diff --git a/spectec/test-frontend/TEST.md b/spectec/test-frontend/TEST.md
index ba8a7148bc..a44970ce13 100644
--- a/spectec/test-frontend/TEST.md
+++ b/spectec/test-frontend/TEST.md
@@ -1,3 +1,139 @@
+# Test
+
+```sh
+$ (dune exec ../src/exe-watsup/main.exe -- test.watsup -o test.tex && cat test.tex)
+$$
+\begin{array}{@{}lrrl@{}l@{}}
+& {\mathit{testmixfix}} &::=& \{{{\mathit{nat}}^\ast}\} ~|~ [{{\mathit{nat}}^\ast}] ~|~ {\mathit{nat}} \rightarrow {\mathit{nat}} \\
+\end{array}
+$$
+
+$$
+\begin{array}{@{}lcl@{}l@{}}
+{\mathrm{testmixfix}}(\{{{\mathit{nat}}^\ast}\}) &=& {{\mathit{nat}}^\ast} &  \\
+{\mathrm{testmixfix}}([{{\mathit{nat}}^\ast}]) &=& {{\mathit{nat}}^\ast} &  \\
+{\mathrm{testmixfix}}({\mathit{nat}}_{{1}} \rightarrow {\mathit{nat}}_{{2}}) &=& {\mathit{nat}}_{{1}}~{\mathit{nat}}_{{2}} &  \\
+\end{array}
+$$
+
+\vspace{1ex}
+
+$$
+\begin{array}{@{}lrrl@{}l@{}}
+& {\mathit{opt}} &::=& {\mathsf{o}^?} \\
+& {\mathit{list}} &::=& {\mathsf{l}^\ast} \\
+& {\mathit{variant}} &::=& \mathsf{v{\scriptstyle1}}~{\mathit{opt}}~{\mathit{nat}} \\ &&|&
+\mathsf{v{\scriptstyle2}}~{\mathsf{o}^?}~{\mathit{nat}} \\ &&|&
+\mathsf{v{\scriptstyle3}}~{{\mathit{text}}^?}~{\mathit{nat}} \\ &&|&
+\mathsf{v{\scriptstyle4}}~{\mathit{list}}~{\mathit{nat}} \\ &&|&
+\mathsf{v{\scriptstyle5}}~{\mathsf{l}^\ast}~{\mathit{nat}} \\ &&|&
+\mathsf{v{\scriptstyle6}}~{{\mathit{text}}^\ast}~{\mathit{nat}} \\
+& {\mathit{notation{\scriptstyle1}}} &::=& {\mathit{opt}}~{\mathit{nat}} \\
+& {\mathit{notation{\scriptstyle2}}} &::=& {\mathsf{o}^?}~{\mathit{nat}} \\
+& {\mathit{notation{\scriptstyle3}}} &::=& {{\mathit{text}}^?}~{\mathit{nat}} \\
+& {\mathit{notation{\scriptstyle4}}} &::=& {\mathit{list}}~{\mathit{nat}} \\
+& {\mathit{notation{\scriptstyle5}}} &::=& {\mathsf{l}^\ast}~{\mathit{nat}} \\
+& {\mathit{notation{\scriptstyle6}}} &::=& {{\mathit{text}}^\ast}~{\mathit{nat}} \\
+\end{array}
+$$
+
+$$
+\begin{array}{@{}lcl@{}l@{}}
+{\mathrm{testemptyv{\scriptstyle1}}}(\mathsf{v{\scriptstyle1}}~{\mathit{opt}}~0) &=& 0 &  \\
+{\mathrm{testemptyv{\scriptstyle1}}}(\mathsf{v{\scriptstyle1}}~\epsilon~0) &=& 0 &  \\
+{\mathrm{testemptyv{\scriptstyle1}}}(\mathsf{v{\scriptstyle1}}~0) &=& 0 &  \\
+{\mathrm{testemptyv{\scriptstyle1}}}(\mathsf{v{\scriptstyle1}}~\mathsf{o}~0) &=& 0 &  \\
+\end{array}
+$$
+
+$$
+\begin{array}{@{}lcl@{}l@{}}
+{\mathrm{testemptyv{\scriptstyle2}}}(\mathsf{v{\scriptstyle2}}~\epsilon~0) &=& 0 &  \\
+{\mathrm{testemptyv{\scriptstyle2}}}(\mathsf{v{\scriptstyle2}}~0) &=& 0 &  \\
+{\mathrm{testemptyv{\scriptstyle2}}}(\mathsf{v{\scriptstyle2}}~\mathsf{o}~0) &=& 0 &  \\
