diff --git a/Cargo.lock b/Cargo.lock
index d1dfed4308..4ba4083243 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2400,7 +2400,6 @@ dependencies = [
  "ruff_text_size",
  "rustc-hash",
  "static_assertions",
- "test-case",
  "tiny-keccak",
  "unicode-ident",
  "unicode_names2",
diff --git a/crates/ruff_python_parser/Cargo.toml b/crates/ruff_python_parser/Cargo.toml
index 0718e27216..a4bb8f6c50 100644
--- a/crates/ruff_python_parser/Cargo.toml
+++ b/crates/ruff_python_parser/Cargo.toml
@@ -30,7 +30,6 @@ static_assertions = "1.1.0"
 
 [dev-dependencies]
 insta = { workspace = true }
-test-case = { workspace = true }
 
 [build-dependencies]
 anyhow = { workspace = true }
diff --git a/crates/ruff_python_parser/src/lexer.rs b/crates/ruff_python_parser/src/lexer.rs
index ee1e5e14e0..689701a36c 100644
--- a/crates/ruff_python_parser/src/lexer.rs
+++ b/crates/ruff_python_parser/src/lexer.rs
@@ -1265,11 +1265,7 @@ impl<'a> LexedText<'a> {
 
 #[cfg(test)]
 mod tests {
-    use num_bigint::BigInt;
-    use ruff_python_ast::IpyEscapeKind;
-
     use insta::assert_debug_snapshot;
-    use test_case::test_case;
 
     use super::*;
 
@@ -1277,50 +1273,60 @@ mod tests {
     const MAC_EOL: &str = "\r";
     const UNIX_EOL: &str = "\n";
 
-    pub(crate) fn lex_source(source: &str) -> Vec<Tok> {
+    fn lex_source(source: &str) -> Vec<Tok> {
         let lexer = lex(source, Mode::Module);
-        lexer.map(|x| x.unwrap().0).collect()
+        lexer.map(|result| result.unwrap().0).collect()
     }
 
-    pub(crate) fn lex_jupyter_source(source: &str) -> Vec<Tok> {
+    fn lex_jupyter_source(source: &str) -> Vec<Tok> {
         let lexer = lex(source, Mode::Ipython);
         lexer.map(|x| x.unwrap().0).collect()
     }
 
-    #[test_case(UNIX_EOL)]
-    #[test_case(MAC_EOL)]
-    #[test_case(WINDOWS_EOL)]
-    fn test_ipython_escape_command_line_continuation_eol(eol: &str) {
+    fn ipython_escape_command_line_continuation_eol(eol: &str) -> Vec<Tok> {
         let source = format!("%matplotlib \\{eol}  --inline");
-        let tokens = lex_jupyter_source(&source);
-        assert_eq!(
-            tokens,
-            vec![
-                Tok::IpyEscapeCommand {
-                    value: "matplotlib   --inline".to_string(),
-                    kind: IpyEscapeKind::Magic
-                },
-                Tok::Newline
-            ]
-        );
+        lex_jupyter_source(&source)
     }
 
-    #[test_case(UNIX_EOL)]
-    #[test_case(MAC_EOL)]
-    #[test_case(WINDOWS_EOL)]
-    fn test_ipython_escape_command_line_continuation_with_eol_and_eof(eol: &str) {
+    #[test]
+    fn test_ipython_escape_command_line_continuation_unix_eol() {
+        assert_debug_snapshot!(ipython_escape_command_line_continuation_eol(UNIX_EOL));
+    }
+
+    #[test]
+    fn test_ipython_escape_command_line_continuation_mac_eol() {
+        assert_debug_snapshot!(ipython_escape_command_line_continuation_eol(MAC_EOL));
+    }
+
+    #[test]
+    fn test_ipython_escape_command_line_continuation_windows_eol() {
+        assert_debug_snapshot!(ipython_escape_command_line_continuation_eol(WINDOWS_EOL));
+    }
+
+    fn ipython_escape_command_line_continuation_with_eol_and_eof(eol: &str) -> Vec<Tok> {
         let source = format!("%matplotlib \\{eol}");
-        let tokens = lex_jupyter_source(&source);
-        assert_eq!(
-            tokens,
-            vec![
-                Tok::IpyEscapeCommand {
-                    value: "matplotlib ".to_string(),
-                    kind: IpyEscapeKind::Magic
-                },
-                Tok::Newline
-            ]
-        );
+        lex_jupyter_source(&source)
+    }
+
+    #[test]
+    fn test_ipython_escape_command_line_continuation_with_unix_eol_and_eof() {
+        assert_debug_snapshot!(ipython_escape_command_line_continuation_with_eol_and_eof(
+            UNIX_EOL
+        ));
+    }
+
+    #[test]
+    fn test_ipython_escape_command_line_continuation_with_mac_eol_and_eof() {
+        assert_debug_snapshot!(ipython_escape_command_line_continuation_with_eol_and_eof(
+            MAC_EOL
+        ));
+    }
+
+    #[test]
+    fn test_ipython_escape_command_line_continuation_with_windows_eol_and_eof() {
+        assert_debug_snapshot!(ipython_escape_command_line_continuation_with_eol_and_eof(
+            WINDOWS_EOL
+        ));
     }
 
