diff --git a/tests/packages/test_locker.py b/tests/packages/test_locker.py
index cc16cadeff3..b30e2d3af54 100644
--- a/tests/packages/test_locker.py
+++ b/tests/packages/test_locker.py
@@ -17,7 +17,7 @@
 from poetry.core.semver.version import Version
 
 from poetry.factory import Factory
-from poetry.packages.locker import Locker
+from poetry.packages.locker import Locker, GENERATED_COMMENT
 from tests.helpers import get_dependency
 from tests.helpers import get_package
 
@@ -62,8 +62,8 @@ def test_lock_file_data_is_ordered(locker: Locker, root: ProjectPackage):
     with locker.lock.open(encoding="utf-8") as f:
         content = f.read()
 
-    expected = """\
-# This file is automatically @generated by Poetry and should not be changed by hand.
+    expected = f"""\
+# {GENERATED_COMMENT}
 
 [[package]]
 name = "A"
@@ -114,9 +114,9 @@ def test_lock_file_data_is_ordered(locker: Locker, root: ProjectPackage):
 
 [metadata.files]
 A = [
-    {file = "bar", hash = "123"},
-    {file = "foo", hash = "456"},
-    {file = "baz", hash = "345"},
+    {{file = "bar", hash = "123"}},
+    {{file = "foo", hash = "456"}},
+    {{file = "baz", hash = "345"}},
 ]
 B = []
 git-package = []
@@ -126,8 +126,8 @@ def test_lock_file_data_is_ordered(locker: Locker, root: ProjectPackage):
 
 
 def test_locker_properly_loads_extras(locker: Locker):
-    content = """\
-# This file is automatically @generated by Poetry and should not be changed by hand.
+    content = f"""\
+# {GENERATED_COMMENT}
 
 [[package]]
 name = "cachecontrol"
@@ -173,8 +173,8 @@ def test_locker_properly_loads_extras(locker: Locker):
 
 
 def test_locker_properly_loads_nested_extras(locker: Locker):
-    content = """\
-# This file is automatically @generated by Poetry and should not be changed by hand.
+    content = f"""\
+# {GENERATED_COMMENT}
 
 [[package]]
 name = "a"
@@ -185,7 +185,7 @@ def test_locker_properly_loads_nested_extras(locker: Locker):
 python-versions = "*"
 
 [package.dependencies]
-b = {version = "^1.0", optional = true, extras = "c"}
+b = {{version = "^1.0", optional = true, extras = "c"}}
 
 [package.extras]
 b = ["b[c] (>=1.0,<2.0)"]
@@ -199,7 +199,7 @@ def test_locker_properly_loads_nested_extras(locker: Locker):
 python-versions = "*"
 
 [package.dependencies]
-c = {version = "^1.0", optional = true}
+c = {{version = "^1.0", optional = true}}
 
 [package.extras]
 c = ["c (>=1.0,<2.0)"]
@@ -255,8 +255,8 @@ def test_locker_properly_loads_nested_extras(locker: Locker):
 
 
 def test_locker_properly_loads_extras_legacy(locker: Locker):
-    content = """\
-# This file is automatically @generated by Poetry and should not be changed by hand.
+    content = f"""\
+# {GENERATED_COMMENT}
 
 [[package]]
 name = "a"
@@ -267,7 +267,7 @@ def test_locker_properly_loads_extras_legacy(locker: Locker):
 python-versions = "*"
 
 [package.dependencies]
-b = {version = "^1.0", optional = true}
+b = {{version = "^1.0", optional = true}}
 
 [package.extras]
 b = ["b (^1.0)"]
@@ -315,8 +315,8 @@ def test_lock_packages_with_null_description(locker: Locker, root: ProjectPackag
     with locker.lock.open(encoding="utf-8") as f:
         content = f.read()
 
-    expected = """\
-# This file is automatically @generated by Poetry and should not be changed by hand.
+    expected = f"""\
+# {GENERATED_COMMENT}
 
 [[package]]
 name = "A"
@@ -349,8 +349,8 @@ def test_lock_file_should_not_have_mixed_types(locker: Locker, root: ProjectPack
 
     locker.set_lock_data(root, [package_a])
 
-    expected = """\
-# This file is automatically @generated by Poetry and should not be changed by hand.
+    expected = f"""\
+# {GENERATED_COMMENT}
 
 [[package]]
 name = "A"
@@ -362,8 +362,8 @@ def test_lock_file_should_not_have_mixed_types(locker: Locker, root: ProjectPack
 