+\end{array}
+$$
+
+$$
+\begin{array}{@{}lcl@{}l@{}}
+{\mathrm{testemptyv{\scriptstyle3}}}(\mathsf{v{\scriptstyle3}}~\epsilon~0) &=& 0 &  \\
+{\mathrm{testemptyv{\scriptstyle3}}}(\mathsf{v{\scriptstyle3}}~0) &=& 0 &  \\
+{\mathrm{testemptyv{\scriptstyle3}}}(\mathsf{v{\scriptstyle3}}~``''~0) &=& 0 &  \\
+\end{array}
+$$
+
+$$
+\begin{array}{@{}lcl@{}l@{}}
+{\mathrm{testemptyv{\scriptstyle4}}}(\mathsf{v{\scriptstyle4}}~{\mathit{list}}~0) &=& 0 &  \\
+{\mathrm{testemptyv{\scriptstyle4}}}(\mathsf{v{\scriptstyle4}}~\epsilon~0) &=& 0 &  \\
+{\mathrm{testemptyv{\scriptstyle4}}}(\mathsf{v{\scriptstyle4}}~\mathsf{l}~0) &=& 0 &  \\
+\end{array}
+$$
+
+$$
+\begin{array}{@{}lcl@{}l@{}}
+{\mathrm{testemptyv{\scriptstyle5}}}(\mathsf{v{\scriptstyle5}}~\epsilon~0) &=& 0 &  \\
+{\mathrm{testemptyv{\scriptstyle5}}}(\mathsf{v{\scriptstyle5}}~\mathsf{l}~0) &=& 0 &  \\
+\end{array}
+$$
+
+$$
+\begin{array}{@{}lcl@{}l@{}}
+{\mathrm{testemptyv{\scriptstyle6}}}(\mathsf{v{\scriptstyle6}}~\epsilon~0) &=& 0 &  \\
+{\mathrm{testemptyv{\scriptstyle6}}}(\mathsf{v{\scriptstyle6}}~``''~0) &=& 0 &  \\
+\end{array}
+$$
+
+$$
+\begin{array}{@{}lcl@{}l@{}}
+{\mathrm{testemptyn{\scriptstyle1}}}({\mathit{opt}}~0) &=& 0 &  \\
+{\mathrm{testemptyn{\scriptstyle1}}}(\epsilon~0) &=& 0 &  \\
+{\mathrm{testemptyn{\scriptstyle1}}}(0) &=& 0 &  \\
+{\mathrm{testemptyn{\scriptstyle1}}}(\mathsf{o}~0) &=& 0 &  \\
+\end{array}
+$$
+
+$$
+\begin{array}{@{}lcl@{}l@{}}
+{\mathrm{testemptyn{\scriptstyle2}}}(\epsilon~0) &=& 0 &  \\
+{\mathrm{testemptyn{\scriptstyle2}}}(0) &=& 0 &  \\
+{\mathrm{testemptyn{\scriptstyle2}}}(\mathsf{o}~0) &=& 0 &  \\
+\end{array}
+$$
+
+$$
+\begin{array}{@{}lcl@{}l@{}}
+{\mathrm{testemptyn{\scriptstyle3}}}(\epsilon~0) &=& 0 &  \\
+{\mathrm{testemptyn{\scriptstyle3}}}(0) &=& 0 &  \\
+{\mathrm{testemptyn{\scriptstyle3}}}(``''~0) &=& 0 &  \\
+\end{array}
+$$
+
+$$
+\begin{array}{@{}lcl@{}l@{}}
+{\mathrm{testemptyn{\scriptstyle4}}}({\mathit{list}}~0) &=& 0 &  \\
+{\mathrm{testemptyn{\scriptstyle4}}}(\epsilon~0) &=& 0 &  \\
+{\mathrm{testemptyn{\scriptstyle4}}}(\mathsf{l}~0) &=& 0 &  \\
+\end{array}
+$$
+
+$$
+\begin{array}{@{}lcl@{}l@{}}
+{\mathrm{testemptyn{\scriptstyle5}}}(\epsilon~0) &=& 0 &  \\
+{\mathrm{testemptyn{\scriptstyle5}}}(\mathsf{l}~0) &=& 0 &  \\
+\end{array}
+$$
+
+$$
+\begin{array}{@{}lcl@{}l@{}}
+{\mathrm{testemptyn{\scriptstyle6}}}(\epsilon~0) &=& 0 &  \\
+{\mathrm{testemptyn{\scriptstyle6}}}(``''~0) &=& 0 &  \\
+\end{array}
+$$
+
+```
+
+
 # Preview
 
 ```sh
diff --git a/spectec/test-frontend/dune b/spectec/test-frontend/dune
index bf21b3f8b1..0bcaeeba60 100644