     #[test]
@@ -1428,45 +1434,48 @@ def f(arg=%timeit a = b):
         assert_debug_snapshot!(lex_source(source));
     }
 
-    #[test_case(" foo"; "long")]
-    #[test_case("  "; "whitespace")]
-    #[test_case(" "; "single whitespace")]
-    #[test_case(""; "empty")]
-    fn test_line_comment(comment: &str) {
-        let source = format!("99232  # {comment}");
-        let tokens = lex_source(&source);
-        assert_eq!(
-            tokens,
-            vec![
-                Tok::Int {
-                    value: BigInt::from(99232)
-                },
-                Tok::Comment(format!("# {comment}")),
-                Tok::Newline
-            ]
-        );
+    #[test]
+    fn test_line_comment_long() {
+        let source = "99232  # foo".to_string();
+        assert_debug_snapshot!(lex_source(&source));
     }
 
-    #[test_case(UNIX_EOL)]
-    #[test_case(MAC_EOL)]
-    #[test_case(WINDOWS_EOL)]
-    fn test_comment_until_eol(eol: &str) {
+    #[test]
+    fn test_line_comment_whitespace() {
+        let source = "99232  #  ".to_string();
+        assert_debug_snapshot!(lex_source(&source));
+    }
+
+    #[test]
+    fn test_line_comment_single_whitespace() {
+        let source = "99232  # ".to_string();
+        assert_debug_snapshot!(lex_source(&source));
+    }
+
+    #[test]
+    fn test_line_comment_empty() {
+        let source = "99232  #".to_string();
+        assert_debug_snapshot!(lex_source(&source));
+    }
+
+    fn comment_until_eol(eol: &str) -> Vec<Tok> {
         let source = format!("123  # Foo{eol}456");
-        let tokens = lex_source(&source);
-        assert_eq!(
-            tokens,
-            vec![
-                Tok::Int {
-                    value: BigInt::from(123)
-                },
-                Tok::Comment("# Foo".to_string()),
-                Tok::Newline,
-                Tok::Int {
-                    value: BigInt::from(456)
-                },
-                Tok::Newline,
-            ]
-        );
+        lex_source(&source)
+    }
+
+    #[test]
+    fn test_comment_until_unix_eol() {
+        assert_debug_snapshot!(comment_until_eol(UNIX_EOL));
+    }
+
+    #[test]
+    fn test_comment_until_mac_eol() {
+        assert_debug_snapshot!(comment_until_eol(MAC_EOL));
+    }
+
+    #[test]
+    fn test_comment_until_windows_eol() {
+        assert_debug_snapshot!(comment_until_eol(WINDOWS_EOL));
     }
 
     #[test]
@@ -1475,115 +1484,67 @@ def f(arg=%timeit a = b):
         assert_debug_snapshot!(lex_source(source));
     }
 
-    #[test_case(UNIX_EOL)]
-    #[test_case(MAC_EOL)]
-    #[test_case(WINDOWS_EOL)]
-    fn test_indentation_with_eol(eol: &str) {
+    fn indentation_with_eol(eol: &str) -> Vec<Tok> {
         let source = format!("def foo():{eol}    return 99{eol}{eol}");
-        let tokens = lex_source(&source);
-        assert_eq!(
-            tokens,
-            vec![
-                Tok::Def,
-                Tok::Name {
-                    name: String::from("foo"),
-                },
-                Tok::Lpar,
-                Tok::Rpar,
-                Tok::Colon,
-                Tok::Newline,
-                Tok::Indent,
-                Tok::Return,
-                Tok::Int {
-                    value: BigInt::from(99)
-                },
-                Tok::Newline,
-                Tok::NonLogicalNewline,
-                Tok::Dedent,
-            ]
-        );
+        lex_source(&source)
     }
 
