var2 %}
+content
+{% endifchanged %}
+
+---
+
+(template
+  (content)
+  (ifchanged_group
+    (filtered_value
+      (value
+        (variable_attribute
+          (identifier))))
+    (filtered_value
+      (value
+        (variable_attribute
+          (identifier))))
+    (template
+      (content)))
+  (content))

test/corpus/include.txt

@@ -0,0 +1,33 @@
+==================
+Include With String
+==================
+
+{% include "sidebar.html" %}
+
+---
+
+(template
+  (content)
+  (include
+    (filtered_value
+      (value
+        (literal
+          (string)))))
+  (content))
+
+==================
+Include With Variable
+==================
+
+{% include template_name %}
+
+---
+
+(template
+  (content)
+  (include
+    (filtered_value
+      (value
+        (variable_attribute
+          (identifier)))))
+  (content))

test/corpus/lorem.txt

@@ -0,0 +1,33 @@
+==================
+Lorem Words
+==================
+
+{% lorem 3 w %}
+
+---
+
+(template
+  (content)
+  (lorem
+    (filtered_value
+      (value
+        (literal
+          (number)))))
+  (content))
+
+==================
+Lorem Paragraphs Random
+==================
+
+{% lorem 2 p random %}
+
+---
+
+(template
+  (content)
+  (lorem
+    (filtered_value
+      (value
+        (literal
+          (number)))))
+  (content))

test/corpus/verbatim.txt

@@ -0,0 +1,83 @@
+==================
+Verbatim Basic
+==================
+
+{% verbatim %}{{ hello }}{% endverbatim %}
+
+---
+
+(template
+  (content)
+  (verbatim_group
+    name: (push_verbatim)
+    (verbatim_content)
+    (pop_verbatim))
+  (content))
+
+==================
+Verbatim Empty
+==================
+
+{% verbatim %}{% endverbatim %}
+
+---
+
+(template
+  (content)
+  (verbatim_group
+    name: (push_verbatim)
+    (pop_verbatim))
+  (content))
+
+==================
+Verbatim Ignores Tags
+==================
+
+{% verbatim %}
+{{ hello }}
+{% for x in y %}
+{% endverbatim %}
+
+---
+
+(template
+  (content)
+  (verbatim_group
+    name: (push_verbatim)
+    (verbatim_content)
+    (pop_verbatim))
+  (content))
+
+==================
+Verbatim With Name
+==================
+
+{% verbatim myblock %}{{ hello }}{% endverbatim myblock %}
+
+---
+
+(template
+  (content)
+  (verbatim_group
+    name: (push_verbatim)
+    (verbatim_content)
+    (pop_verbatim))
+  (content))
+
+==================
+Verbatim With Name Allows Nested Unnamed Verbatim
+==================
+
+{% verbatim myblock %}
+Avoid template rendering via the {% verbatim %}{% endverbatim %} block.
+{% endverbatim myblock %}
+
+---
+
+(template
+  (content)
+  (verbatim_group
+    name: (push_verbatim)
+    (verbatim_content)
+    (pop_verbatim))
+  (content))