3 files changed, 3 insertions, 17 deletions
diff --git a/tests/pattern/classes.test.py b/tests/pattern/classes.test.py
index 8a82353..c5d4f63 100644
--- a/tests/pattern/classes.test.py
+++ b/tests/pattern/classes.test.py
@@ -42,7 +42,7 @@ from edify import (
         (ALPHANUMERIC, "[a-zA-Z0-9]"),
     ],
 )
-def test_character_class_constant_compiles_to_expected_regex(constant, expected):
+def test_character_class_constant_compiles_to_expected_regex(constant: Pattern, expected: str):
     assert constant.to_regex_string() == expected
 
 
@@ -66,7 +66,7 @@ def test_character_class_constant_compiles_to_expected_regex(constant, expected)
         ALPHANUMERIC,
     ],
 )
-def test_character_class_constant_is_a_pattern(constant):
+def test_character_class_constant_is_a_pattern(constant: object):
     assert isinstance(constant, Pattern)
 
 
@@ -82,7 +82,7 @@ def test_character_class_constant_is_a_pattern(constant):
     ],
 )
 def test_convenience_char_class_constant_matches_expected_characters(
-    constant, hit_input, miss_input
+    constant: Pattern, hit_input: str, miss_input: str
 ):
     assert constant.test(hit_input) is True
     assert constant.test(miss_input) is False
diff --git a/tests/pattern/composition.test.py b/tests/pattern/composition.test.py
index 34d6f89..8242e0e 100644
--- a/tests/pattern/composition.test.py
+++ b/tests/pattern/composition.test.py
@@ -1,9 +1,6 @@
 """Tests for the :class:`Pattern` composition surface."""
 
-import pytest
-
 from edify import Pattern, RegexBuilder
-from edify.errors.input import MustBeInstanceError
 
 
 def test_pattern_builds_the_same_element_tree_as_a_builder():
@@ -34,8 +31,3 @@ def test_subexpression_still_accepts_a_pattern():
     pattern = Pattern().at_least(3).word()
     embedded = RegexBuilder().subexpression(pattern)
     assert embedded.to_regex_string() == "\\w{3,}"
-
-
-def test_subexpression_rejects_non_builder_input():
-    with pytest.raises(MustBeInstanceError):
-        RegexBuilder().subexpression("not a pattern")
diff --git a/tests/pattern/factories/values.test.py b/tests/pattern/factories/values.test.py
index 69b04b7..8aa28b4 100644
--- a/tests/pattern/factories/values.test.py
+++ b/tests/pattern/factories/values.test.py
@@ -4,7 +4,6 @@ import pytest
 
 from edify import Pattern, char, chars, nonchars, nonrange, nonstring, range_of, string
 from edify.errors.input import (
-    MustBeAStringError,
     MustBeOneCharacterError,
     MustBeSingleCharacterError,
     MustHaveASmallerValueError,
@@ -60,8 +59,3 @@ def test_nonrange_produces_a_negated_character_range():
 def test_string_rejects_empty_input():
     with pytest.raises(MustBeOneCharacterError):
         string("")
-
-
-def test_string_rejects_non_string_input():
-    with pytest.raises(MustBeAStringError):
-        string(42)