-    #[test_case(UNIX_EOL)]
-    #[test_case(MAC_EOL)]
-    #[test_case(WINDOWS_EOL)]
-    fn test_double_dedent_with_eol(eol: &str) {
+    #[test]
+    fn test_indentation_with_unix_eol() {
+        assert_debug_snapshot!(indentation_with_eol(UNIX_EOL));
+    }
+
+    #[test]
+    fn test_indentation_with_mac_eol() {
+        assert_debug_snapshot!(indentation_with_eol(MAC_EOL));
+    }
+
+    #[test]
+    fn test_indentation_with_windows_eol() {
+        assert_debug_snapshot!(indentation_with_eol(WINDOWS_EOL));
+    }
+
+    fn double_dedent_with_eol(eol: &str) -> Vec<Tok> {
         let source = format!("def foo():{eol} if x:{eol}{eol}  return 99{eol}{eol}");
-        let tokens = lex_source(&source);
-        assert_eq!(
-            tokens,
-            vec![
-                Tok::Def,
-                Tok::Name {
-                    name: String::from("foo"),
-                },
-                Tok::Lpar,
-                Tok::Rpar,
-                Tok::Colon,
-                Tok::Newline,
-                Tok::Indent,
-                Tok::If,
-                Tok::Name {
-                    name: String::from("x"),
-                },
-                Tok::Colon,
-                Tok::Newline,
-                Tok::NonLogicalNewline,
-                Tok::Indent,
-                Tok::Return,
-                Tok::Int {
-                    value: BigInt::from(99)
-                },
-                Tok::Newline,
-                Tok::NonLogicalNewline,
-                Tok::Dedent,
-                Tok::Dedent,
-            ]
-        );
+        lex_source(&source)
     }
 
-    #[test_case(UNIX_EOL)]
-    #[test_case(MAC_EOL)]
-    #[test_case(WINDOWS_EOL)]
-    fn test_double_dedent_with_tabs(eol: &str) {
+    #[test]
+    fn test_double_dedent_with_unix_eol() {
+        assert_debug_snapshot!(double_dedent_with_eol(UNIX_EOL));
+    }
+
+    #[test]
+    fn test_double_dedent_with_mac_eol() {
+        assert_debug_snapshot!(double_dedent_with_eol(MAC_EOL));
+    }
+
+    #[test]
+    fn test_double_dedent_with_windows_eol() {
+        assert_debug_snapshot!(double_dedent_with_eol(WINDOWS_EOL));
+    }
+
+    fn double_dedent_with_tabs_eol(eol: &str) -> Vec<Tok> {
         let source = format!("def foo():{eol}\tif x:{eol}{eol}\t\t return 99{eol}{eol}");
-        let tokens = lex_source(&source);
-        assert_eq!(
-            tokens,
-            vec![
-                Tok::Def,
-                Tok::Name {
-                    name: String::from("foo"),
-                },
-                Tok::Lpar,
-                Tok::Rpar,
-                Tok::Colon,
-                Tok::Newline,
-                Tok::Indent,
-                Tok::If,
-                Tok::Name {
-                    name: String::from("x"),
-                },
-                Tok::Colon,
-                Tok::Newline,
-                Tok::NonLogicalNewline,
-                Tok::Indent,
-                Tok::Return,
-                Tok::Int {
-                    value: BigInt::from(99)
-                },
-                Tok::Newline,
-                Tok::NonLogicalNewline,
-                Tok::Dedent,
-                Tok::Dedent,
-            ]
-        );
+        lex_source(&source)
     }
 
