114 files changed, 326 insertions, 0 deletions
diff --git a/crates/syntax/test_data/lexer/err/0001_unclosed_char_at_eof.rs b/crates/syntax/test_data/lexer/err/0001_unclosed_char_at_eof.rs
new file mode 100644
index 000000000..ad2823b48
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0001_unclosed_char_at_eof.rs
@@ -0,0 +1 @@
+'
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0001_unclosed_char_at_eof.txt b/crates/syntax/test_data/lexer/err/0001_unclosed_char_at_eof.txt
new file mode 100644
index 000000000..4d5ad74df
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0001_unclosed_char_at_eof.txt
@@ -0,0 +1,2 @@
+CHAR 1 "\'"
+> error0..1 token("\'") msg(Missing trailing `'` symbol to terminate the character literal)
diff --git a/crates/syntax/test_data/lexer/err/0002_unclosed_char_with_ferris.rs b/crates/syntax/test_data/lexer/err/0002_unclosed_char_with_ferris.rs
new file mode 100644
index 000000000..e264a4152
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0002_unclosed_char_with_ferris.rs
@@ -0,0 +1 @@
+'🦀
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0002_unclosed_char_with_ferris.txt b/crates/syntax/test_data/lexer/err/0002_unclosed_char_with_ferris.txt
new file mode 100644
index 000000000..eafdb3c7c
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0002_unclosed_char_with_ferris.txt
@@ -0,0 +1,2 @@
+CHAR 5 "\'🦀"
+> error0..5 token("\'🦀") msg(Missing trailing `'` symbol to terminate the character literal)
diff --git a/crates/syntax/test_data/lexer/err/0003_unclosed_char_with_ascii_escape.rs b/crates/syntax/test_data/lexer/err/0003_unclosed_char_with_ascii_escape.rs
new file mode 100644
index 000000000..cf74b4dad
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0003_unclosed_char_with_ascii_escape.rs
@@ -0,0 +1 @@
+'\x7f
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0003_unclosed_char_with_ascii_escape.txt b/crates/syntax/test_data/lexer/err/0003_unclosed_char_with_ascii_escape.txt
new file mode 100644
index 000000000..cc2b4866a
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0003_unclosed_char_with_ascii_escape.txt
@@ -0,0 +1,2 @@
+CHAR 5 "\'\\x7f"
+> error0..5 token("\'\\x7f") msg(Missing trailing `'` symbol to terminate the character literal)
diff --git a/crates/syntax/test_data/lexer/err/0004_unclosed_char_with_unicode_escape.rs b/crates/syntax/test_data/lexer/err/0004_unclosed_char_with_unicode_escape.rs
new file mode 100644
index 000000000..50be91f68
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0004_unclosed_char_with_unicode_escape.rs
@@ -0,0 +1 @@
+'\u{20AA}
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0004_unclosed_char_with_unicode_escape.txt b/crates/syntax/test_data/lexer/err/0004_unclosed_char_with_unicode_escape.txt
new file mode 100644
index 000000000..a6d422cb3
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0004_unclosed_char_with_unicode_escape.txt
@@ -0,0 +1,2 @@
+CHAR 9 "\'\\u{20AA}"
+> error0..9 token("\'\\u{20AA}") msg(Missing trailing `'` symbol to terminate the character literal)
diff --git a/crates/syntax/test_data/lexer/err/0005_unclosed_char_with_space.rs b/crates/syntax/test_data/lexer/err/0005_unclosed_char_with_space.rs
new file mode 100644
index 000000000..309ecfe47
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0005_unclosed_char_with_space.rs
@@ -0,0 +1 @@
+' 
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0005_unclosed_char_with_space.txt b/crates/syntax/test_data/lexer/err/0005_unclosed_char_with_space.txt
new file mode 100644
index 000000000..47e7baa70
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0005_unclosed_char_with_space.txt
@@ -0,0 +1,2 @@
+CHAR 2 "\' "
+> error0..2 token("\' ") msg(Missing trailing `'` symbol to terminate the character literal)
diff --git a/crates/syntax/test_data/lexer/err/0006_unclosed_char_with_slash.rs b/crates/syntax/test_data/lexer/err/0006_unclosed_char_with_slash.rs
new file mode 100644
index 000000000..6ba258b10
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0006_unclosed_char_with_slash.rs
@@ -0,0 +1 @@
+'\
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0006_unclosed_char_with_slash.txt b/crates/syntax/test_data/lexer/err/0006_unclosed_char_with_slash.txt
new file mode 100644
index 000000000..511029d80
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0006_unclosed_char_with_slash.txt
@@ -0,0 +1,2 @@
+CHAR 2 "\'\\"
+> error0..2 token("\'\\") msg(Missing trailing `'` symbol to terminate the character literal)
diff --git a/crates/syntax/test_data/lexer/err/0007_unclosed_char_with_slash_n.rs b/crates/syntax/test_data/lexer/err/0007_unclosed_char_with_slash_n.rs
new file mode 100644
index 000000000..78bef7e3e
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0007_unclosed_char_with_slash_n.rs
@@ -0,0 +1 @@
+'\n
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0007_unclosed_char_with_slash_n.txt b/crates/syntax/test_data/lexer/err/0007_unclosed_char_with_slash_n.txt
new file mode 100644
index 000000000..d2ba5742c
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0007_unclosed_char_with_slash_n.txt
@@ -0,0 +1,2 @@
+CHAR 3 "\'\\n"
+> error0..3 token("\'\\n") msg(Missing trailing `'` symbol to terminate the character literal)
diff --git a/crates/syntax/test_data/lexer/err/0008_unclosed_char_with_slash_single_quote.rs b/crates/syntax/test_data/lexer/err/0008_unclosed_char_with_slash_single_quote.rs
new file mode 100644
index 000000000..a0e722065
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0008_unclosed_char_with_slash_single_quote.rs
@@ -0,0 +1 @@
+'\'
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0008_unclosed_char_with_slash_single_quote.txt b/crates/syntax/test_data/lexer/err/0008_unclosed_char_with_slash_single_quote.txt
new file mode 100644
index 000000000..ae9a7f0e2
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0008_unclosed_char_with_slash_single_quote.txt
@@ -0,0 +1,2 @@
+CHAR 3 "\'\\\'"
+> error0..3 token("\'\\\'") msg(Missing trailing `'` symbol to terminate the character literal)
diff --git a/crates/syntax/test_data/lexer/err/0009_unclosed_byte_at_eof.rs b/crates/syntax/test_data/lexer/err/0009_unclosed_byte_at_eof.rs
new file mode 100644
index 000000000..795dc7e25
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0009_unclosed_byte_at_eof.rs
@@ -0,0 +1 @@
