Add support for username

6 files changed, 35 insertions, 5 deletions

diff --git a/README.md b/README.md
index 172639d..f48fd88 100644
--- a/README.md
+++ b/README.md
@@ -108,6 +108,17 @@ id
 4
 ```
 
+- Username
+
+```sh
+$ fixgen '_(4): user username'
+user
+ivan0
+judy1
+frank2
+walter3
+```
+
 ## Development - Prerequisites
 
 - [Nix](https://nixos.org/manual/nix/stable/installation/installing-binary)
diff --git a/lib/ast_types.ml b/lib/ast_types.ml
index 0cbdb4f..0a4c05d 100644
--- a/lib/ast_types.ml
+++ b/lib/ast_types.ml
@@ -9,6 +9,7 @@ type ast_row =
   | Email of string * ast_row
   | Const of string * string * ast_row
   | List of string * string list * ast_row
+  | Username of string * ast_row
   | Foreign of string * string * string * ast_row
   (* parent, row, child_name, row *)
   | End
@@ -26,6 +27,9 @@ let rec print_row = function
   | Uuidv4 (s, r) ->
     printf "UUIDv4(%s)," s;
     print_row r
+  | Username (s, r) ->
+    printf "User(%s)," s;
+    print_row r
   | List (s, l, r) ->
     printf "List(%s, %s)," s (String.concat ", " l);
     print_row r
@@ -84,6 +88,7 @@ let rec ast_row_to_fixtures = function
   | List (s, l, r) -> PColumn (Fixture.List (s, l)) :: ast_row_to_fixtures r
   | Increment (s, r) -> PColumn (Fixture.Increment s) :: ast_row_to_fixtures r
   | Email (s, r) -> PColumn (Fixture.Email s) :: ast_row_to_fixtures r
+  | Username (s, r) -> PColumn (Fixture.Username s) :: ast_row_to_fixtures r
   | End -> []
 
 let extend_table_with_row table row = 
diff --git a/lib/fixture.ml b/lib/fixture.ml
index 18e2ff6..d127405 100644
--- a/lib/fixture.ml
+++ b/lib/fixture.ml
@@ -50,7 +50,7 @@ let email_hosts =
   ]
 
 
-let random_value_in_list values = List.nth values (Random.int (List.length values))
+let random_value_in_list values () = List.nth values (Random.int (List.length values))
 
 type compiled =
   | Int of int
@@ -68,7 +68,10 @@ let show_compiled_csv fixture =
 
 
 let random_email index () =
-  random_value_in_list email_handles ^ index ^ "@" ^ random_value_in_list email_hosts
+  random_value_in_list email_handles ()
+  ^ index
+  ^ "@"
+  ^ random_value_in_list email_hosts ()
 
 
 let random_name () = List.nth names (Random.int (List.length names))
@@ -92,6 +95,7 @@ let key_of_compiled key =
 
 type t =
   | Name of string
+  | Username of string
   | Uuidv4 of string
   | Foreign of string * compiled list
   | Int of string * int * int
@@ -105,13 +109,14 @@ let generate_fixture index fixture =
   let str_index = string_of_int index in
   match fixture with
   | Name _ -> String (random_name () ^ str_index)
+  | Username _ -> String (random_value_in_list email_handles () ^ str_index)
   | Uuidv4 _ -> String (Uuidm.v `V4 |> Uuidm.to_string)
-  | Foreign (_, reference) -> random_value_in_list reference
+  | Foreign (_, reference) -> random_value_in_list reference ()
   | Increment _ -> Int (index + 1)
   | Const (_, value) -> String value
   | Email _ -> String (random_email str_index ())
   | Int (_, min, max) -> Int (Random.int (max - min) + min)
-  | List (_, values) -> String (random_value_in_list values)
+  | List (_, values) -> String (random_value_in_list values ())
 
 
 let add_name name fixtures = Name name :: fixtures
@@ -120,13 +125,14 @@ let add_foreign id values fixtures = Foreign (id, values) :: fixtures
 
 let%test "random_value_in_list" =
   let values = [ "a"; "b"; "c" ] in
-  let result = random_value_in_list values in
+  let result = random_value_in_list values () in
   List.mem result values
 
 
 (* TODO: Support "hashed" password *)
 (* TODO: Support dates *)
 (* TODO: Support variables using @ *)
+(* TODO: Support username *)
 
 let rec replicate element n =
   match n with
@@ -143,6 +149,7 @@ let id_of_fixture fixture =
     match fixture with
     | Name id -> id
     | Uuidv4 id -> id
+    | Username id -> id
     | Increment id -> id
     | Foreign (id, _) -> id
     | Const (id, _) -> id
diff --git a/lib/lexer.mll b/lib/lexer.mll
index ad3be3c..1985c2d 100644
--- a/lib/lexer.mll
+++ b/lib/lexer.mll
@@ -21,6 +21,7 @@ rule read =
   | "email" { EMAIL }
   | "name" { NAME }
   | "increment" { INCREMENT }
+  | "username" { USERNAME }
   | "int" { INTSYMBOL } 
   | id { IDENTIFIER (Lexing.lexeme lexbuf) }
   | "(" { LBRACE }
diff --git a/lib/parser.mly b/lib/parser.mly
index e6bcb6d..177daaf 100644
--- a/lib/parser.mly
+++ b/lib/parser.mly
@@ -17,6 +17,7 @@
 %token RBRACE
 %token EMAIL
 %token <string> STRING
+%token USERNAME
 %start <ast_table option > prog 
 %% 
 
@@ -30,6 +31,7 @@ id_or_other:
   | UUIDV4 { "uuidv4" }
   | INCREMENT { "increment" }
   | EMAIL { "email" }
+  | USERNAME { "username" }
 
 
 expr:
@@ -54,6 +56,9 @@ row:
   | row_title = id_or_other; EMAIL; COMMA; r = row { Email (row_title, r) }
   | row_title = id_or_other; EMAIL { Email (row_title, End) }
 
+  | row_title = id_or_other; USERNAME; COMMA; r = row { Username (row_title, r) }
+  | row_title = id_or_other; USERNAME { Username (row_title, End) }
+
   | row_title = id_or_other; INCREMENT; COMMA; r = row { Increment (row_title, r) }
   | row_title = id_or_other; INCREMENT { Increment (row_title, End) }
 
diff --git a/test/test_parser.ml b/test/test_parser.ml
index 41fea3d..057c525 100644
--- a/test/test_parser.ml
+++ b/test/test_parser.ml
@@ -28,6 +28,7 @@ let rows_suite =
     , test_parse "purchases (5): name int(1,20)" )
   ; "Supports underscore tables", `Quick, test_parse "purchases_new (5): name int(1,20)"
   ; "Supports incremental index", `Quick, test_parse "purchases_new (5): id increment"
+  ; "Supports username", `Quick, test_parse "_ (5): name username"
   ; "Supports email", `Quick, test_parse "user (2): email email"
   ]