--- a/spectec/test-frontend/dune
+++ b/spectec/test-frontend/dune
@@ -3,6 +3,7 @@
   (deps
     (file ../src/exe-watsup/main.exe)
     (glob_files_rec ../spec/*)
+    (file test.watsup)
   )
   (files TEST.md)
 )
diff --git a/spectec/test-latex/TEST.md b/spectec/test-latex/TEST.md
index 163796e7e8..ad66ef9b85 100644
--- a/spectec/test-latex/TEST.md
+++ b/spectec/test-latex/TEST.md
@@ -2,13 +2,32 @@
 
 ```sh
 $ (dune exec ../src/exe-watsup/main.exe -- test.watsup -o test.tex && cat test.tex)
-/Users/me/Desktop/Work/Software/wasm/spec.tec/spectec/_build/default/test-latex/../src/exe-watsup/main.exe: uncaught exception Sys_error("test.watsup: No such file or directory")
-Raised by primitive operation at Stdlib.open_in_gen in file "stdlib.ml", line 405, characters 28-54
-Called from Stdlib.open_in in file "stdlib.ml" (inlined), line 410, characters 2-45
-Called from Frontend__Parse.parse_file in file "src/frontend/parse.ml", line 20, characters 11-23
-Called from Stdlib__List.concat_map.aux in file "list.ml", line 268, characters 16-19
-Called from Dune__exe__Main in file "src/exe-watsup/main.ml", line 132, characters 13-60
-[2]
+$$
+\begin{array}{@{}lcl@{}l@{}}
+{\mathrm{test}}_{{\mathit{sub}}_{{\mathsf{atom}}_{{22}}}}({\mathit{n}}_{{3}_{{\mathsf{atom}}_{{\mathit{y}}}}}) &=& 0 &  \\
+\end{array}
+$$
+
+$$
+\begin{array}{@{}lcl@{}l@{}}
+{{\mathrm{curried}}}_{{\mathit{n}}_{{1}}}({\mathit{n}}_{{2}}) &=& {\mathit{n}}_{{1}} + {\mathit{n}}_{{2}} &  \\
+\end{array}
+$$
+
+$$
+\begin{array}{@{}lrrl@{}l@{}}
+& {\mathit{testfuse}} &::=& {\mathsf{ab}}_{{\mathit{nat}}}\,{\mathit{nat}}~{\mathit{nat}} \\ &&|&
+{\mathsf{cd}}_{{\mathit{nat}}}\,{\mathit{nat}}~{\mathit{nat}} \\ &&|&
+{\mathsf{ef\_}}{{\mathit{nat}}}~{\mathit{nat}}~{\mathit{nat}} \\ &&|&
+{{\mathsf{gh}}_{{\mathit{nat}}}}{{\mathit{nat}}}~{\mathit{nat}} \\ &&|&
+{{\mathsf{ij}}_{{\mathit{nat}}}}{{\mathit{nat}}}~{\mathit{nat}} \\ &&|&
+{\mathsf{kl\_ab}}{{\mathit{nat}}}~{\mathit{nat}}~{\mathit{nat}} \\ &&|&
+{\mathsf{mn\_}}{\mathsf{ab}}~{\mathit{nat}}~{\mathit{nat}}~{\mathit{nat}} \\ &&|&
+{{\mathsf{op\_}}{\mathsf{ab}}}{{\mathit{nat}}}~{\mathit{nat}}~{\mathit{nat}} \\ &&|&
+{{\mathsf{qr}}_{{\mathit{nat}}}}{\mathsf{ab}}~{\mathit{nat}}~{\mathit{nat}} \\
+\end{array}
+$$
+
 ```
 
 
diff --git a/spectec/test-latex/dune b/spectec/test-latex/dune
index dfd231e5b2..6ecb9a8756 100644
--- a/spectec/test-latex/dune
+++ b/spectec/test-latex/dune
@@ -4,6 +4,7 @@
     (file ../src/exe-watsup/main.exe)
     (glob_files_rec ../spec/*)
     (file spec-splice.in.tex)
+    (file test.watsup)
   )
   (files TEST.md)
 )