+b'
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0009_unclosed_byte_at_eof.txt b/crates/syntax/test_data/lexer/err/0009_unclosed_byte_at_eof.txt
new file mode 100644
index 000000000..ff1504592
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0009_unclosed_byte_at_eof.txt
@@ -0,0 +1,2 @@
+BYTE 2 "b\'"
+> error0..2 token("b\'") msg(Missing trailing `'` symbol to terminate the byte literal)
diff --git a/crates/syntax/test_data/lexer/err/0010_unclosed_byte_with_ferris.rs b/crates/syntax/test_data/lexer/err/0010_unclosed_byte_with_ferris.rs
new file mode 100644
index 000000000..c9230dc24
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0010_unclosed_byte_with_ferris.rs
@@ -0,0 +1 @@
+b'🦀
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0010_unclosed_byte_with_ferris.txt b/crates/syntax/test_data/lexer/err/0010_unclosed_byte_with_ferris.txt
new file mode 100644
index 000000000..34f7bd6d4
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0010_unclosed_byte_with_ferris.txt
@@ -0,0 +1,2 @@
+BYTE 6 "b\'🦀"
+> error0..6 token("b\'🦀") msg(Missing trailing `'` symbol to terminate the byte literal)
diff --git a/crates/syntax/test_data/lexer/err/0011_unclosed_byte_with_ascii_escape.rs b/crates/syntax/test_data/lexer/err/0011_unclosed_byte_with_ascii_escape.rs
new file mode 100644
index 000000000..d146a8090
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0011_unclosed_byte_with_ascii_escape.rs
@@ -0,0 +1 @@
+b'\x7f
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0011_unclosed_byte_with_ascii_escape.txt b/crates/syntax/test_data/lexer/err/0011_unclosed_byte_with_ascii_escape.txt
new file mode 100644
index 000000000..c964d0f00
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0011_unclosed_byte_with_ascii_escape.txt
@@ -0,0 +1,2 @@
+BYTE 6 "b\'\\x7f"
+> error0..6 token("b\'\\x7f") msg(Missing trailing `'` symbol to terminate the byte literal)
diff --git a/crates/syntax/test_data/lexer/err/0012_unclosed_byte_with_unicode_escape.rs b/crates/syntax/test_data/lexer/err/0012_unclosed_byte_with_unicode_escape.rs
new file mode 100644
index 000000000..a3dec7c25
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0012_unclosed_byte_with_unicode_escape.rs
@@ -0,0 +1 @@
+b'\u{20AA}
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0012_unclosed_byte_with_unicode_escape.txt b/crates/syntax/test_data/lexer/err/0012_unclosed_byte_with_unicode_escape.txt
new file mode 100644
index 000000000..cc65fb86f
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0012_unclosed_byte_with_unicode_escape.txt
@@ -0,0 +1,2 @@
+BYTE 10 "b\'\\u{20AA}"
+> error0..10 token("b\'\\u{20AA}") msg(Missing trailing `'` symbol to terminate the byte literal)
diff --git a/crates/syntax/test_data/lexer/err/0013_unclosed_byte_with_space.rs b/crates/syntax/test_data/lexer/err/0013_unclosed_byte_with_space.rs
new file mode 100644
index 000000000..93b7f9c87
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0013_unclosed_byte_with_space.rs
@@ -0,0 +1 @@
+b' 
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0013_unclosed_byte_with_space.txt b/crates/syntax/test_data/lexer/err/0013_unclosed_byte_with_space.txt
new file mode 100644
index 000000000..800834a14
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0013_unclosed_byte_with_space.txt
@@ -0,0 +1,2 @@
+BYTE 3 "b\' "
+> error0..3 token("b\' ") msg(Missing trailing `'` symbol to terminate the byte literal)
diff --git a/crates/syntax/test_data/lexer/err/0014_unclosed_byte_with_slash.rs b/crates/syntax/test_data/lexer/err/0014_unclosed_byte_with_slash.rs
new file mode 100644
index 000000000..abffa5037
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0014_unclosed_byte_with_slash.rs
@@ -0,0 +1 @@
+b'\
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0014_unclosed_byte_with_slash.txt b/crates/syntax/test_data/lexer/err/0014_unclosed_byte_with_slash.txt
new file mode 100644
index 000000000..7b85ee646
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0014_unclosed_byte_with_slash.txt
@@ -0,0 +1,2 @@
+BYTE 3 "b\'\\"
+> error0..3 token("b\'\\") msg(Missing trailing `'` symbol to terminate the byte literal)
diff --git a/crates/syntax/test_data/lexer/err/0015_unclosed_byte_with_slash_n.rs b/crates/syntax/test_data/lexer/err/0015_unclosed_byte_with_slash_n.rs
new file mode 100644
index 000000000..4f46836a9
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0015_unclosed_byte_with_slash_n.rs
@@ -0,0 +1 @@
+b'\n
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0015_unclosed_byte_with_slash_n.txt b/crates/syntax/test_data/lexer/err/0015_unclosed_byte_with_slash_n.txt
new file mode 100644
index 000000000..4b9a63117
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0015_unclosed_byte_with_slash_n.txt
@@ -0,0 +1,2 @@
+BYTE 4 "b\'\\n"
+> error0..4 token("b\'\\n") msg(Missing trailing `'` symbol to terminate the byte literal)
diff --git a/crates/syntax/test_data/lexer/err/0016_unclosed_byte_with_slash_single_quote.rs b/crates/syntax/test_data/lexer/err/0016_unclosed_byte_with_slash_single_quote.rs
new file mode 100644
index 000000000..645b641ee
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0016_unclosed_byte_with_slash_single_quote.rs
@@ -0,0 +1 @@
+b'\'
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0016_unclosed_byte_with_slash_single_quote.txt b/crates/syntax/test_data/lexer/err/0016_unclosed_byte_with_slash_single_quote.txt
new file mode 100644
index 000000000..fe337f8d3
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0016_unclosed_byte_with_slash_single_quote.txt
@@ -0,0 +1,2 @@
+BYTE 4 "b\'\\\'"
+> error0..4 token("b\'\\\'") msg(Missing trailing `'` symbol to terminate the byte literal)
diff --git a/crates/syntax/test_data/lexer/err/0017_unclosed_string_at_eof.rs b/crates/syntax/test_data/lexer/err/0017_unclosed_string_at_eof.rs
new file mode 100644
index 000000000..9d68933c4
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0017_unclosed_string_at_eof.rs
@@ -0,0 +1 @@
+"
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0017_unclosed_string_at_eof.txt b/crates/syntax/test_data/lexer/err/0017_unclosed_string_at_eof.txt
new file mode 100644
index 000000000..d11a8d880
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0017_unclosed_string_at_eof.txt
@@ -0,0 +1,2 @@
+STRING 1 "\""