-    #[test_case(UNIX_EOL)]
-    #[test_case(MAC_EOL)]
-    #[test_case(WINDOWS_EOL)]
-    fn test_newline_in_brackets(eol: &str) {
+    #[test]
+    fn test_double_dedent_with_tabs_unix_eol() {
+        assert_debug_snapshot!(double_dedent_with_tabs_eol(UNIX_EOL));
+    }
+
+    #[test]
+    fn test_double_dedent_with_tabs_mac_eol() {
+        assert_debug_snapshot!(double_dedent_with_tabs_eol(MAC_EOL));
+    }
+
+    #[test]
+    fn test_double_dedent_with_tabs_windows_eol() {
+        assert_debug_snapshot!(double_dedent_with_tabs_eol(WINDOWS_EOL));
+    }
+
+    fn newline_in_brackets_eol(eol: &str) -> Vec<Tok> {
         let source = r"x = [
 
     1,2
@@ -1595,59 +1556,22 @@ def f(arg=%timeit a = b):
 7}]
 "
         .replace('\n', eol);
-        let tokens = lex_source(&source);
-        assert_eq!(
-            tokens,
-            vec![
-                Tok::Name {
-                    name: String::from("x"),
-                },
-                Tok::Equal,
-                Tok::Lsqb,
-                Tok::NonLogicalNewline,
-                Tok::NonLogicalNewline,
-                Tok::Int {
-                    value: BigInt::from(1)
-                },
-                Tok::Comma,
-                Tok::Int {
-                    value: BigInt::from(2)
-                },
-                Tok::NonLogicalNewline,
-                Tok::Comma,
-                Tok::Lpar,
-                Tok::Int {
-                    value: BigInt::from(3)
-                },
-                Tok::Comma,
-                Tok::NonLogicalNewline,
-                Tok::Int {
-                    value: BigInt::from(4)
-                },
-                Tok::Comma,
-                Tok::NonLogicalNewline,
-                Tok::Rpar,
-                Tok::Comma,
-                Tok::Lbrace,
-                Tok::NonLogicalNewline,
-                Tok::Int {
-                    value: BigInt::from(5)
-                },
-                Tok::Comma,
-                Tok::NonLogicalNewline,
-                Tok::Int {
-                    value: BigInt::from(6)
-                },
-                Tok::Comma,
-                // Continuation here - no NonLogicalNewline.
-                Tok::Int {
-                    value: BigInt::from(7)
-                },
-                Tok::Rbrace,
-                Tok::Rsqb,
-                Tok::Newline,
-            ]
-        );
+        lex_source(&source)
+    }
+
+    #[test]
+    fn test_newline_in_brackets_unix_eol() {
+        assert_debug_snapshot!(newline_in_brackets_eol(UNIX_EOL));
+    }
+
+    #[test]
+    fn test_newline_in_brackets_mac_eol() {
+        assert_debug_snapshot!(newline_in_brackets_eol(MAC_EOL));
+    }
+
+    #[test]
+    fn test_newline_in_brackets_windows_eol() {
+        assert_debug_snapshot!(newline_in_brackets_eol(WINDOWS_EOL));
     }
 
     #[test]
@@ -1680,60 +1604,50 @@ def f(arg=%timeit a = b):
         assert_debug_snapshot!(lex_source(source));
     }
 
-    #[test_case(UNIX_EOL)]
-    #[test_case(MAC_EOL)]
-    #[test_case(WINDOWS_EOL)]
-    fn test_string_continuation_with_eol(eol: &str) {
+    fn string_continuation_with_eol(eol: &str) -> Vec<Tok> {
         let source = format!("\"abc\\{eol}def\"");
-        let tokens = lex_source(&source);
+        lex_source(&source)
+    }
 
-        assert_eq!(
-            tokens,
-            vec![
-                Tok::String {
-                    value: format!("abc\\{eol}def"),
-                    kind: StringKind::String,
-                    triple_quoted: false,
-                },
-                Tok::Newline,
-            ]
-        );
+    #[test]
+    fn test_string_continuation_with_unix_eol() {
+        assert_debug_snapshot!(string_continuation_with_eol(UNIX_EOL));
+    }
+
+    #[test]
+    fn test_string_continuation_with_mac_eol() {
+        assert_debug_snapshot!(string_continuation_with_eol(MAC_EOL));
+    }
+
+    #[test]
+    fn test_string_continuation_with_windows_eol() {
+        assert_debug_snapshot!(string_continuation_with_eol(WINDOWS_EOL));
     }
 
