diff --git a/tests/runtime/compiled.py b/src/mccode_antlr/test.py
similarity index 55%
rename from tests/runtime/compiled.py
rename to src/mccode_antlr/test.py
index 19a41be..ba34f62 100644
--- a/tests/runtime/compiled.py
+++ b/src/mccode_antlr/test.py
@@ -1,6 +1,5 @@
 from __future__ import annotations
 from functools import cache
-from mccode_antlr import Flavor
 import pytest
 
 from mccode_antlr.compiler.check import simple_instr_compiles
@@ -45,22 +44,3 @@ def no_cc(*args, **kwargs):
             return method(*args, **kwargs)
     return method
 
-
-def compile_and_run(instr,
-                    parameters,
-                    run=True,
-                    dump_source=True,
-                    target: dict | None = None,
-                    config: dict | None = None,
-                    flavor: Flavor = Flavor.MCSTAS):
-    from pathlib import Path
-    from tempfile import TemporaryDirectory
-    from mccode_antlr.run import mccode_compile, mccode_run_compiled
-
-    kwargs = dict(target=target, config=config, dump_source=dump_source)
-
-    with TemporaryDirectory() as directory:
-        binary, target = mccode_compile(instr, directory, flavor=flavor, **kwargs)
-        # The runtime output directory used *can not* exist for McStas/McXtrace to work properly.
-        # So find a name inside this directory that doesn't exist (any name should work)
-        return mccode_run_compiled(binary, target, Path(directory).joinpath('t'), parameters) if run else (None, None)
diff --git a/src/mccode_antlr/utils.py b/src/mccode_antlr/utils.py
index 4faa310..5143cfe 100644
--- a/src/mccode_antlr/utils.py
+++ b/src/mccode_antlr/utils.py
@@ -1,3 +1,7 @@
+from __future__ import annotations
+
+from mccode_antlr import Flavor
+
 def run_prog_message_output(prog: list[str]):
     """Run a program and return its output
 
@@ -24,4 +28,36 @@ def run_prog_message_output(prog: list[str]):
     else:
         message = f'{prog[0]} not found'
 
-    return message, output
\ No newline at end of file
+    return message, output
+
+
+def make_assembler(name: str, flavor: Flavor = Flavor.MCSTAS):
+    from mccode_antlr.assembler import Assembler
+    from mccode_antlr.reader.registry import default_registries
+    return Assembler(name, registries=default_registries(flavor))
+
+
+def parse_instr_string(instr_source: str):
+    from mccode_antlr.loader import parse_mcstas_instr
+    return parse_mcstas_instr(instr_source)
+
+
+
+def compile_and_run(instr,
+                    parameters,
+                    run=True,
+                    dump_source=True,
+                    target: dict | None = None,
+                    config: dict | None = None,
+                    flavor: Flavor = Flavor.MCSTAS):
+    from pathlib import Path
+    from tempfile import TemporaryDirectory
+    from mccode_antlr.run import mccode_compile, mccode_run_compiled
+
+    kwargs = dict(target=target, config=config, dump_source=dump_source)
+
+    with TemporaryDirectory() as directory:
+        binary, target = mccode_compile(instr, directory, flavor=flavor, **kwargs)
+        # The runtime output directory used *can not* exist for McStas/McXtrace to work properly.
+        # So find a name inside this directory that doesn't exist (any name should work)
+        return mccode_run_compiled(binary, target, Path(directory).joinpath('t'), parameters) if run else (None, None)
diff --git a/tests/instr/test_copy.py b/tests/instr/test_copy.py
index 6563f10..6800178 100644
--- a/tests/instr/test_copy.py
+++ b/tests/instr/test_copy.py
@@ -1,11 +1,11 @@
 from unittest import TestCase
-from .utils import parse_instr_string
 
 
 class TestInstrCopy(TestCase):
     def test_copy(self):
         from mccode_antlr.instr import Instr
-        from mccode_antlr.common import InstrumentParameter, Expr, Value, DataType
+        from mccode_antlr.common import InstrumentParameter, Expr
+        from mccode_antlr.utils import parse_instr_string
         instr_source = """
         DEFINE INSTRUMENT test_copy(par0=3.14159, double par1 = 49, int par2 =     1010110
             , string par3="this is a long string with spaces", 
diff --git a/tests/instr/test_empty_trace.py b/tests/instr/test_empty_trace.py
index 5ce0808..16d1d14 100644
--- a/tests/instr/test_empty_trace.py
+++ b/tests/instr/test_empty_trace.py
@@ -1,5 +1,4 @@
 from unittest import TestCase
-from .utils import make_assembler
 