+> error0..1 token("\"") msg(Missing trailing `"` symbol to terminate the string literal)
diff --git a/crates/syntax/test_data/lexer/err/0018_unclosed_string_with_ferris.rs b/crates/syntax/test_data/lexer/err/0018_unclosed_string_with_ferris.rs
new file mode 100644
index 000000000..d439b8d2a
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0018_unclosed_string_with_ferris.rs
@@ -0,0 +1 @@
+"🦀
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0018_unclosed_string_with_ferris.txt b/crates/syntax/test_data/lexer/err/0018_unclosed_string_with_ferris.txt
new file mode 100644
index 000000000..167f942d1
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0018_unclosed_string_with_ferris.txt
@@ -0,0 +1,2 @@
+STRING 5 "\"🦀"
+> error0..5 token("\"🦀") msg(Missing trailing `"` symbol to terminate the string literal)
diff --git a/crates/syntax/test_data/lexer/err/0019_unclosed_string_with_ascii_escape.rs b/crates/syntax/test_data/lexer/err/0019_unclosed_string_with_ascii_escape.rs
new file mode 100644
index 000000000..56186a344
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0019_unclosed_string_with_ascii_escape.rs
@@ -0,0 +1 @@
+"\x7f
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0019_unclosed_string_with_ascii_escape.txt b/crates/syntax/test_data/lexer/err/0019_unclosed_string_with_ascii_escape.txt
new file mode 100644
index 000000000..224c653d2
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0019_unclosed_string_with_ascii_escape.txt
@@ -0,0 +1,2 @@
+STRING 5 "\"\\x7f"
+> error0..5 token("\"\\x7f") msg(Missing trailing `"` symbol to terminate the string literal)
diff --git a/crates/syntax/test_data/lexer/err/0020_unclosed_string_with_unicode_escape.rs b/crates/syntax/test_data/lexer/err/0020_unclosed_string_with_unicode_escape.rs
new file mode 100644
index 000000000..ed24095c3
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0020_unclosed_string_with_unicode_escape.rs
@@ -0,0 +1 @@
+"\u{20AA}
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0020_unclosed_string_with_unicode_escape.txt b/crates/syntax/test_data/lexer/err/0020_unclosed_string_with_unicode_escape.txt
new file mode 100644
index 000000000..48975bbcb
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0020_unclosed_string_with_unicode_escape.txt
@@ -0,0 +1,2 @@
+STRING 9 "\"\\u{20AA}"
+> error0..9 token("\"\\u{20AA}") msg(Missing trailing `"` symbol to terminate the string literal)
diff --git a/crates/syntax/test_data/lexer/err/0021_unclosed_string_with_space.rs b/crates/syntax/test_data/lexer/err/0021_unclosed_string_with_space.rs
new file mode 100644
index 000000000..72cdc841f
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0021_unclosed_string_with_space.rs
@@ -0,0 +1 @@
+" 
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0021_unclosed_string_with_space.txt b/crates/syntax/test_data/lexer/err/0021_unclosed_string_with_space.txt
new file mode 100644
index 000000000..a823cca7a
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0021_unclosed_string_with_space.txt
@@ -0,0 +1,2 @@
+STRING 2 "\" "
+> error0..2 token("\" ") msg(Missing trailing `"` symbol to terminate the string literal)
diff --git a/crates/syntax/test_data/lexer/err/0022_unclosed_string_with_slash.rs b/crates/syntax/test_data/lexer/err/0022_unclosed_string_with_slash.rs
new file mode 100644
index 000000000..00a258400
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0022_unclosed_string_with_slash.rs
@@ -0,0 +1 @@
+"\
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0022_unclosed_string_with_slash.txt b/crates/syntax/test_data/lexer/err/0022_unclosed_string_with_slash.txt
new file mode 100644
index 000000000..0914f001f
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0022_unclosed_string_with_slash.txt
@@ -0,0 +1,2 @@
+STRING 2 "\"\\"
+> error0..2 token("\"\\") msg(Missing trailing `"` symbol to terminate the string literal)
diff --git a/crates/syntax/test_data/lexer/err/0023_unclosed_string_with_slash_n.rs b/crates/syntax/test_data/lexer/err/0023_unclosed_string_with_slash_n.rs
new file mode 100644
index 000000000..a0c29b8cf
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0023_unclosed_string_with_slash_n.rs
@@ -0,0 +1 @@
+"\n
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0023_unclosed_string_with_slash_n.txt b/crates/syntax/test_data/lexer/err/0023_unclosed_string_with_slash_n.txt
new file mode 100644
index 000000000..5674b55fd
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0023_unclosed_string_with_slash_n.txt
@@ -0,0 +1,2 @@
+STRING 3 "\"\\n"
+> error0..3 token("\"\\n") msg(Missing trailing `"` symbol to terminate the string literal)
diff --git a/crates/syntax/test_data/lexer/err/0024_unclosed_string_with_slash_double_quote.rs b/crates/syntax/test_data/lexer/err/0024_unclosed_string_with_slash_double_quote.rs
new file mode 100644
index 000000000..403c2d6dd
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0024_unclosed_string_with_slash_double_quote.rs
@@ -0,0 +1 @@
+"\"
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0024_unclosed_string_with_slash_double_quote.txt b/crates/syntax/test_data/lexer/err/0024_unclosed_string_with_slash_double_quote.txt
new file mode 100644
index 000000000..4c9a774e4
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0024_unclosed_string_with_slash_double_quote.txt
@@ -0,0 +1,2 @@
+STRING 3 "\"\\\""
+> error0..3 token("\"\\\"") msg(Missing trailing `"` symbol to terminate the string literal)
diff --git a/crates/syntax/test_data/lexer/err/0025_unclosed_byte_string_at_eof.rs b/crates/syntax/test_data/lexer/err/0025_unclosed_byte_string_at_eof.rs
new file mode 100644
index 000000000..36f4f4321
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0025_unclosed_byte_string_at_eof.rs
@@ -0,0 +1 @@
+b"
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0025_unclosed_byte_string_at_eof.txt b/crates/syntax/test_data/lexer/err/0025_unclosed_byte_string_at_eof.txt
new file mode 100644
index 000000000..04e6b0aa4
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0025_unclosed_byte_string_at_eof.txt
@@ -0,0 +1,2 @@
+BYTE_STRING 2 "b\""
+> error0..2 token("b\"") msg(Missing trailing `"` symbol to terminate the byte string literal)
diff --git a/crates/syntax/test_data/lexer/err/0026_unclosed_byte_string_with_ferris.rs b/crates/syntax/test_data/lexer/err/0026_unclosed_byte_string_with_ferris.rs