 [package.dependencies]
 B = [
-    {version = "^1.0.0"},
-    {version = ">=1.0.0", optional = true},
+    {{version = "^1.0.0"}},
+    {{version = ">=1.0.0", optional = true}},
 ]
 
 [package.extras]
@@ -385,8 +385,8 @@ def test_lock_file_should_not_have_mixed_types(locker: Locker, root: ProjectPack
 
 
 def test_reading_lock_file_should_raise_an_error_on_invalid_data(locker: Locker):
-    content = """\
-# This file is automatically @generated by Poetry and should not be changed by hand.
+    content = f"""\
+# {GENERATED_COMMENT}
 
 [[package]]
 name = "A"
@@ -436,8 +436,8 @@ def test_locking_legacy_repository_package_should_include_source_section(
     with locker.lock.open(encoding="utf-8") as f:
         content = f.read()
 
-    expected = """\
-# This file is automatically @generated by Poetry and should not be changed by hand.
+    expected = f"""\
+# {GENERATED_COMMENT}
 
 [[package]]
 name = "A"
@@ -498,8 +498,8 @@ def test_locker_should_emit_warnings_if_lock_version_is_newer_but_allowed(
 def test_locker_should_raise_an_error_if_lock_version_is_newer_and_not_allowed(
     locker: Locker, caplog: LogCaptureFixture
 ):
-    content = """\
-# This file is automatically @generated by Poetry and should not be changed by hand.
+    content = f"""\
+# {GENERATED_COMMENT}
 
 [metadata]
 lock-version = "2.0"
@@ -527,8 +527,8 @@ def test_extras_dependencies_are_ordered(locker: Locker, root: ProjectPackage):
 
     locker.set_lock_data(root, [package_a])
 
-    expected = """\
-# This file is automatically @generated by Poetry and should not be changed by hand.
+    expected = f"""\
+# {GENERATED_COMMENT}
 
 [[package]]
 name = "A"
@@ -539,7 +539,7 @@ def test_extras_dependencies_are_ordered(locker: Locker, root: ProjectPackage):
 python-versions = "*"
 
 [package.dependencies]
-B = {version = "^1.0.0", extras = ["a", "b", "c"], optional = true}
+B = {{version = "^1.0.0", extras = ["a", "b", "c"], optional = true}}
 
 [metadata]
 lock-version = "1.1"
@@ -620,7 +620,7 @@ def test_locker_dumps_dependency_information_correctly(
     with locker.lock.open(encoding="utf-8") as f:
         content = f.read()
 
-    expected = """# This file is automatically @generated by Poetry and should not be changed by hand.
+    expected = f"""# {GENERATED_COMMENT}
 
 [[package]]
 name = "A"
@@ -631,11 +631,11 @@ def test_locker_dumps_dependency_information_correctly(
 python-versions = "*"
 
 [package.dependencies]
-B = {path = "project_with_extras", develop = true}
-C = {path = "directory/project_with_transitive_directory_dependencies"}
-D = {path = "distributions/demo-0.1.0.tar.gz"}
-E = {url = "https://python-poetry.org/poetry-1.2.0.tar.gz"}
-F = {git = "https://github.com/python-poetry/poetry.git", branch = "foo"}
+B = {{path = "project_with_extras", develop = true}}
+C = {{path = "directory/project_with_transitive_directory_dependencies"}}
+D = {{path = "distributions/demo-0.1.0.tar.gz"}}
+E = {{url = "https://python-poetry.org/poetry-1.2.0.tar.gz"}}
+F = {{git = "https://github.com/python-poetry/poetry.git", branch = "foo"}}
 
 [metadata]
 lock-version = "1.1"
@@ -652,8 +652,8 @@ def test_locker_dumps_dependency_information_correctly(
 def test_locked_repository_uses_root_dir_of_package(
     locker: Locker, mocker: MockerFixture
 ):
-    content = """\
-# This file is automatically @generated by Poetry and should not be changed by hand.
+    content = f"""\
+# {GENERATED_COMMENT}
 
 [[package]]
 name = "lib-a"
@@ -665,7 +665,7 @@ def test_locked_repository_uses_root_dir_of_package(
 develop = true
 
 [package.dependencies]
-lib-b = {path = "../libB", develop = true}
+lib-b = {{path = "../libB", develop = true}}
 
 [package.source]
 type = "directory"