     #[test]
     fn test_escape_unicode_name() {
         let source = r#""\N{EN SPACE}""#;
-        let tokens = lex_source(source);
-        assert_eq!(
-            tokens,
-            vec![
-                Tok::String {
-                    value: r"\N{EN SPACE}".to_string(),
-                    kind: StringKind::String,
-                    triple_quoted: false,
-                },
-                Tok::Newline
-            ]
-        );
+        assert_debug_snapshot!(lex_source(source));
     }
 
-    #[test_case(UNIX_EOL)]
-    #[test_case(MAC_EOL)]
-    #[test_case(WINDOWS_EOL)]
-    fn test_triple_quoted(eol: &str) {
+    fn triple_quoted_eol(eol: &str) -> Vec<Tok> {
         let source = format!("\"\"\"{eol} test string{eol} \"\"\"");
-        let tokens = lex_source(&source);
-        assert_eq!(
-            tokens,
-            vec![
-                Tok::String {
-                    value: format!("{eol} test string{eol} "),
-                    kind: StringKind::String,
-                    triple_quoted: true,
-                },
-                Tok::Newline,
-            ]
-        );
+        lex_source(&source)
+    }
+
+    #[test]
+    fn test_triple_quoted_unix_eol() {
+        assert_debug_snapshot!(triple_quoted_eol(UNIX_EOL));
+    }
+
+    #[test]
+    fn test_triple_quoted_mac_eol() {
+        assert_debug_snapshot!(triple_quoted_eol(MAC_EOL));
+    }
+
+    #[test]
+    fn test_triple_quoted_windows_eol() {
+        assert_debug_snapshot!(triple_quoted_eol(WINDOWS_EOL));
     }
 