new file mode 100644
index 000000000..3c23a0372
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0026_unclosed_byte_string_with_ferris.rs
@@ -0,0 +1 @@
+b"🦀
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0026_unclosed_byte_string_with_ferris.txt b/crates/syntax/test_data/lexer/err/0026_unclosed_byte_string_with_ferris.txt
new file mode 100644
index 000000000..0576a0609
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0026_unclosed_byte_string_with_ferris.txt
@@ -0,0 +1,2 @@
+BYTE_STRING 6 "b\"🦀"
+> error0..6 token("b\"🦀") msg(Missing trailing `"` symbol to terminate the byte string literal)
diff --git a/crates/syntax/test_data/lexer/err/0027_unclosed_byte_string_with_ascii_escape.rs b/crates/syntax/test_data/lexer/err/0027_unclosed_byte_string_with_ascii_escape.rs
new file mode 100644
index 000000000..836c112c1
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0027_unclosed_byte_string_with_ascii_escape.rs
@@ -0,0 +1 @@
+b"\x7f
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0027_unclosed_byte_string_with_ascii_escape.txt b/crates/syntax/test_data/lexer/err/0027_unclosed_byte_string_with_ascii_escape.txt
new file mode 100644
index 000000000..541a013d8
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0027_unclosed_byte_string_with_ascii_escape.txt
@@ -0,0 +1,2 @@
+BYTE_STRING 6 "b\"\\x7f"
+> error0..6 token("b\"\\x7f") msg(Missing trailing `"` symbol to terminate the byte string literal)
diff --git a/crates/syntax/test_data/lexer/err/0028_unclosed_byte_string_with_unicode_escape.rs b/crates/syntax/test_data/lexer/err/0028_unclosed_byte_string_with_unicode_escape.rs
new file mode 100644
index 000000000..1c6df1d00
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0028_unclosed_byte_string_with_unicode_escape.rs
@@ -0,0 +1 @@
+b"\u{20AA}
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0028_unclosed_byte_string_with_unicode_escape.txt b/crates/syntax/test_data/lexer/err/0028_unclosed_byte_string_with_unicode_escape.txt
new file mode 100644
index 000000000..71b0fb211
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0028_unclosed_byte_string_with_unicode_escape.txt
@@ -0,0 +1,2 @@
+BYTE_STRING 10 "b\"\\u{20AA}"
+> error0..10 token("b\"\\u{20AA}") msg(Missing trailing `"` symbol to terminate the byte string literal)
diff --git a/crates/syntax/test_data/lexer/err/0029_unclosed_byte_string_with_space.rs b/crates/syntax/test_data/lexer/err/0029_unclosed_byte_string_with_space.rs
new file mode 100644
index 000000000..d6898541e
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0029_unclosed_byte_string_with_space.rs
@@ -0,0 +1 @@
+b" 
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0029_unclosed_byte_string_with_space.txt b/crates/syntax/test_data/lexer/err/0029_unclosed_byte_string_with_space.txt
new file mode 100644
index 000000000..bd5058bc1
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0029_unclosed_byte_string_with_space.txt
@@ -0,0 +1,2 @@
+BYTE_STRING 3 "b\" "
+> error0..3 token("b\" ") msg(Missing trailing `"` symbol to terminate the byte string literal)
diff --git a/crates/syntax/test_data/lexer/err/0030_unclosed_byte_string_with_slash.rs b/crates/syntax/test_data/lexer/err/0030_unclosed_byte_string_with_slash.rs
new file mode 100644
index 000000000..cce661538
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0030_unclosed_byte_string_with_slash.rs
@@ -0,0 +1 @@
+b"\
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0030_unclosed_byte_string_with_slash.txt b/crates/syntax/test_data/lexer/err/0030_unclosed_byte_string_with_slash.txt
new file mode 100644
index 000000000..7f94f10ba
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0030_unclosed_byte_string_with_slash.txt
@@ -0,0 +1,2 @@
+BYTE_STRING 3 "b\"\\"
+> error0..3 token("b\"\\") msg(Missing trailing `"` symbol to terminate the byte string literal)
diff --git a/crates/syntax/test_data/lexer/err/0031_unclosed_byte_string_with_slash_n.rs b/crates/syntax/test_data/lexer/err/0031_unclosed_byte_string_with_slash_n.rs
new file mode 100644
index 000000000..5e680aabb
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0031_unclosed_byte_string_with_slash_n.rs
@@ -0,0 +1 @@
+b"\n
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0031_unclosed_byte_string_with_slash_n.txt b/crates/syntax/test_data/lexer/err/0031_unclosed_byte_string_with_slash_n.txt
new file mode 100644
index 000000000..9c3c089d7
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0031_unclosed_byte_string_with_slash_n.txt
@@ -0,0 +1,2 @@
+BYTE_STRING 4 "b\"\\n"
+> error0..4 token("b\"\\n") msg(Missing trailing `"` symbol to terminate the byte string literal)
diff --git a/crates/syntax/test_data/lexer/err/0032_unclosed_byte_string_with_slash_double_quote.rs b/crates/syntax/test_data/lexer/err/0032_unclosed_byte_string_with_slash_double_quote.rs
new file mode 100644
index 000000000..f2ff58ba9
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0032_unclosed_byte_string_with_slash_double_quote.rs
@@ -0,0 +1 @@
+b"\"
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0032_unclosed_byte_string_with_slash_double_quote.txt b/crates/syntax/test_data/lexer/err/0032_unclosed_byte_string_with_slash_double_quote.txt
new file mode 100644
index 000000000..884b12c8e
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0032_unclosed_byte_string_with_slash_double_quote.txt
@@ -0,0 +1,2 @@
+BYTE_STRING 4 "b\"\\\""
+> error0..4 token("b\"\\\"") msg(Missing trailing `"` symbol to terminate the byte string literal)
diff --git a/crates/syntax/test_data/lexer/err/0033_unclosed_raw_string_at_eof.rs b/crates/syntax/test_data/lexer/err/0033_unclosed_raw_string_at_eof.rs
new file mode 100644
index 000000000..557c59b62
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0033_unclosed_raw_string_at_eof.rs
@@ -0,0 +1 @@
+r##"
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0033_unclosed_raw_string_at_eof.txt b/crates/syntax/test_data/lexer/err/0033_unclosed_raw_string_at_eof.txt
new file mode 100644
index 000000000..6fd59ccc0
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0033_unclosed_raw_string_at_eof.txt
@@ -0,0 +1,2 @@
+RAW_STRING 4 "r##\""
+> error0..4 token("r##\"") msg(Missing trailing `"` with `#` symbols to terminate the raw string literal)
