e2e test for when mutate_only_covered_lines = true

Author: loufranco

e2e_projects/mutate_only_covered_lines/README.md

@@ -0,0 +1 @@
+This project will be E2E tested. It is used to test the mutate_only_covered_lines feature of mutmut.

e2e_projects/mutate_only_covered_lines/pyproject.toml

@@ -0,0 +1,24 @@
+[project]
+name = "mutate_only_covered_lines"
+version = "0.1.0"
+description = "Add your description here"
+readme = "README.md"
+authors = []
+requires-python = ">=3.10"
+dependencies = []
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[dependency-groups]
+dev = [
+    "pytest>=8.3.5",
+]
+
+[tool.mutmut]
+debug = true
+mutate_only_covered_lines = true
+
+[tool.pytest]
+asyncio_default_fixture_loop_scope = "function"

e2e_projects/mutate_only_covered_lines/src/mutate_only_covered_lines/__init__.py

@@ -0,0 +1,5 @@
+def hello_mutate_only_covered_lines(simple_branch: bool) -> str:
+    if simple_branch:
+        return "Hello from mutate_only_covered_lines! (true)"
+    else:
+        return "Hello from mutate_only_covered_lines! (false)"

e2e_projects/mutate_only_covered_lines/tests/test_mutate_only_covered_lines.py

@@ -0,0 +1,6 @@
+from mutate_only_covered_lines import hello_mutate_only_covered_lines
+
+"""This tests the mutate_only_covered_lines feature."""
+
+def test_mutate_only_covered_lines():
+    assert hello_mutate_only_covered_lines(True) == "Hello from mutate_only_covered_lines! (true)"

tests/e2e/snapshots/mutate_only_covered_lines.json

@@ -0,0 +1,7 @@
+{
+  "mutants/src/mutate_only_covered_lines/__init__.py.meta": {
+    "mutate_only_covered_lines.x_hello_mutate_only_covered_lines__mutmut_1": 1,
+    "mutate_only_covered_lines.x_hello_mutate_only_covered_lines__mutmut_2": 1,
+    "mutate_only_covered_lines.x_hello_mutate_only_covered_lines__mutmut_3": 1
+  }
+}

tests/e2e/test_e2e_result_snapshots.py

@@ -79,3 +79,8 @@ def test_my_lib_result_snapshot():
 def test_config_result_snapshot():
     mutmut._reset_globals()
     asserts_results_did_not_change("config")
+
+
+def test_mutate_only_covered_lines_result_snapshot():
+    mutmut._reset_globals()
+    asserts_results_did_not_change("mutate_only_covered_lines")