     // This test case is to just make sure that the lexer doesn't go into
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__comment_until_mac_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__comment_until_mac_eol.snap
new file mode 100644
index 0000000000..1c0fa49bdd
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__comment_until_mac_eol.snap
@@ -0,0 +1,17 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Int {
+        value: 123,
+    },
+    Comment(
+        "# Foo",
+    ),
+    Newline,
+    Int {
+        value: 456,
+    },
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__comment_until_unix_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__comment_until_unix_eol.snap
new file mode 100644
index 0000000000..1c0fa49bdd
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__comment_until_unix_eol.snap
@@ -0,0 +1,17 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Int {
+        value: 123,
+    },
+    Comment(
+        "# Foo",
+    ),
+    Newline,
+    Int {
+        value: 456,
+    },
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__comment_until_windows_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__comment_until_windows_eol.snap
new file mode 100644
index 0000000000..1c0fa49bdd
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__comment_until_windows_eol.snap
@@ -0,0 +1,17 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Int {
+        value: 123,
+    },
+    Comment(
+        "# Foo",
+    ),
+    Newline,
+    Int {
+        value: 456,
+    },
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_mac_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_mac_eol.snap
new file mode 100644
index 0000000000..300766d4e6
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_mac_eol.snap
@@ -0,0 +1,31 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Def,
+    Name {
+        name: "foo",
+    },
+    Lpar,
+    Rpar,
+    Colon,
+    Newline,
+    Indent,
+    If,
+    Name {
+        name: "x",
+    },
+    Colon,
+    Newline,
+    NonLogicalNewline,
+    Indent,
+    Return,
+    Int {
+        value: 99,
+    },
+    Newline,
+    NonLogicalNewline,
+    Dedent,
+    Dedent,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_tabs_mac_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_tabs_mac_eol.snap
new file mode 100644
index 0000000000..300766d4e6
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_tabs_mac_eol.snap
@@ -0,0 +1,31 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Def,
+    Name {
+        name: "foo",
+    },
+    Lpar,
+    Rpar,
+    Colon,
+    Newline,
+    Indent,
+    If,
+    Name {
+        name: "x",
+    },
+    Colon,
+    Newline,
+    NonLogicalNewline,
+    Indent,
+    Return,
+    Int {
+        value: 99,
+    },
+    Newline,
+    NonLogicalNewline,
+    Dedent,
+    Dedent,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_tabs_unix_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_tabs_unix_eol.snap
new file mode 100644
index 0000000000..300766d4e6
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_tabs_unix_eol.snap
@@ -0,0 +1,31 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Def,
+    Name {
+        name: "foo",
+    },
+    Lpar,
+    Rpar,
+    Colon,
+    Newline,
+    Indent,
+    If,
+    Name {
+        name: "x",
+    },
+    Colon,
+    Newline,
+    NonLogicalNewline,
+    Indent,
+    Return,
+    Int {
+        value: 99,
+    },
+    Newline,
+    NonLogicalNewline,
+    Dedent,
+    Dedent,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_tabs_windows_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_tabs_windows_eol.snap
new file mode 100644
index 0000000000..300766d4e6
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_tabs_windows_eol.snap
@@ -0,0 +1,31 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Def,
+    Name {
+        name: "foo",
+    },
+    Lpar,
+    Rpar,
+    Colon,
+    Newline,
+    Indent,
+    If,
+    Name {
+        name: "x",
+    },
+    Colon,
+    Newline,
+    NonLogicalNewline,
+    Indent,
+    Return,
+    Int {
+        value: 99,
+    },
+    Newline,
+    NonLogicalNewline,
+    Dedent,
+    Dedent,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_unix_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_unix_eol.snap
new file mode 100644
index 0000000000..300766d4e6
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_unix_eol.snap
@@ -0,0 +1,31 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Def,
+    Name {
+        name: "foo",
+    },
+    Lpar,
+    Rpar,
+    Colon,
+    Newline,
+    Indent,
+    If,
+    Name {
+        name: "x",
+    },
+    Colon,
+    Newline,
+    NonLogicalNewline,
+    Indent,
+    Return,
+    Int {
+        value: 99,
+    },
+    Newline,
+    NonLogicalNewline,
+    Dedent,
+    Dedent,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_windows_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_windows_eol.snap
new file mode 100644
index 0000000000..300766d4e6
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__double_dedent_with_windows_eol.snap
@@ -0,0 +1,31 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Def,
+    Name {
+        name: "foo",
+    },
+    Lpar,
+    Rpar,
+    Colon,
+    Newline,
+    Indent,
+    If,
+    Name {
+        name: "x",
+    },
+    Colon,
+    Newline,
+    NonLogicalNewline,
+    Indent,
+    Return,
+    Int {
+        value: 99,
+    },
+    Newline,
+    NonLogicalNewline,
+    Dedent,
+    Dedent,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__escape_unicode_name.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__escape_unicode_name.snap
new file mode 100644
index 0000000000..dcbe6214e2
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__escape_unicode_name.snap
@@ -0,0 +1,12 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(source)
+---
+[
+    String {
+        value: "\\N{EN SPACE}",
+        kind: String,
+        triple_quoted: false,
+    },
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__indentation_with_mac_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__indentation_with_mac_eol.snap