diff --git a/crates/syntax/test_data/lexer/err/0034_unclosed_raw_string_with_ferris.rs b/crates/syntax/test_data/lexer/err/0034_unclosed_raw_string_with_ferris.rs
new file mode 100644
index 000000000..bd046e4bb
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0034_unclosed_raw_string_with_ferris.rs
@@ -0,0 +1 @@
+r##"🦀
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0034_unclosed_raw_string_with_ferris.txt b/crates/syntax/test_data/lexer/err/0034_unclosed_raw_string_with_ferris.txt
new file mode 100644
index 000000000..8d9ca0e8f
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0034_unclosed_raw_string_with_ferris.txt
@@ -0,0 +1,2 @@
+RAW_STRING 8 "r##\"🦀"
+> error0..8 token("r##\"🦀") msg(Missing trailing `"` with `#` symbols to terminate the raw string literal)
diff --git a/crates/syntax/test_data/lexer/err/0035_unclosed_raw_string_with_ascii_escape.rs b/crates/syntax/test_data/lexer/err/0035_unclosed_raw_string_with_ascii_escape.rs
new file mode 100644
index 000000000..5bec883dc
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0035_unclosed_raw_string_with_ascii_escape.rs
@@ -0,0 +1 @@
+r##"\x7f
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0035_unclosed_raw_string_with_ascii_escape.txt b/crates/syntax/test_data/lexer/err/0035_unclosed_raw_string_with_ascii_escape.txt
new file mode 100644
index 000000000..a906380c7
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0035_unclosed_raw_string_with_ascii_escape.txt
@@ -0,0 +1,2 @@
+RAW_STRING 8 "r##\"\\x7f"
+> error0..8 token("r##\"\\x7f") msg(Missing trailing `"` with `#` symbols to terminate the raw string literal)
diff --git a/crates/syntax/test_data/lexer/err/0036_unclosed_raw_string_with_unicode_escape.rs b/crates/syntax/test_data/lexer/err/0036_unclosed_raw_string_with_unicode_escape.rs
new file mode 100644
index 000000000..bf05c3913
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0036_unclosed_raw_string_with_unicode_escape.rs
@@ -0,0 +1 @@
+r##"\u{20AA}
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0036_unclosed_raw_string_with_unicode_escape.txt b/crates/syntax/test_data/lexer/err/0036_unclosed_raw_string_with_unicode_escape.txt
new file mode 100644
index 000000000..5667c6149
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0036_unclosed_raw_string_with_unicode_escape.txt
@@ -0,0 +1,2 @@
+RAW_STRING 12 "r##\"\\u{20AA}"
+> error0..12 token("r##\"\\u{20AA}") msg(Missing trailing `"` with `#` symbols to terminate the raw string literal)
diff --git a/crates/syntax/test_data/lexer/err/0037_unclosed_raw_string_with_space.rs b/crates/syntax/test_data/lexer/err/0037_unclosed_raw_string_with_space.rs
new file mode 100644
index 000000000..f104bae4f
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0037_unclosed_raw_string_with_space.rs
@@ -0,0 +1 @@
+r##" 
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0037_unclosed_raw_string_with_space.txt b/crates/syntax/test_data/lexer/err/0037_unclosed_raw_string_with_space.txt
new file mode 100644
index 000000000..141c8268e
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0037_unclosed_raw_string_with_space.txt
@@ -0,0 +1,2 @@
+RAW_STRING 5 "r##\" "
+> error0..5 token("r##\" ") msg(Missing trailing `"` with `#` symbols to terminate the raw string literal)
diff --git a/crates/syntax/test_data/lexer/err/0038_unclosed_raw_string_with_slash.rs b/crates/syntax/test_data/lexer/err/0038_unclosed_raw_string_with_slash.rs
new file mode 100644
index 000000000..9242077b8
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0038_unclosed_raw_string_with_slash.rs
@@ -0,0 +1 @@
+r##"\
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0038_unclosed_raw_string_with_slash.txt b/crates/syntax/test_data/lexer/err/0038_unclosed_raw_string_with_slash.txt
new file mode 100644
index 000000000..f61d4cc91
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0038_unclosed_raw_string_with_slash.txt
@@ -0,0 +1,2 @@
+RAW_STRING 5 "r##\"\\"
+> error0..5 token("r##\"\\") msg(Missing trailing `"` with `#` symbols to terminate the raw string literal)
diff --git a/crates/syntax/test_data/lexer/err/0039_unclosed_raw_string_with_slash_n.rs b/crates/syntax/test_data/lexer/err/0039_unclosed_raw_string_with_slash_n.rs
new file mode 100644
index 000000000..db1c16f2b
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0039_unclosed_raw_string_with_slash_n.rs
@@ -0,0 +1 @@
+r##"\n
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0039_unclosed_raw_string_with_slash_n.txt b/crates/syntax/test_data/lexer/err/0039_unclosed_raw_string_with_slash_n.txt
new file mode 100644
index 000000000..12e2c0fc0
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0039_unclosed_raw_string_with_slash_n.txt
@@ -0,0 +1,2 @@
+RAW_STRING 6 "r##\"\\n"
+> error0..6 token("r##\"\\n") msg(Missing trailing `"` with `#` symbols to terminate the raw string literal)
diff --git a/crates/syntax/test_data/lexer/err/0040_unclosed_raw_byte_string_at_eof.rs b/crates/syntax/test_data/lexer/err/0040_unclosed_raw_byte_string_at_eof.rs
new file mode 100644
index 000000000..ae5bae622
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0040_unclosed_raw_byte_string_at_eof.rs
@@ -0,0 +1 @@
+br##"
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0040_unclosed_raw_byte_string_at_eof.txt b/crates/syntax/test_data/lexer/err/0040_unclosed_raw_byte_string_at_eof.txt
new file mode 100644
index 000000000..fe12cb5fc
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0040_unclosed_raw_byte_string_at_eof.txt
@@ -0,0 +1,2 @@
+RAW_BYTE_STRING 5 "br##\""
+> error0..5 token("br##\"") msg(Missing trailing `"` with `#` symbols to terminate the raw byte string literal)
diff --git a/crates/syntax/test_data/lexer/err/0041_unclosed_raw_byte_string_with_ferris.rs b/crates/syntax/test_data/lexer/err/0041_unclosed_raw_byte_string_with_ferris.rs
new file mode 100644
index 000000000..9ef01207a
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0041_unclosed_raw_byte_string_with_ferris.rs
@@ -0,0 +1 @@
+br##"🦀
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0041_unclosed_raw_byte_string_with_ferris.txt b/crates/syntax/test_data/lexer/err/0041_unclosed_raw_byte_string_with_ferris.txt
new file mode 100644
index 000000000..5be2a7861
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0041_unclosed_raw_byte_string_with_ferris.txt
@@ -0,0 +1,2 @@
