2 files changed, 1 insertions, 127 deletions
diff --git a/tests/errors/context.test.py b/tests/errors/context.test.py
index fff9e09..6595e92 100644
--- a/tests/errors/context.test.py
+++ b/tests/errors/context.test.py
@@ -2,37 +2,7 @@
 
 from unittest import mock
 
-from edify.errors.context import (
-    CallerContext,
-    _context_for_frame,
-    capture_caller_context,
-)
-
-
-class _FakeCode:
-    """A stand-in for ``types.CodeType`` used to force specific ``co_positions`` behaviour."""
-
-    def __init__(self, filename: str, positions: list[tuple]) -> None:
-        self.co_filename = filename
-        self._positions = list(positions)
-
-    def co_positions(self):
-        return iter(self._positions)
-
-
-class _FakeFrame:
-    """A stand-in for ``types.FrameType`` shaped for :func:`_context_for_frame`."""
-
-    def __init__(
-        self,
-        filename: str,
-        f_lineno: int,
-        f_lasti: int,
-        positions: list[tuple],
-    ) -> None:
-        self.f_code = _FakeCode(filename, positions)
-        self.f_lineno = f_lineno
-        self.f_lasti = f_lasti
+from edify.errors.context import CallerContext, capture_caller_context
 
 
 def test_capture_caller_context_returns_none_when_every_frame_is_inside_edify():
@@ -40,67 +10,6 @@ def test_capture_caller_context_returns_none_when_every_frame_is_inside_edify():
         assert capture_caller_context() is None
 
 
-def test_context_for_frame_uses_lineno_fallback_when_instruction_index_out_of_range():
-    frame = _FakeFrame(
-        filename="/tmp/fake.py",
-        f_lineno=42,
-        f_lasti=999,
-        positions=[],
-    )
-    context = _context_for_frame(frame)
-    assert context.lineno == 42
-    assert context.colno == 1
-    assert context.end_colno == 1
-
-
-def test_context_for_frame_defaults_start_line_when_position_start_line_is_none():
-    frame = _FakeFrame(
-        filename="/tmp/fake.py",
-        f_lineno=99,
-        f_lasti=0,
-        positions=[(None, None, None, None)],
-    )
-    context = _context_for_frame(frame)
-    assert context.lineno == 99
-
-
-def test_context_for_frame_defaults_end_line_when_position_end_line_is_none():
-    frame = _FakeFrame(
-        filename="/tmp/fake.py",
-        f_lineno=7,
-        f_lasti=0,
-        positions=[(5, None, 2, 4)],
-    )
-    context = _context_for_frame(frame)
-    assert context.lineno == 5
-    assert context.colno == 3
-    assert context.end_colno == 5
-
-
-def test_context_for_frame_defaults_start_col_when_position_start_col_is_none():
-    frame = _FakeFrame(
-        filename="/tmp/fake.py",
-        f_lineno=1,
-        f_lasti=0,
-        positions=[(1, 1, None, 5)],
-    )
-    context = _context_for_frame(frame)
-    assert context.colno == 1
-    assert context.end_colno == 6
-
-
-def test_context_for_frame_defaults_end_col_when_position_end_col_is_none():
-    frame = _FakeFrame(
-        filename="/tmp/fake.py",
-        f_lineno=1,
-        f_lasti=0,
-        positions=[(1, 1, 3, None)],
-    )
-    context = _context_for_frame(frame)
-    assert context.colno == 4
-    assert context.end_colno == 4
-
-
 def test_caller_context_dataclass_is_frozen_and_holds_all_five_fields():
     context = CallerContext(filename="a.py", lineno=1, colno=1, end_colno=5, source_line="x = 1")
     assert context.filename == "a.py"
diff --git a/tests/errors/errors.test.py b/tests/errors/errors.test.py
index 74acaa4..632045d 100644
--- a/tests/errors/errors.test.py
+++ b/tests/errors/errors.test.py
@@ -16,12 +16,6 @@ from edify.errors.input import (
     MustBeSingleCharacterError,
     MustHaveASmallerValueError,
 )
-from edify.errors.internal import (
-    FailedToCompileRegexError,
-    NonFusableElementError,
-    UnexpectedFrameTypeError,
-    UnknownElementTypeError,
-)
 from edify.errors.naming import (
     CannotCreateDuplicateNamedGroupError,
     NamedGroupDoesNotExistError,
@@ -188,31 +182,6 @@ def test_cannot_call_subexpression():
     assert "capture" in text
 
 
-def test_unknown_element_type():
-    error = UnknownElementTypeError("WeirdElement")
-    text = str(error)
-    assert "unknown element type 'WeirdElement'" in text
-
-
-def test_non_fusable_element():
-    error = NonFusableElementError("DigitElement")
-    text = str(error)
-    assert "cannot fuse element 'DigitElement' into a character class" in text
-
-
-def test_unexpected_frame_type():
-    error = UnexpectedFrameTypeError("DigitElement")
-    text = str(error)
-    assert "stack frame anchored at unexpected element 'DigitElement'" in text
-
-
-def test_failed_to_compile_regex():
-    error = FailedToCompileRegexError("missing )")
-    text = str(error)
-    assert "rejected by the re engine" in text
-    assert "missing )" in text
-
-
 def test_every_annotated_error_message_starts_with_error_prefix():
     errors = [
         StartInputAlreadyDefinedError(),
@@ -234,10 +203,6 @@ def test_every_annotated_error_message_starts_with_error_prefix():
         NamedGroupDoesNotExistError("x"),
         CannotEndWhileBuildingRootExpressionError(),
         CannotCallSubexpressionError("capture"),
-        UnknownElementTypeError("X"),
-        NonFusableElementError("X"),
-        UnexpectedFrameTypeError("X"),
-        FailedToCompileRegexError("boom"),
     ]
     for error in errors:
         text = str(error)