test: escape the remaining confusable test characters

An ideographic full stop and a combining diaeresis on an ASCII letter in the domain lookalike tests, and the fullwidth digits in the Spanish identifier tests, read as plain ASCII in the source. Write them as escapes; the test values are unchanged.

Author: nandgator

tests/i18n/test_es.py

@@ -127,7 +127,14 @@ def test_returns_true_on_valid_doi(value: str):
     assert es_doi(value)
 
 
-@pytest.mark.parametrize("digits", ["０１２３４５６７８９", "٠١٢٣٤٥٦٧٨٩", "०१२३४५६७८९"])
+@pytest.mark.parametrize(
+    "digits",
+    [
+        "\uff10\uff11\uff12\uff13\uff14\uff15\uff16\uff17\uff18\uff19",
+        "\u0660\u0661\u0662\u0663\u0664\u0665\u0666\u0667\u0668\u0669",
+        "\u0966\u0967\u0968\u0969\u096a\u096b\u096c\u096d\u096e\u096f",
+    ],
+)
 @pytest.mark.parametrize(
     "validate,value",
     [

tests/test_domain.py

@@ -178,7 +178,7 @@ def test_returns_failed_validation_on_domain_beyond_rfc_limits(value: str):
         "example.\u217dom",  # small roman numeral one hundred
         "\u212aelvin.com",  # Kelvin sign
         "\u017fhop.com",  # long s
-        "example。com",  # ideographic full stop
+        "example\u3002com",  # ideographic full stop
         "example\uff0ecom",  # fullwidth full stop
         "example\uff61com",  # halfwidth ideographic full stop
         "exam\u00adple.com",  # soft hyphen
@@ -187,7 +187,7 @@ def test_returns_failed_validation_on_domain_beyond_rfc_limits(value: str):
         "exam\ufe0fple.com",  # variation selector
         "examp\u2060le.com",  # word joiner
         "\ufeffexample.com",  # zero width no-break space
-        "exämple.com".replace("ä", "ä"),  # not NFC
+        "exämple.com".replace("ä", "a\u0308"),  # not NFC
     ],
 )
 @pytest.mark.parametrize("consider_tld", [False, True])