 
 class TestInstrEmptyTrace(TestCase):
@@ -32,6 +31,7 @@ def test_parse_empty_trace(self):
     def test_assemble_empty_trace(self):
         from mccode_antlr.instr import Instr
         from mccode_antlr.common import InstrumentParameter, Expr, Value, DataType
+        from mccode_antlr.utils import make_assembler
 
         assembler = make_assembler('test_assemble')
 
diff --git a/tests/instr/test_instance_parameters.py b/tests/instr/test_instance_parameters.py
index 172d477..77cfd15 100644
--- a/tests/instr/test_instance_parameters.py
+++ b/tests/instr/test_instance_parameters.py
@@ -1,11 +1,10 @@
 from unittest import TestCase
 from loguru import logger
-from .utils import make_assembler
-
 
 
 class TestInstrInstanceParameters(TestCase):
     def test_assemble_identifier_instance_parameter(self):
+        from mccode_antlr.utils import make_assembler
         assembler = make_assembler('fake_bifrost')
 
         parameters = [
diff --git a/tests/instr/test_positioning.py b/tests/instr/test_positioning.py
index eaf4c3a..27e573c 100644
--- a/tests/instr/test_positioning.py
+++ b/tests/instr/test_positioning.py
@@ -1,5 +1,4 @@
 from unittest import TestCase
-from .utils import make_assembler, parse_instr_string
 
 
 class TestInstrPositioning(TestCase):
@@ -38,6 +37,8 @@ def _positioning_evaluator(self, instr):
         self.assertEqual(v5, last.orientation.position() - up.orientation.position())
 
     def test_assemble_positioning(self):
+        from mccode_antlr.utils import make_assembler
+
         """Equivalent test to `test_read_positioning` but using an assembled instrument"""
         assembler = make_assembler('orientation_test')
         origin = assembler.component("origin", "Progress_bar", at=[0, 0, 0])
@@ -47,6 +48,8 @@ def test_assemble_positioning(self):
         self._positioning_evaluator(assembler.instrument)
 
     def test_read_positioning(self):
+        from mccode_antlr.utils import parse_instr_string
+
         """Equivalent test to `test_assemble_positioning` but using a parsed instrument"""
         instr_source = """DEFINE INSTRUMENT orientation_test() TRACE
         COMPONENT origin = Arm() AT (0, 0, 0) ABSOLUTE
@@ -66,6 +69,7 @@ def _simple_position_tests(self, instr, positions: dict):
             self.assertEqual(positions[instance.name], instance.orientation.position('coordinates'))
 
     def test_simple_positioning(self):
+        from mccode_antlr.utils import parse_instr_string
 
         from math import pi, cos, sin
         instr_source = """DEFINE INSTRUMENT simple_test() TRACE
diff --git a/tests/instr/test_split.py b/tests/instr/test_split.py
index c76d872..7b763c4 100644
--- a/tests/instr/test_split.py
+++ b/tests/instr/test_split.py
@@ -1,5 +1,4 @@
 from unittest import TestCase
-from .utils import parse_instr_string
 
 from mccode_antlr.instr import Instr, Instance
 from mccode_antlr.common.expression import Expr
@@ -8,6 +7,8 @@
 
 class TestInstrSplit(TestCase):
     def test_mcpl_split(self):
+        from mccode_antlr.utils import parse_instr_string
+
         instr_source = """
         DEFINE INSTRUMENT test_copy()
         TRACE
@@ -52,6 +53,8 @@ def test_mcpl_split(self):
         self.assertEqual(before.get_component('second').rotate_relative[1], first)
 
     def test_split_broken_reference(self):
+        from mccode_antlr.utils import parse_instr_string
+
         from textwrap import dedent
         instr = dedent("""\
         DEFINE INSTRUMENT test_tof(phase/"degree"=0)
diff --git a/tests/instr/utils.py b/tests/instr/utils.py
deleted file mode 100644
index 92ab4d1..0000000
--- a/tests/instr/utils.py
+++ /dev/null
@@ -1,11 +0,0 @@
-from mccode_antlr import Flavor
-
-def make_assembler(name: str, flavor: Flavor = Flavor.MCSTAS):
-    from mccode_antlr.assembler import Assembler
-    from mccode_antlr.reader.registry import default_registries
-    return Assembler(name, registries=default_registries(flavor))
-
-
-def parse_instr_string(instr_source: str):
-    from mccode_antlr.loader import parse_mcstas_instr
-    return parse_mcstas_instr(instr_source)
\ No newline at end of file
diff --git a/tests/runtime/test_c_runtime.py b/tests/runtime/test_c_runtime.py
index 52a41ed..b85d57e 100644
--- a/tests/runtime/test_c_runtime.py
+++ b/tests/runtime/test_c_runtime.py
@@ -1,11 +1,12 @@
 import unittest
 from textwrap import dedent
 from mccode_antlr.loader import parse_mcstas_instr
-from .compiled import compile_and_run, compiled_test, gpu_compiled_test
+from mccode_antlr.test import compiled_test, gpu_compiled_test
 
