From 5d3e19b72a4dcf1bf6a087574aff55c4ccc96715 Mon Sep 17 00:00:00 2001
From: Zanie <contact@zanie.dev>
Date: Wed, 15 Nov 2023 10:01:13 -0600
Subject: [PATCH] Add failing test case for escaped curly braces bug in UP032

---
 .../test/fixtures/pyupgrade/UP032_0.py        | 14 ++++++
 ...__rules__pyupgrade__tests__UP032_0.py.snap | 49 +++++++++++++++++++
 2 files changed, 63 insertions(+)

diff --git a/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP032_0.py b/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP032_0.py
index 0ba30683b92ae..6e8b7e8c728de 100644
--- a/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP032_0.py
+++ b/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP032_0.py
@@ -207,3 +207,17 @@ async def c():
 # The fixed string will exceed the line length, but it's still smaller than the
 # existing line length, so it's fine.
 "<Customer: {}, {}, {}, {}, {}>".format(self.internal_ids, self.external_ids, self.properties, self.tags, self.others)
+
+
+# The first string will be converted to an f-string and the curly braces in the second should be converted to be unescaped
+(
+    "{}"
+    "{{}}"
+).format(a)
+
+
+# Both strings will be converted to an f-string and the curly braces in the second should left escaped
+(
+    "{}"
+    "{{{}}}"
+).format(a, b)
\ No newline at end of file
diff --git a/crates/ruff_linter/src/rules/pyupgrade/snapshots/ruff_linter__rules__pyupgrade__tests__UP032_0.py.snap b/crates/ruff_linter/src/rules/pyupgrade/snapshots/ruff_linter__rules__pyupgrade__tests__UP032_0.py.snap
index b6849b082c216..c38645660ba75 100644
--- a/crates/ruff_linter/src/rules/pyupgrade/snapshots/ruff_linter__rules__pyupgrade__tests__UP032_0.py.snap
+++ b/crates/ruff_linter/src/rules/pyupgrade/snapshots/ruff_linter__rules__pyupgrade__tests__UP032_0.py.snap
@@ -971,5 +971,54 @@ UP032_0.py:209:1: UP032 [*] Use f-string instead of `format` call
 208 208 | # existing line length, so it's fine.
 209     |-"<Customer: {}, {}, {}, {}, {}>".format(self.internal_ids, self.external_ids, self.properties, self.tags, self.others)
     209 |+f"<Customer: {self.internal_ids}, {self.external_ids}, {self.properties}, {self.tags}, {self.others}>"
+210 210 | 
+211 211 | 
+212 212 | # The first string will be converted to an f-string and the curly braces in the second should be converted to be unescaped
+
+UP032_0.py:213:1: UP032 [*] Use f-string instead of `format` call
+    |
+212 |   # The first string will be converted to an f-string and the curly braces in the second should be converted to be unescaped
+213 | / (
+214 | |     "{}"
+215 | |     "{{}}"
+216 | | ).format(a)
+    | |___________^ UP032
+    |
+    = help: Convert to f-string
+
+ℹ Safe fix
+211 211 | 
+212 212 | # The first string will be converted to an f-string and the curly braces in the second should be converted to be unescaped
+213 213 | (
+214     |-    "{}"
+    214 |+    f"{a}"
+215 215 |     "{{}}"
+216     |-).format(a)
+    216 |+)
+217 217 | 
+218 218 | 
+219 219 | # Both strings will be converted to an f-string and the curly braces in the second should left escaped
+
+UP032_0.py:220:1: UP032 [*] Use f-string instead of `format` call
+    |
+219 |   # Both strings will be converted to an f-string and the curly braces in the second should left escaped
+220 | / (
+221 | |     "{}"
+222 | |     "{{{}}}"
+223 | | ).format(a, b)
+    | |______________^ UP032
+    |
+    = help: Convert to f-string
+
+ℹ Safe fix
+218 218 | 
+219 219 | # Both strings will be converted to an f-string and the curly braces in the second should left escaped
+220 220 | (
+221     |-    "{}"
+222     |-    "{{{}}}"
+223     |-).format(a, b)
+    221 |+    f"{a}"
+    222 |+    f"{{{b}}}"
+    223 |+)