+RAW_BYTE_STRING 9 "br##\"🦀"
+> error0..9 token("br##\"🦀") msg(Missing trailing `"` with `#` symbols to terminate the raw byte string literal)
diff --git a/crates/syntax/test_data/lexer/err/0042_unclosed_raw_byte_string_with_ascii_escape.rs b/crates/syntax/test_data/lexer/err/0042_unclosed_raw_byte_string_with_ascii_escape.rs
new file mode 100644
index 000000000..d50270afe
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0042_unclosed_raw_byte_string_with_ascii_escape.rs
@@ -0,0 +1 @@
+br##"\x7f
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0042_unclosed_raw_byte_string_with_ascii_escape.txt b/crates/syntax/test_data/lexer/err/0042_unclosed_raw_byte_string_with_ascii_escape.txt
new file mode 100644
index 000000000..6cbe08d07
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0042_unclosed_raw_byte_string_with_ascii_escape.txt
@@ -0,0 +1,2 @@
+RAW_BYTE_STRING 9 "br##\"\\x7f"
+> error0..9 token("br##\"\\x7f") msg(Missing trailing `"` with `#` symbols to terminate the raw byte string literal)
diff --git a/crates/syntax/test_data/lexer/err/0043_unclosed_raw_byte_string_with_unicode_escape.rs b/crates/syntax/test_data/lexer/err/0043_unclosed_raw_byte_string_with_unicode_escape.rs
new file mode 100644
index 000000000..90e299a1a
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0043_unclosed_raw_byte_string_with_unicode_escape.rs
@@ -0,0 +1 @@
+br##"\u{20AA}
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0043_unclosed_raw_byte_string_with_unicode_escape.txt b/crates/syntax/test_data/lexer/err/0043_unclosed_raw_byte_string_with_unicode_escape.txt
new file mode 100644
index 000000000..f56a4f984
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0043_unclosed_raw_byte_string_with_unicode_escape.txt
@@ -0,0 +1,2 @@
+RAW_BYTE_STRING 13 "br##\"\\u{20AA}"
+> error0..13 token("br##\"\\u{20AA}") msg(Missing trailing `"` with `#` symbols to terminate the raw byte string literal)
diff --git a/crates/syntax/test_data/lexer/err/0044_unclosed_raw_byte_string_with_space.rs b/crates/syntax/test_data/lexer/err/0044_unclosed_raw_byte_string_with_space.rs
new file mode 100644
index 000000000..14c602fd2
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0044_unclosed_raw_byte_string_with_space.rs
@@ -0,0 +1 @@
+br##" 
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0044_unclosed_raw_byte_string_with_space.txt b/crates/syntax/test_data/lexer/err/0044_unclosed_raw_byte_string_with_space.txt
new file mode 100644
index 000000000..3d32ce34e
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0044_unclosed_raw_byte_string_with_space.txt
@@ -0,0 +1,2 @@
+RAW_BYTE_STRING 6 "br##\" "
+> error0..6 token("br##\" ") msg(Missing trailing `"` with `#` symbols to terminate the raw byte string literal)
diff --git a/crates/syntax/test_data/lexer/err/0045_unclosed_raw_byte_string_with_slash.rs b/crates/syntax/test_data/lexer/err/0045_unclosed_raw_byte_string_with_slash.rs
new file mode 100644
index 000000000..0b3c015d7
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0045_unclosed_raw_byte_string_with_slash.rs
@@ -0,0 +1 @@
+br##"\
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0045_unclosed_raw_byte_string_with_slash.txt b/crates/syntax/test_data/lexer/err/0045_unclosed_raw_byte_string_with_slash.txt
new file mode 100644
index 000000000..320fea177
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0045_unclosed_raw_byte_string_with_slash.txt
@@ -0,0 +1,2 @@
+RAW_BYTE_STRING 6 "br##\"\\"
+> error0..6 token("br##\"\\") msg(Missing trailing `"` with `#` symbols to terminate the raw byte string literal)
diff --git a/crates/syntax/test_data/lexer/err/0046_unclosed_raw_byte_string_with_slash_n.rs b/crates/syntax/test_data/lexer/err/0046_unclosed_raw_byte_string_with_slash_n.rs
new file mode 100644
index 000000000..0d8b0e7ab
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0046_unclosed_raw_byte_string_with_slash_n.rs
@@ -0,0 +1 @@
+br##"\n
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0046_unclosed_raw_byte_string_with_slash_n.txt b/crates/syntax/test_data/lexer/err/0046_unclosed_raw_byte_string_with_slash_n.txt
new file mode 100644
index 000000000..b3a56380c
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0046_unclosed_raw_byte_string_with_slash_n.txt
@@ -0,0 +1,2 @@
+RAW_BYTE_STRING 7 "br##\"\\n"
+> error0..7 token("br##\"\\n") msg(Missing trailing `"` with `#` symbols to terminate the raw byte string literal)
diff --git a/crates/syntax/test_data/lexer/err/0047_unstarted_raw_string_at_eof.rs b/crates/syntax/test_data/lexer/err/0047_unstarted_raw_string_at_eof.rs
new file mode 100644
index 000000000..eddf8d080
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0047_unstarted_raw_string_at_eof.rs
@@ -0,0 +1 @@
+r##
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0047_unstarted_raw_string_at_eof.txt b/crates/syntax/test_data/lexer/err/0047_unstarted_raw_string_at_eof.txt
new file mode 100644
index 000000000..5af1e2d97
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0047_unstarted_raw_string_at_eof.txt
@@ -0,0 +1,2 @@
+RAW_STRING 3 "r##"
+> error0..3 token("r##") msg(Missing `"` symbol after `#` symbols to begin the raw string literal)
diff --git a/crates/syntax/test_data/lexer/err/0048_unstarted_raw_byte_string_at_eof.rs b/crates/syntax/test_data/lexer/err/0048_unstarted_raw_byte_string_at_eof.rs
new file mode 100644
index 000000000..7e8cadf4f
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0048_unstarted_raw_byte_string_at_eof.rs
@@ -0,0 +1 @@
+br##
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0048_unstarted_raw_byte_string_at_eof.txt b/crates/syntax/test_data/lexer/err/0048_unstarted_raw_byte_string_at_eof.txt
new file mode 100644
index 000000000..aec7afd92
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0048_unstarted_raw_byte_string_at_eof.txt
@@ -0,0 +1,2 @@
+RAW_BYTE_STRING 4 "br##"
+> error0..4 token("br##") msg(Missing `"` symbol after `#` symbols to begin the raw byte string literal)
diff --git a/crates/syntax/test_data/lexer/err/0049_unstarted_raw_string_with_ascii.rs b/crates/syntax/test_data/lexer/err/0049_unstarted_raw_string_with_ascii.rs
new file mode 100644
index 000000000..534668a9b
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0049_unstarted_raw_string_with_ascii.rs
@@ -0,0 +1 @@
+r## I lack a quote!