new file mode 100644
index 0000000000..13f886dfc8
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__indentation_with_mac_eol.snap
@@ -0,0 +1,22 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Def,
+    Name {
+        name: "foo",
+    },
+    Lpar,
+    Rpar,
+    Colon,
+    Newline,
+    Indent,
+    Return,
+    Int {
+        value: 99,
+    },
+    Newline,
+    NonLogicalNewline,
+    Dedent,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__indentation_with_unix_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__indentation_with_unix_eol.snap
new file mode 100644
index 0000000000..13f886dfc8
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__indentation_with_unix_eol.snap
@@ -0,0 +1,22 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Def,
+    Name {
+        name: "foo",
+    },
+    Lpar,
+    Rpar,
+    Colon,
+    Newline,
+    Indent,
+    Return,
+    Int {
+        value: 99,
+    },
+    Newline,
+    NonLogicalNewline,
+    Dedent,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__indentation_with_windows_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__indentation_with_windows_eol.snap
new file mode 100644
index 0000000000..13f886dfc8
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__indentation_with_windows_eol.snap
@@ -0,0 +1,22 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Def,
+    Name {
+        name: "foo",
+    },
+    Lpar,
+    Rpar,
+    Colon,
+    Newline,
+    Indent,
+    Return,
+    Int {
+        value: 99,
+    },
+    Newline,
+    NonLogicalNewline,
+    Dedent,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_mac_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_mac_eol.snap
new file mode 100644
index 0000000000..b1fc0f86a3
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_mac_eol.snap
@@ -0,0 +1,11 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_jupyter_source(&source)
+---
+[
+    IpyEscapeCommand {
+        value: "matplotlib   --inline",
+        kind: Magic,
+    },
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_unix_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_unix_eol.snap
new file mode 100644
index 0000000000..b1fc0f86a3
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_unix_eol.snap
@@ -0,0 +1,11 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_jupyter_source(&source)
+---
+[
+    IpyEscapeCommand {
+        value: "matplotlib   --inline",
+        kind: Magic,
+    },
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_windows_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_windows_eol.snap
new file mode 100644
index 0000000000..b1fc0f86a3
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_windows_eol.snap
@@ -0,0 +1,11 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_jupyter_source(&source)
+---
+[
+    IpyEscapeCommand {
+        value: "matplotlib   --inline",
+        kind: Magic,
+    },
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_with_mac_eol_and_eof.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_with_mac_eol_and_eof.snap
new file mode 100644
index 0000000000..c63c32e2f7
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_with_mac_eol_and_eof.snap
@@ -0,0 +1,11 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_jupyter_source(&source)
+---
+[
+    IpyEscapeCommand {
+        value: "matplotlib ",
+        kind: Magic,
+    },
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_with_unix_eol_and_eof.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_with_unix_eol_and_eof.snap
new file mode 100644
index 0000000000..c63c32e2f7
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_with_unix_eol_and_eof.snap
@@ -0,0 +1,11 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_jupyter_source(&source)
+---
+[
+    IpyEscapeCommand {
+        value: "matplotlib ",
+        kind: Magic,
+    },
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_with_windows_eol_and_eof.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_with_windows_eol_and_eof.snap
new file mode 100644
index 0000000000..c63c32e2f7
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__ipython_escape_command_line_continuation_with_windows_eol_and_eof.snap
@@ -0,0 +1,11 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_jupyter_source(&source)
+---
+[
+    IpyEscapeCommand {
+        value: "matplotlib ",
+        kind: Magic,
+    },
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__line_comment_empty.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__line_comment_empty.snap
new file mode 100644
index 0000000000..54bb60ecb9
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__line_comment_empty.snap
@@ -0,0 +1,13 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Int {
+        value: 99232,
+    },
+    Comment(
+        "#",
+    ),
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__line_comment_long.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__line_comment_long.snap
new file mode 100644
index 0000000000..fe7daee2e8
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__line_comment_long.snap
@@ -0,0 +1,13 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Int {
+        value: 99232,
+    },
+    Comment(
+        "# foo",
+    ),
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__line_comment_single_whitespace.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__line_comment_single_whitespace.snap
new file mode 100644
index 0000000000..ba2a3b3ed1
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__line_comment_single_whitespace.snap
@@ -0,0 +1,13 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Int {
+        value: 99232,
+    },
+    Comment(
+        "# ",
+    ),
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__line_comment_whitespace.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__line_comment_whitespace.snap
new file mode 100644
index 0000000000..1ecef0d88f
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__line_comment_whitespace.snap
@@ -0,0 +1,13 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Int {
+        value: 99232,
+    },
+    Comment(
