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|
open StdLabels
open OUnit2
module Expression = ImportExpression.T
module Path = ImportDataTypes.Path
open Path
let printer = function
| Ok e -> ImportExpression.Repr.repr ImportConf.Path.repr e
| Error msg -> msg
let parse_dquoted =
"parse_dquoted" >:: fun _ ->
let expr = "match(\"\\(..\\)\", :B)" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer
(Ok
(Function
("match", [ Literal "\\(..\\)"; Path { alias = None; column = 2 } ])))
result
let parse_quoted =
"parse_quoted" >:: fun _ ->
let expr = "match('\\(..\\)', :B)" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer
(Ok
(Function
("match", [ Literal "\\(..\\)"; Path { alias = None; column = 2 } ])))
result
let concat =
"concat" >:: fun _ ->
let expr = ":A ^ :B" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer
(Ok
(Concat
[
Path { alias = None; column = 1 }; Path { alias = None; column = 2 };
]))
result
let concat2 =
"concat2" >:: fun _ ->
let expr = "'A' ^ '_' ^ 'B'" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer
(Ok (Concat [ Literal "A"; Literal "_"; Literal "B" ]))
result
let litteral =
"litteral" >:: fun _ ->
(* The text is quoted in shall not be considered as a path *)
let expr = "':A'" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer (Ok (Literal ":A")) result
let empty =
"empty" >:: fun _ ->
let expr = "" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer (Ok Empty) result
let upper_nvl =
"upper_nvl" >:: fun _ ->
let expr = "NVL('','')" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer (Ok (Nvl [ Empty; Empty ])) result
let lower_nvl =
"lower_nvl" >:: fun _ ->
let expr = "nvl('','')" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer (Ok (Nvl [ Empty; Empty ])) result
let numeric =
"numeric" >:: fun _ ->
let expr = "123" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer (Ok (Integer "123")) result
let numeric_neg =
"numeric_neg" >:: fun _ ->
let expr = "-123" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer (Ok (Integer "-123")) result
let op_priority =
"operator_priority" >:: fun _ ->
let expr = "1 + 2 > 2" in
let result = ImportConf.expression_from_string expr
and expected =
ImportExpression.T.(
BOperator (GT, BOperator (Add, Integer "1", Integer "2"), Integer "2"))
in
assert_equal ~printer (Ok expected) result
let op_priority2 =
"operator_priority" >:: fun _ ->
let expr = "1 ^ 2 = 2" in
let result = ImportConf.expression_from_string expr
and expected =
ImportExpression.T.(
BOperator (Equal, Concat [ Integer "1"; Integer "2" ], Integer "2"))
in
assert_equal ~printer (Ok expected) result
let join =
"join" >:: fun _ ->
let expr = "join('sep', :A, :B)" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer
(Ok
(Join
( "sep",
[
Path { alias = None; column = 1 };
Path { alias = None; column = 2 };
] )))
result
let join_empty =
"join" >:: fun _ ->
let expr = "join('', :A, :B)" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer
(Ok
(Join
( "",
[
Path { alias = None; column = 1 };
Path { alias = None; column = 2 };
] )))
result
let upper =
"upper" >:: fun _ ->
let expr = "upper('')" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer (Ok (Function' (Upper, [ Empty ]))) result
let trim =
"trim" >:: fun _ ->
let expr = "trim('')" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer (Ok (Function' (Trim, [ Empty ]))) result
(** Extract the columns from a window function *)
let fold_values =
"fold_values" >:: fun _ ->
(* The expression we want to test *)
let expr =
Expression.Window
( Previous (Path { alias = None; column = 1 }),
[ Path { alias = None; column = 2 } ],
[ Path { alias = None; column = 3 } ] )
in
(* Extract the columns from the expression. The result is sorted because
the order is not preserved during the extraction. *)
let result =
Expression.fold_values ~init:[] ~f:(fun acc v -> v :: acc) expr
|> List.sort ~cmp:Path.compare
in
let expected =
[
{ alias = None; column = 1 };
{ alias = None; column = 2 };
{ alias = None; column = 3 };
]
in
assert_equal expected result
let bad_quote =
"bad_quote" >:: fun _ ->
let expr = "':source.A" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer (Error "Unclosed quote at line 1 : \"':source.A\"")
result
let nested_expression =
"nested_expression" >:: fun _ ->
let expr = "1 = (1 = 0)" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer
(Ok
(BOperator
( Equal,
Integer "1",
Expr (BOperator (Equal, Integer "1", Integer "0")) )))
result
let priority_equality =
"priority_equality" >:: fun _ ->
let expr = "1 = 1 = 0" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer
(Ok
(BOperator
(Equal, Integer "1", BOperator (Equal, Integer "1", Integer "0"))))
result
let priority_operator_and =
"priority_equality" >:: fun _ ->
let expr = "1 and 1 = 0" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer
(Ok
(BOperator (And, Integer "1", BOperator (Equal, Integer "1", Integer "0"))))
result
let priority_operator_or =
"priority_equality" >:: fun _ ->
let expr = "1 <> 1 or 0" in
let result = ImportConf.expression_from_string expr in
assert_equal ~printer
(Ok
(BOperator
(Or, BOperator (Different, Integer "1", Integer "1"), Integer "0")))
result
let test_suit =
[
parse_dquoted;
parse_quoted;
concat;
concat2;
litteral;
empty;
upper_nvl;
lower_nvl;
numeric;
numeric_neg;
op_priority;
op_priority2;
join;
upper;
trim;
join_empty;
fold_values;
bad_quote;
nested_expression;
priority_equality;
priority_operator_and;
priority_operator_or;
]
let tests = "configuration_expression" >::: test_suit
|