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0049_unstarted_raw_string_with_ascii.txt b/crates/syntax/test_data/lexer/err/0049_unstarted_raw_string_with_ascii.txt
new file mode 100644
index 000000000..e22fe5374
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0049_unstarted_raw_string_with_ascii.txt
@@ -0,0 +1,10 @@
+RAW_STRING 4 "r## "
+IDENT 1 "I"
+WHITESPACE 1 " "
+IDENT 4 "lack"
+WHITESPACE 1 " "
+IDENT 1 "a"
+WHITESPACE 1 " "
+IDENT 5 "quote"
+BANG 1 "!"
+> error0..4 token("r## ") msg(Missing `"` symbol after `#` symbols to begin the raw string literal)
diff --git a/crates/syntax/test_data/lexer/err/0050_unstarted_raw_byte_string_with_ascii.rs b/crates/syntax/test_data/lexer/err/0050_unstarted_raw_byte_string_with_ascii.rs
new file mode 100644
index 000000000..d9b55455a
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0050_unstarted_raw_byte_string_with_ascii.rs
@@ -0,0 +1 @@
+br## I lack a quote!
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0050_unstarted_raw_byte_string_with_ascii.txt b/crates/syntax/test_data/lexer/err/0050_unstarted_raw_byte_string_with_ascii.txt
new file mode 100644
index 000000000..d74ea4c27
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0050_unstarted_raw_byte_string_with_ascii.txt
@@ -0,0 +1,10 @@
+RAW_BYTE_STRING 5 "br## "
+IDENT 1 "I"
+WHITESPACE 1 " "
+IDENT 4 "lack"
+WHITESPACE 1 " "
+IDENT 1 "a"
+WHITESPACE 1 " "
+IDENT 5 "quote"
+BANG 1 "!"
+> error0..5 token("br## ") msg(Missing `"` symbol after `#` symbols to begin the raw byte string literal)
diff --git a/crates/syntax/test_data/lexer/err/0051_unclosed_block_comment_at_eof.rs b/crates/syntax/test_data/lexer/err/0051_unclosed_block_comment_at_eof.rs
new file mode 100644
index 000000000..22e83649f
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0051_unclosed_block_comment_at_eof.rs
@@ -0,0 +1 @@
+/*
+\ No newline at end of file
diff --git a/crates/syntax/test_data/lexer/err/0051_unclosed_block_comment_at_eof.txt b/crates/syntax/test_data/lexer/err/0051_unclosed_block_comment_at_eof.txt
new file mode 100644
index 000000000..2a256e9df
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0051_unclosed_block_comment_at_eof.txt
@@ -0,0 +1,2 @@
+COMMENT 2 "/*"
+> error0..2 token("/*") msg(Missing trailing `*/` symbols to terminate the block comment)
diff --git a/crates/syntax/test_data/lexer/err/0052_unclosed_block_comment_with_content.rs b/crates/syntax/test_data/lexer/err/0052_unclosed_block_comment_with_content.rs
new file mode 100644
index 000000000..c45c2844d
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0052_unclosed_block_comment_with_content.rs
@@ -0,0 +1 @@
+/* comment
diff --git a/crates/syntax/test_data/lexer/err/0052_unclosed_block_comment_with_content.txt b/crates/syntax/test_data/lexer/err/0052_unclosed_block_comment_with_content.txt
new file mode 100644
index 000000000..8e8490302
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0052_unclosed_block_comment_with_content.txt
@@ -0,0 +1,2 @@
+COMMENT 11 "/* comment\n"
+> error0..11 token("/* comment\n") msg(Missing trailing `*/` symbols to terminate the block comment)
diff --git a/crates/syntax/test_data/lexer/err/0053_unclosed_nested_block_comment_entirely.rs b/crates/syntax/test_data/lexer/err/0053_unclosed_nested_block_comment_entirely.rs
new file mode 100644
index 000000000..3fcfc9660
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0053_unclosed_nested_block_comment_entirely.rs
@@ -0,0 +1 @@
+/* /* /*
diff --git a/crates/syntax/test_data/lexer/err/0053_unclosed_nested_block_comment_entirely.txt b/crates/syntax/test_data/lexer/err/0053_unclosed_nested_block_comment_entirely.txt
new file mode 100644
index 000000000..b7d28fc05
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0053_unclosed_nested_block_comment_entirely.txt
@@ -0,0 +1,2 @@
+COMMENT 9 "/* /* /*\n"
+> error0..9 token("/* /* /*\n") msg(Missing trailing `*/` symbols to terminate the block comment)
diff --git a/crates/syntax/test_data/lexer/err/0054_unclosed_nested_block_comment_partially.rs b/crates/syntax/test_data/lexer/err/0054_unclosed_nested_block_comment_partially.rs
new file mode 100644
index 000000000..26c898f01
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0054_unclosed_nested_block_comment_partially.rs
@@ -0,0 +1 @@
+/** /*! /* comment */ */
diff --git a/crates/syntax/test_data/lexer/err/0054_unclosed_nested_block_comment_partially.txt b/crates/syntax/test_data/lexer/err/0054_unclosed_nested_block_comment_partially.txt
new file mode 100644
index 000000000..4742d2c12
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0054_unclosed_nested_block_comment_partially.txt
@@ -0,0 +1,2 @@
+COMMENT 25 "/** /*! /* comment */ */\n"
+> error0..25 token("/** /*! /* comment */ */\n") msg(Missing trailing `*/` symbols to terminate the block comment)
diff --git a/crates/syntax/test_data/lexer/err/0055_empty_int.rs b/crates/syntax/test_data/lexer/err/0055_empty_int.rs
new file mode 100644
index 000000000..aa2a9fdca
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0055_empty_int.rs
@@ -0,0 +1,17 @@
+0b
+0o
+0x
+0b_
+0o_
+0x_
+0bnoDigit
+0onoDigit
+0xnoDigit
+0xG
+0xg
+0x_g
+0x_G
diff --git a/crates/syntax/test_data/lexer/err/0055_empty_int.txt b/crates/syntax/test_data/lexer/err/0055_empty_int.txt
