Add failing tests for #111

tests/tokenizer/templates.mwtest

@@ -1,17 +1,3 @@
-name:   blank
-label:  template with no content
-input:  "{{}}"
-output: [TemplateOpen(), TemplateClose()]
-
-
-name:   blank_with_params
-label:  template with no content, but pipes and equal signs
-input:  "{{||=|}}"
-output: [TemplateOpen(), TemplateParamSeparator(), TemplateParamSeparator(), TemplateParamEquals(), TemplateParamSeparator(), TemplateClose()]
-
-
 name:   no_params
 label:  simplest type of template
 input:  "{{template}}"
@@ -61,6 +47,13 @@ output: [TemplateOpen(), Text(text="foo"), TemplateParamSeparator(), Text(text="
 
 ---
 
+name:   blank_params
+label:  template with blank parameters (mix of pipes and equal signs)
+input:  "{{,||=|}}"
+output: [TemplateOpen(), Text(text=","), TemplateParamSeparator(), TemplateParamSeparator(), TemplateParamEquals(), TemplateParamSeparator(), TemplateClose()]
+
+---
+
 name:   nested_unnamed_param
 label:  nested template as an unnamed parameter
 input:  "{{foo|{{bar}}}}"
@@ -390,6 +383,34 @@ output: [TemplateOpen(), Text(text="foo\n  "), TemplateParamSeparator(), Text(te
 
 ---
 
+name:   invalid_blank
+label:  invalid template with no content
+input:  "{{}}"
+output: [Text(text="{{}}")]
+
+---
+
+name:   invalid_blank_whitespace
+label:  invalid template with no content, but whitespace
+input:  "{{  }}"
+output: [Text(text="{{  }}")]
+
+---
+
+name:   invalid_blank_pipe
+label:  invalid template with no content, but a parameter
+input:  "{{|foo}}"
+output: [Text(text="{{|foo}}")]
+
+---
+
+name:   invalid_blank_whitespace_pipe
+label:  invalid template with no content, but whitespace and a parameter
+input:  "{{  |foo}}"
+output: [Text(text="{{  |foo}}")]
+
+---
+
 name:   invalid_name_left_brace_middle
 label:  invalid characters in template name: left brace in middle
 input:  "{{foo{bar}}"