 
 class CRuntimeTestCase(unittest.TestCase):
     def _do_trace_tests(self, with_acc):
+        from mccode_antlr.utils import compile_and_run
         instr = parse_mcstas_instr(dedent(
             """\
             DEFINE INSTRUMENT test_component_traces_visited()
@@ -37,6 +38,7 @@ def test_funnel_raytrace_traces_visited(self):
         self._do_trace_tests(with_acc=True)
 
     def _do_jump_tests(self, contents: str, jumps: int):
+        from mccode_antlr.utils import compile_and_run
         instr = parse_mcstas_instr(contents)
         results, data = compile_and_run(instr, f"-n 1 jumps={jumps}")
         lines = results.decode('utf-8').splitlines()
@@ -77,6 +79,7 @@ def test_jump_when(self):
 
     @compiled_test
     def test_split(self):
+        from mccode_antlr.utils import compile_and_run
         contents = dedent("""\
                           define instrument test_split(int splits) trace
                           component a = Arm() AT (0,0,0) ABSOLUTE EXTEND %{printf("a\\n");%}
@@ -98,6 +101,7 @@ def test_split(self):
 
     @compiled_test
     def test_when(self):
+        from mccode_antlr.utils import compile_and_run
         instr = parse_mcstas_instr(dedent("""\
             define instrument test_when(dummy) 
             declare %{int count;%}
@@ -117,6 +121,7 @@ def test_when(self):
 
     @compiled_test
     def test_group(self):
+        from mccode_antlr.utils import compile_and_run
         instr = parse_mcstas_instr(dedent("""\
             define instrument test_group(dummy)
             declare %{int count;%}
diff --git a/tests/runtime/test_examples.py b/tests/runtime/test_examples.py
index 26dc9ee..c80114b 100644
--- a/tests/runtime/test_examples.py
+++ b/tests/runtime/test_examples.py
@@ -3,11 +3,12 @@
 from mccode_antlr.loader.loader import parse_mcstas_instr
 from textwrap import dedent
 
-from .compiled import compile_and_run, compiled_test
+from mccode_antlr.test import compiled_test
 
 
 @compiled_test
 def test_without_components():
+    from mccode_antlr.utils import compile_and_run
     instr = parse_mcstas_instr(dedent("""\
     DEFINE INSTRUMENT without_components(int dummy=0)
     DECLARE %{
@@ -34,6 +35,7 @@ def test_template_instr():
     """
     This test failed previously because its name is a reserved word in C++ (template)
     """
+    from mccode_antlr.utils import compile_and_run
     instr = parse_mcstas_instr(dedent("""\
     DEFINE INSTRUMENT template(Par1=1)
     DECLARE %{ %}
@@ -53,6 +55,7 @@ def test_template_instr():
     reason='This test fails to compile on Windows due to https://github.com/McStasMcXtrace/McCode/issues/1817'
 )
 def test_component_declare_variable_initialised():
+    from mccode_antlr.utils import compile_and_run
     instr = parse_mcstas_instr(dedent("""\
     DEFINE INSTRUMENT namedsomething(dummy=0)
     DECLARE %{
@@ -72,6 +75,7 @@ def test_component_declare_variable_initialised():
 
 @compiled_test
 def test_function_pointer_declare_parameter():
+    from mccode_antlr.utils import compile_and_run
     instr = parse_mcstas_instr(dedent("""\
     DEFINE INSTRUMENT with_function_pointers(int which=0)
     DECLARE %{
@@ -119,6 +123,7 @@ def test_function_pointer_declare_parameter():
 
 @compiled_test
 def test_function_pointer_component_declare_parameter():
+    from mccode_antlr.utils import compile_and_run
     from mccode_antlr.reader.registry import InMemoryRegistry
     in_memory_registry = InMemoryRegistry('test_components')
     comp_name = 'declares_function_pointer'
@@ -185,6 +190,7 @@ def test_function_pointer_component_declare_parameter():
 
 @compiled_test
 def test_struct_instance_parameter():
+    from mccode_antlr.utils import compile_and_run
     instr = parse_mcstas_instr(dedent(r"""
     DEFINE INSTRUMENT test_template_TAS(DM=3.3539)
     DECLARE
@@ -245,6 +251,7 @@ def test_struct_instance_parameter():
 