new file mode 100644
index 000000000..bcd094b6e
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0055_empty_int.txt
@@ -0,0 +1,39 @@
+INT_NUMBER 2 "0b"
+WHITESPACE 1 "\n"
+INT_NUMBER 2 "0o"
+WHITESPACE 1 "\n"
+INT_NUMBER 2 "0x"
+WHITESPACE 2 "\n\n"
+INT_NUMBER 3 "0b_"
+WHITESPACE 1 "\n"
+INT_NUMBER 3 "0o_"
+WHITESPACE 1 "\n"
+INT_NUMBER 3 "0x_"
+WHITESPACE 2 "\n\n"
+INT_NUMBER 9 "0bnoDigit"
+WHITESPACE 1 "\n"
+INT_NUMBER 9 "0onoDigit"
+WHITESPACE 1 "\n"
+INT_NUMBER 9 "0xnoDigit"
+WHITESPACE 2 "\n\n"
+INT_NUMBER 3 "0xG"
+WHITESPACE 1 "\n"
+INT_NUMBER 3 "0xg"
+WHITESPACE 2 "\n\n"
+INT_NUMBER 4 "0x_g"
+WHITESPACE 1 "\n"
+INT_NUMBER 4 "0x_G"
+WHITESPACE 1 "\n"
+> error0..2 token("0b") msg(Missing digits after the integer base prefix)
+> error3..5 token("0o") msg(Missing digits after the integer base prefix)
+> error6..8 token("0x") msg(Missing digits after the integer base prefix)
+> error10..13 token("0b_") msg(Missing digits after the integer base prefix)
+> error14..17 token("0o_") msg(Missing digits after the integer base prefix)
+> error18..21 token("0x_") msg(Missing digits after the integer base prefix)
+> error23..32 token("0bnoDigit") msg(Missing digits after the integer base prefix)
+> error33..42 token("0onoDigit") msg(Missing digits after the integer base prefix)
+> error43..52 token("0xnoDigit") msg(Missing digits after the integer base prefix)
+> error54..57 token("0xG") msg(Missing digits after the integer base prefix)
+> error58..61 token("0xg") msg(Missing digits after the integer base prefix)
+> error63..67 token("0x_g") msg(Missing digits after the integer base prefix)
+> error68..72 token("0x_G") msg(Missing digits after the integer base prefix)
diff --git a/crates/syntax/test_data/lexer/err/0056_empty_exponent.rs b/crates/syntax/test_data/lexer/err/0056_empty_exponent.rs
new file mode 100644
index 000000000..286584c88
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0056_empty_exponent.rs
@@ -0,0 +1,22 @@
+0e
+0E
+42e+
+42e-
+42E+
+42E-
+42.e+
+42.e-
+42.E+
+42.E-
+42.2e+
+42.2e-
+42.2E+
+42.2E-
+42.2e+f32
+42.2e-f32
+42.2E+f32
+42.2E-f32
diff --git a/crates/syntax/test_data/lexer/err/0056_empty_exponent.txt b/crates/syntax/test_data/lexer/err/0056_empty_exponent.txt
new file mode 100644
index 000000000..6a645a6a4
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0056_empty_exponent.txt
@@ -0,0 +1,62 @@
+FLOAT_NUMBER 2 "0e"
+WHITESPACE 1 "\n"
+FLOAT_NUMBER 2 "0E"
+WHITESPACE 2 "\n\n"
+FLOAT_NUMBER 4 "42e+"
+WHITESPACE 1 "\n"
+FLOAT_NUMBER 4 "42e-"
+WHITESPACE 1 "\n"
+FLOAT_NUMBER 4 "42E+"
+WHITESPACE 1 "\n"
+FLOAT_NUMBER 4 "42E-"
+WHITESPACE 2 "\n\n"
+INT_NUMBER 2 "42"
+DOT 1 "."
+IDENT 1 "e"
+PLUS 1 "+"
+WHITESPACE 1 "\n"
+INT_NUMBER 2 "42"
+DOT 1 "."
+IDENT 1 "e"
+MINUS 1 "-"
+WHITESPACE 1 "\n"
+INT_NUMBER 2 "42"
+DOT 1 "."
+IDENT 1 "E"
+PLUS 1 "+"
+WHITESPACE 1 "\n"
+INT_NUMBER 2 "42"
+DOT 1 "."
+IDENT 1 "E"
+MINUS 1 "-"
+WHITESPACE 2 "\n\n"
+FLOAT_NUMBER 6 "42.2e+"
+WHITESPACE 1 "\n"
+FLOAT_NUMBER 6 "42.2e-"
+WHITESPACE 1 "\n"
+FLOAT_NUMBER 6 "42.2E+"
+WHITESPACE 1 "\n"
+FLOAT_NUMBER 6 "42.2E-"
+WHITESPACE 2 "\n\n"
+FLOAT_NUMBER 9 "42.2e+f32"
+WHITESPACE 1 "\n"
+FLOAT_NUMBER 9 "42.2e-f32"
+WHITESPACE 1 "\n"
+FLOAT_NUMBER 9 "42.2E+f32"
+WHITESPACE 1 "\n"
+FLOAT_NUMBER 9 "42.2E-f32"
+WHITESPACE 1 "\n"
+> error0..2 token("0e") msg(Missing digits after the exponent symbol)
+> error3..5 token("0E") msg(Missing digits after the exponent symbol)
+> error7..11 token("42e+") msg(Missing digits after the exponent symbol)
+> error12..16 token("42e-") msg(Missing digits after the exponent symbol)
+> error17..21 token("42E+") msg(Missing digits after the exponent symbol)
+> error22..26 token("42E-") msg(Missing digits after the exponent symbol)
+> error53..59 token("42.2e+") msg(Missing digits after the exponent symbol)
+> error60..66 token("42.2e-") msg(Missing digits after the exponent symbol)
+> error67..73 token("42.2E+") msg(Missing digits after the exponent symbol)
+> error74..80 token("42.2E-") msg(Missing digits after the exponent symbol)
+> error82..91 token("42.2e+f32") msg(Missing digits after the exponent symbol)
+> error92..101 token("42.2e-f32") msg(Missing digits after the exponent symbol)
+> error102..111 token("42.2E+f32") msg(Missing digits after the exponent symbol)
+> error112..121 token("42.2E-f32") msg(Missing digits after the exponent symbol)
diff --git a/crates/syntax/test_data/lexer/err/0057_lifetime_strarts_with_a_number.rs b/crates/syntax/test_data/lexer/err/0057_lifetime_strarts_with_a_number.rs
new file mode 100644
index 000000000..a7698a404
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0057_lifetime_strarts_with_a_number.rs
@@ -0,0 +1,2 @@
+'1
+'1lifetime
diff --git a/crates/syntax/test_data/lexer/err/0057_lifetime_strarts_with_a_number.txt b/crates/syntax/test_data/lexer/err/0057_lifetime_strarts_with_a_number.txt
new file mode 100644
index 000000000..e138bcebc
--- /dev/null
+++ b/crates/syntax/test_data/lexer/err/0057_lifetime_strarts_with_a_number.txt
@@ -0,0 +1,6 @@
+LIFETIME 2 "\'1"
+WHITESPACE 1 "\n"
+LIFETIME 10 "\'1lifetime"
+WHITESPACE 1 "\n"
+> error0..2 token("\'1") msg(Lifetime name cannot start with a number)
+> error3..13 token("\'1lifetime") msg(Lifetime name cannot start with a number)