Fix E221 and E222 to flag missing or extra whitespace around == operator (#13890)

Author: MichaReiser

crates/ruff_linter/resources/test/fixtures/pycodestyle/E22.py

@@ -180,3 +180,6 @@ def squares(n):
 if i == -1:
     pass
 #:
+
+if a  ==  1:
+    print(a)

crates/ruff_linter/src/rules/pycodestyle/rules/logical_lines/space_around_operator.rs

@@ -302,6 +302,7 @@ const fn is_operator_token(token: TokenKind) -> bool {
             | TokenKind::Equal
             | TokenKind::Percent
             | TokenKind::NotEqual
+            | TokenKind::EqEqual
             | TokenKind::LessEqual
             | TokenKind::GreaterEqual
             | TokenKind::CircumFlex

crates/ruff_linter/src/rules/pycodestyle/snapshots/ruff_linter__rules__pycodestyle__tests__E221_E22.py.snap

@@ -168,4 +168,20 @@ E22.py:19:14: E221 [*] Multiple spaces before operator
 21 21 | x = 1
 22 22 | y = 2
 
+E22.py:184:5: E221 [*] Multiple spaces before operator
+    |
+182 | #:
+183 | 
+184 | if a  ==  1:
+    |     ^^ E221
+185 |     print(a)
+    |
+    = help: Replace with single space
 
+ℹ Safe fix
+181 181 |     pass
+182 182 | #:
+183 183 | 
+184     |-if a  ==  1:
+    184 |+if a ==  1:
+185 185 |     print(a)

crates/ruff_linter/src/rules/pycodestyle/snapshots/ruff_linter__rules__pycodestyle__tests__E222_E22.py.snap

@@ -105,4 +105,20 @@ E22.py:36:7: E222 [*] Multiple spaces after operator
 38 38 | #:
 39 39 | 
 
+E22.py:184:9: E222 [*] Multiple spaces after operator
+    |
+182 | #:
+183 | 
+184 | if a  ==  1:
+    |         ^^ E222
+185 |     print(a)
+    |
+    = help: Replace with single space
 
+ℹ Safe fix
+181 181 |     pass
+182 182 | #:
+183 183 | 
+184     |-if a  ==  1:
+    184 |+if a  == 1:
+185 185 |     print(a)