+        "#  ",
+    ),
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__newline_in_brackets_mac_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__newline_in_brackets_mac_eol.snap
new file mode 100644
index 0000000000..c487c211bf
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__newline_in_brackets_mac_eol.snap
@@ -0,0 +1,52 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Name {
+        name: "x",
+    },
+    Equal,
+    Lsqb,
+    NonLogicalNewline,
+    NonLogicalNewline,
+    Int {
+        value: 1,
+    },
+    Comma,
+    Int {
+        value: 2,
+    },
+    NonLogicalNewline,
+    Comma,
+    Lpar,
+    Int {
+        value: 3,
+    },
+    Comma,
+    NonLogicalNewline,
+    Int {
+        value: 4,
+    },
+    Comma,
+    NonLogicalNewline,
+    Rpar,
+    Comma,
+    Lbrace,
+    NonLogicalNewline,
+    Int {
+        value: 5,
+    },
+    Comma,
+    NonLogicalNewline,
+    Int {
+        value: 6,
+    },
+    Comma,
+    Int {
+        value: 7,
+    },
+    Rbrace,
+    Rsqb,
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__newline_in_brackets_unix_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__newline_in_brackets_unix_eol.snap
new file mode 100644
index 0000000000..c487c211bf
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__newline_in_brackets_unix_eol.snap
@@ -0,0 +1,52 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Name {
+        name: "x",
+    },
+    Equal,
+    Lsqb,
+    NonLogicalNewline,
+    NonLogicalNewline,
+    Int {
+        value: 1,
+    },
+    Comma,
+    Int {
+        value: 2,
+    },
+    NonLogicalNewline,
+    Comma,
+    Lpar,
+    Int {
+        value: 3,
+    },
+    Comma,
+    NonLogicalNewline,
+    Int {
+        value: 4,
+    },
+    Comma,
+    NonLogicalNewline,
+    Rpar,
+    Comma,
+    Lbrace,
+    NonLogicalNewline,
+    Int {
+        value: 5,
+    },
+    Comma,
+    NonLogicalNewline,
+    Int {
+        value: 6,
+    },
+    Comma,
+    Int {
+        value: 7,
+    },
+    Rbrace,
+    Rsqb,
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__newline_in_brackets_windows_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__newline_in_brackets_windows_eol.snap
new file mode 100644
index 0000000000..c487c211bf
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__newline_in_brackets_windows_eol.snap
@@ -0,0 +1,52 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    Name {
+        name: "x",
+    },
+    Equal,
+    Lsqb,
+    NonLogicalNewline,
+    NonLogicalNewline,
+    Int {
+        value: 1,
+    },
+    Comma,
+    Int {
+        value: 2,
+    },
+    NonLogicalNewline,
+    Comma,
+    Lpar,
+    Int {
+        value: 3,
+    },
+    Comma,
+    NonLogicalNewline,
+    Int {
+        value: 4,
+    },
+    Comma,
+    NonLogicalNewline,
+    Rpar,
+    Comma,
+    Lbrace,
+    NonLogicalNewline,
+    Int {
+        value: 5,
+    },
+    Comma,
+    NonLogicalNewline,
+    Int {
+        value: 6,
+    },
+    Comma,
+    Int {
+        value: 7,
+    },
+    Rbrace,
+    Rsqb,
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__string_continuation_with_mac_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__string_continuation_with_mac_eol.snap
new file mode 100644
index 0000000000..7a348c3968
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__string_continuation_with_mac_eol.snap
@@ -0,0 +1,12 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    String {
+        value: "abc\\\rdef",
+        kind: String,
+        triple_quoted: false,
+    },
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__string_continuation_with_unix_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__string_continuation_with_unix_eol.snap
new file mode 100644
index 0000000000..af0afeb0d9
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__string_continuation_with_unix_eol.snap
@@ -0,0 +1,12 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    String {
+        value: "abc\\\ndef",
+        kind: String,
+        triple_quoted: false,
+    },
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__string_continuation_with_windows_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__string_continuation_with_windows_eol.snap
new file mode 100644
index 0000000000..138d6d1e79
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__string_continuation_with_windows_eol.snap
@@ -0,0 +1,12 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    String {
+        value: "abc\\\r\ndef",
+        kind: String,
+        triple_quoted: false,
+    },
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__triple_quoted_mac_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__triple_quoted_mac_eol.snap
new file mode 100644
index 0000000000..e3b1a5cd9a
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__triple_quoted_mac_eol.snap
@@ -0,0 +1,12 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    String {
+        value: "\r test string\r ",
+        kind: String,
+        triple_quoted: true,
+    },
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__triple_quoted_unix_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__triple_quoted_unix_eol.snap
new file mode 100644
index 0000000000..b9edc5d632
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__triple_quoted_unix_eol.snap
@@ -0,0 +1,12 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    String {
+        value: "\n test string\n ",
+        kind: String,
+        triple_quoted: true,
+    },
+    Newline,
+]
diff --git a/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__triple_quoted_windows_eol.snap b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__triple_quoted_windows_eol.snap
new file mode 100644
index 0000000000..2ca0d37c4c
--- /dev/null
+++ b/crates/ruff_python_parser/src/snapshots/ruff_python_parser__lexer__tests__triple_quoted_windows_eol.snap
@@ -0,0 +1,12 @@
+---
+source: crates/ruff_python_parser/src/lexer.rs
+expression: lex_source(&source)
+---
+[
+    String {
+        value: "\r\n test string\r\n ",
+        kind: String,
+        triple_quoted: true,
+    },
+    Newline,
+]