From 93fe131e782d6ae8976ed6c670b8710a929ca51a Mon Sep 17 00:00:00 2001
From: Frank Hoffmann <15r10nk-git@polarbit.de>
Date: Thu, 16 May 2024 21:22:34 +0200
Subject: [PATCH] refactor: moved and renamed some things

---
 inline_snapshot/_pandas.py | 40 ++++++++++++++++++++------------------
 tests/test_pandas.py       | 16 +++++++--------
 2 files changed, 29 insertions(+), 27 deletions(-)

diff --git a/inline_snapshot/_pandas.py b/inline_snapshot/_pandas.py
index 7614959..4cf05ad 100644
--- a/inline_snapshot/_pandas.py
+++ b/inline_snapshot/_pandas.py
@@ -1,15 +1,8 @@
 from functools import wraps
 from typing import Optional
 
-from pandas import DataFrame
-from pandas import Index
-from pandas import Series
-from pandas.testing import assert_frame_equal as real_assert_frame_equal
-from pandas.testing import assert_index_equal as real_assert_index_equal
-from pandas.testing import assert_series_equal as real_assert_series_equal
 
-
-def make_assert_equals(data_type, assert_equals, repr_function):
+def make_assert_equal(data_type, assert_equal, repr_function):
 
     class Wrapper:
         def __init__(self, df, cmp):
@@ -24,14 +17,14 @@ def __eq__(self, other):
                 return NotImplemented
             return self.cmp(self.df, other)
 
-    @wraps(assert_equals)
+    @wraps(assert_equal)
     def result(df, df_snapshot, *args, **kargs):
         error: Optional[AssertionError] = None
 
         def cmp(a, b):
             nonlocal error
             try:
-                assert_equals(a, b, *args, **kargs)
+                assert_equal(a, b, *args, **kargs)
             except AssertionError as e:
                 error = e
                 return False
@@ -44,12 +37,21 @@ def cmp(a, b):
     return result
 
 
-assert_frame_equal = make_assert_equals(
-    DataFrame, real_assert_frame_equal, lambda df: df.to_dict("records")
-)
-assert_series_equal = make_assert_equals(
-    Series, real_assert_series_equal, lambda df: df.to_dict()
-)
-assert_index_equal = make_assert_equals(
-    Index, real_assert_index_equal, lambda df: df.to_list()
-)
+try:
+    import pandas
+except:
+    pass
+else:
+    from pandas.testing import assert_frame_equal
+    from pandas.testing import assert_index_equal
+    from pandas.testing import assert_series_equal
+
+    assert_frame_equal = make_assert_equal(
+        pandas.DataFrame, assert_frame_equal, lambda df: df.to_dict("records")
+    )
+    assert_series_equal = make_assert_equal(
+        pandas.Series, assert_series_equal, lambda df: df.to_dict()
+    )
+    assert_index_equal = make_assert_equal(
+        pandas.Index, assert_index_equal, lambda df: df.to_list()
+    )
diff --git a/tests/test_pandas.py b/tests/test_pandas.py
index 3659b7e..acb963f 100644
--- a/tests/test_pandas.py
+++ b/tests/test_pandas.py
@@ -1,16 +1,16 @@
 import sys
 
 import pytest
-from pandas import DataFrame
-from pandas import Index
-from pandas import Series
 
-from inline_snapshot import snapshot
-from inline_snapshot._pandas import assert_frame_equal
-from inline_snapshot._pandas import assert_index_equal
-from inline_snapshot._pandas import assert_series_equal
+if sys.version_info >= (3, 9):
+    from pandas import DataFrame
+    from pandas import Index
+    from pandas import Series
 
-nan = float("nan")
+    from inline_snapshot import snapshot
+    from inline_snapshot._pandas import assert_frame_equal
+    from inline_snapshot._pandas import assert_index_equal
+    from inline_snapshot._pandas import assert_series_equal
 
 
 @pytest.mark.skipif(sys.version_info < (3, 9), reason="no pandas for 3.9")