 @compiled_test
 def test_copy_extend_instance_parameter():
+    from mccode_antlr.utils import compile_and_run
     from mccode_antlr.reader.registry import InMemoryRegistry
     in_memory_registry = InMemoryRegistry('test_components')
     comp_name = 'has_parameter'
diff --git a/tests/runtime/test_instr.py b/tests/runtime/test_instr.py
index 2d0dd34..dd8ce80 100644
--- a/tests/runtime/test_instr.py
+++ b/tests/runtime/test_instr.py
@@ -1,6 +1,7 @@
 from unittest import TestCase
 from loguru import logger
-from .compiled import compiled_test, mcpl_compiled_test, compile_and_run
+from mccode_antlr.test import compiled_test, mcpl_compiled_test
+from mccode_antlr.utils import compile_and_run
 from mccode_antlr import Flavor
 
 class TestCompiledInstr(TestCase):
diff --git a/tests/runtime/test_mcxtrace.py b/tests/runtime/test_mcxtrace.py
index 3817af4..4f57e74 100644
--- a/tests/runtime/test_mcxtrace.py
+++ b/tests/runtime/test_mcxtrace.py
@@ -1,6 +1,7 @@
 from textwrap import dedent
 from mccode_antlr.loader import parse_mcstas_instr, parse_mcxtrace_instr
-from .compiled import compiled_test, compile_and_run, Flavor
+from mccode_antlr.test import compiled_test
+from mccode_antlr.utils import compile_and_run, Flavor
 from mccode_antlr.reader.registry import InMemoryRegistry
 
 in_memory = InMemoryRegistry(
diff --git a/tests/runtime/test_multiple_copy.py b/tests/runtime/test_multiple_copy.py
index 59c26d4..bbcecba 100644
--- a/tests/runtime/test_multiple_copy.py
+++ b/tests/runtime/test_multiple_copy.py
@@ -1,6 +1,7 @@
 from textwrap import dedent
 from mccode_antlr.loader import parse_mcstas_instr
-from .compiled import compiled_test, compile_and_run
+from mccode_antlr.test import compiled_test
+from mccode_antlr.utils import compile_and_run
 from mccode_antlr.reader.registry import InMemoryRegistry
 
 
diff --git a/tests/runtime/test_nexus.py b/tests/runtime/test_nexus.py
index 29203b8..22ff0a3 100644
--- a/tests/runtime/test_nexus.py
+++ b/tests/runtime/test_nexus.py
@@ -1,6 +1,7 @@
 from textwrap import dedent
 from mccode_antlr.loader import parse_mcstas_instr
-from .compiled import compiled_test, compile_and_run
+from mccode_antlr.test import compiled_test
+from mccode_antlr.utils import compile_and_run
 from mccode_antlr.reader.registry import InMemoryRegistry
 
 
diff --git a/tests/runtime/test_parameters.py b/tests/runtime/test_parameters.py
index 7c918a3..d6abd4f 100644
--- a/tests/runtime/test_parameters.py
+++ b/tests/runtime/test_parameters.py
@@ -1,4 +1,5 @@
-from .compiled import compile_and_run, compiled_test
+from mccode_antlr.test import compiled_test
+from mccode_antlr.utils import compile_and_run
 
 @compiled_test
 def test_parameters():
diff --git a/tests/runtime/test_raytrace.py b/tests/runtime/test_raytrace.py
index 35c5637..33f828f 100644
--- a/tests/runtime/test_raytrace.py
+++ b/tests/runtime/test_raytrace.py
@@ -1,7 +1,7 @@
 from textwrap import dedent
 from mccode_antlr.loader import parse_mcstas_instr
-from .compiled import compiled_test, gpu_compiled_test, compile_and_run
-from mccode_antlr.config import config
+from mccode_antlr.test import gpu_compiled_test
+from mccode_antlr.utils import compile_and_run
 from mccode_antlr.reader.registry import InMemoryRegistry
 
 
diff --git a/tests/runtime/test_when.py b/tests/runtime/test_when.py
index 162e2b0..37ded4b 100644
--- a/tests/runtime/test_when.py
+++ b/tests/runtime/test_when.py
@@ -1,6 +1,7 @@
 from textwrap import dedent
 from mccode_antlr.loader import parse_mcstas_instr
-from .compiled import compiled_test, compile_and_run
+from mccode_antlr.test import compiled_test
+from mccode_antlr.utils import compile_and_run
 
 @compiled_test
 def test_when_logical_parses():
diff --git a/tests/test_component_vector_parameter.py b/tests/test_component_vector_parameter.py
index ab078ae..2202471 100644
--- a/tests/test_component_vector_parameter.py
+++ b/tests/test_component_vector_parameter.py
@@ -1,6 +1,6 @@
 import unittest
 
-from tests.runtime.compiled import compiled_test
+from mccode_antlr.test import compiled_test
 
 FAKE_COMPONENTS = dict(component_with_vector_parameter="""
 DEFINE COMPONENT component_with_vector_parameter