crates/parser/src/tests/top_entries.rs

   1 use expect_test::expect;
   2
   3 use crate::TopEntryPoint;
   4
   5 #[test]
   6 fn source_file() {
   7     check(
   8         TopEntryPoint::SourceFile,
   9         "",
  10         expect![[r#"
  11         SOURCE_FILE
  12     "#]],
  13     );
  14
  15     check(
  16         TopEntryPoint::SourceFile,
  17         "struct S;",
  18         expect![[r#"
  19         SOURCE_FILE
  20           STRUCT
  21             STRUCT_KW "struct"
  22             WHITESPACE " "
  23             NAME
  24               IDENT "S"
  25             SEMICOLON ";"
  26     "#]],
  27     );
  28
  29     check(
  30         TopEntryPoint::SourceFile,
  31         "@error@",
  32         expect![[r#"
  33         SOURCE_FILE
  34           ERROR
  35             AT "@"
  36           MACRO_CALL
  37             PATH
  38               PATH_SEGMENT
  39                 NAME_REF
  40                   IDENT "error"
  41           ERROR
  42             AT "@"
  43         error 0: expected an item
  44         error 6: expected BANG
  45         error 6: expected `{`, `[`, `(`
  46         error 6: expected SEMICOLON
  47         error 6: expected an item
  48     "#]],
  49     );
  50 }
  51
  52 #[test]
  53 fn macro_stmt() {
  54     check(
  55         TopEntryPoint::MacroStmts,
  56         "#!/usr/bin/rust",
  57         expect![[r##"
  58             MACRO_STMTS
  59               ERROR
  60                 SHEBANG "#!/usr/bin/rust"
  61             error 0: expected expression
  62         "##]],
  63     );
  64     check(
  65         TopEntryPoint::MacroStmts,
  66         "let x = 1 2 struct S;",
  67         expect![[r#"
  68             MACRO_STMTS
  69               LET_STMT
  70                 LET_KW "let"
  71                 WHITESPACE " "
  72                 IDENT_PAT
  73                   NAME
  74                     IDENT "x"
  75                 WHITESPACE " "
  76                 EQ "="
  77                 WHITESPACE " "
  78                 LITERAL
  79                   INT_NUMBER "1"
  80               WHITESPACE " "
  81               EXPR_STMT
  82                 LITERAL
  83                   INT_NUMBER "2"
  84               WHITESPACE " "
  85               STRUCT
  86                 STRUCT_KW "struct"
  87                 WHITESPACE " "
  88                 NAME
  89                   IDENT "S"
  90                 SEMICOLON ";"
  91         "#]],
  92     );
  93 }
  94
  95 #[track_caller]
  96 fn check(entry: TopEntryPoint, input: &str, expect: expect_test::Expect) {
  97     let (parsed, _errors) = super::parse(entry, input);
  98     expect.assert_eq(&parsed)
  99 }