Add test for lock check passing (and fix incorrect fail test)

tests/console/commands/test_lock.py

@@ -32,21 +32,52 @@ def poetry_with_outdated_lockfile(project_factory, fixture_dir):
     return _project_factory("outdated_lock", project_factory, fixture_dir)
 
 
+@pytest.fixture
+def poetry_with_up_to_date_lockfile(project_factory, fixture_dir):
+    return _project_factory("up_to_date_lock", project_factory, fixture_dir)
+
+
 @pytest.fixture
 def poetry_with_old_lockfile(project_factory, fixture_dir):
     return _project_factory("old_lock", project_factory, fixture_dir)
 
 
-def test_lock_check(command_tester_factory, poetry_with_outdated_lockfile, http):
+def test_lock_check_outdated(
+    command_tester_factory, poetry_with_outdated_lockfile, http
+):
     http.disable()
 
+    locker = Locker(
+        lock=poetry_with_outdated_lockfile.pyproject.file.path.parent / "poetry.lock",
+        local_config=poetry_with_outdated_lockfile.locker._local_config,
+    )
+    poetry_with_outdated_lockfile.set_locker(locker)
+
     tester = command_tester_factory("lock", poetry=poetry_with_outdated_lockfile)
     status_code = tester.execute("--check")
 
     # exit with an error
     assert status_code == 1
 
 
+def test_lock_check_up_to_date(
+    command_tester_factory, poetry_with_up_to_date_lockfile, http
+):
+    http.disable()
+
+    locker = Locker(
+        lock=poetry_with_up_to_date_lockfile.pyproject.file.path.parent / "poetry.lock",
+        local_config=poetry_with_up_to_date_lockfile.locker._local_config,
+    )
+    poetry_with_up_to_date_lockfile.set_locker(locker)
+
+    tester = command_tester_factory("lock", poetry=poetry_with_up_to_date_lockfile)
+    status_code = tester.execute("--check")
+
+    # exit with an error
+    assert status_code == 0
+
+
 def test_lock_no_update(command_tester_factory, poetry_with_old_lockfile, repo):
     repo.add_package(get_package("sampleproject", "1.3.1"))
     repo.add_package(get_package("sampleproject", "2.0.0"))

tests/fixtures/up_to_date_lock/pyproject.toml

@@ -0,0 +1,15 @@
+[tool.poetry]
+name = "foobar"
+version = "0.1.0"
+description = ""
+authors = ["Poetry Developer <developer@python-poetry.org>"]
+
+[tool.poetry.dependencies]
+python = "^3.8"
+docker = "4.3.1"
+
+[tool.poetry.dev-dependencies]
+
+[build-system]
+requires = ["poetry-core>=1.0.0"]
+build-backend = "poetry.core.masonry.api"