Show 3 digits instead of 1 in file size strings. (#296)

Co-authored-by: James Lamb <[email protected]>

src/pydistcheck/_utils.py

@@ -76,4 +76,4 @@ def __ne__(self, other: object) -> bool:
 
     def __str__(self) -> str:
         num_bytes, unit_str = _recommend_size_str(self.total_size_bytes)
-        return f"{round(num_bytes, 1)}{unit_str}"
+        return f"{round(num_bytes, 3)}{unit_str}"

tests/test_cli.py

@@ -557,7 +557,7 @@ def test_check_prefers_keyword_args_to_pyproject_toml_and_defaults(
         result,
         (
             r"^1\. \[distro\-too\-large\-uncompressed\] Uncompressed size [0-9]+\.[0-9]+K is "
-            r"larger than the allowed size \(0\.1K\)\.$"
+            r"larger than the allowed size \(0\.12K\)\.$"
         ),
     )
     _assert_log_matches_pattern(result, "errors found while checking\\: 1")

tests/test_utils.py

@@ -70,14 +70,14 @@ def test_file_size_from_number_switches_unit_str_based_on_size():
 @pytest.mark.parametrize(
     ("file_size", "expected_str"),
     [
-        (_FileSize.from_number(110), "0.1K"),
-        (_FileSize.from_number(150), "0.1K"),
+        (_FileSize.from_number(110), "0.107K"),
+        (_FileSize.from_number(150), "0.146K"),
         (_FileSize.from_number(1024), "1.0K"),
         (_FileSize.from_number(100 * 1024), "100.0K"),
-        (_FileSize.from_number(200 * 1024), "0.2M"),
+        (_FileSize.from_number(200 * 1024), "0.195M"),
         (_FileSize.from_number(1024**2), "1.0M"),
-        (_FileSize.from_number(400 * 1024**2), "0.4G"),
-        (_FileSize.from_number(405 * 1024**2), "0.4G"),
+        (_FileSize.from_number(400 * 1024**2), "0.391G"),
+        (_FileSize.from_number(405 * 1024**2), "0.396G"),
         (_FileSize.from_number(1024**3), "1.0G"),
         (_FileSize.from_number(int(7.5 * 1024**3)), "7.5G"),
     ],