chore(tests): avoid unnecessary parsing

tests/packages/test_locker.py

@@ -12,7 +12,6 @@ from pathlib import Path
 from typing import TYPE_CHECKING
 
 import pytest
-import tomlkit
 
 from poetry.core.constraints.version import Version
 from poetry.core.packages.package import Package
@@ -231,9 +230,8 @@ python-versions = "~2.7 || ^3.4"
 content-hash = "c3d07fca33fba542ef2b2a4d75bf5b48d892d21a830e2ad9c952ba5123a52f77"
 """  # noqa: E800
 
-    data = tomlkit.parse(content)
     with open(locker.lock, "w", encoding="utf-8") as f:
-        f.write(data.as_string())
+        f.write(content)
 
     packages = locker.locked_repository().packages
 
@@ -296,9 +294,8 @@ lock-version = "2.0"
 content-hash = "123456789"
 """  # noqa: E800
 
-    data = tomlkit.parse(content)
     with open(locker.lock, "w", encoding="utf-8") as f:
-        f.write(data.as_string())
+        f.write(content)
 
     repository = locker.locked_repository()
     assert len(repository.packages) == 3
@@ -363,9 +360,8 @@ lock-version = "2.0"
 content-hash = "123456789"
 """  # noqa: E800
 
-    data = tomlkit.parse(content)
     with open(locker.lock, "w", encoding="utf-8") as f:
-        f.write(data.as_string())
+        f.write(content)
 
     repository = locker.locked_repository()
     assert len(repository.packages) == 2
@@ -405,9 +401,8 @@ lock-version = "2.0"
 python-versions = "*"
 content-hash = "115cf985d932e9bf5f540555bbdd75decbb62cac81e399375fc19f6277f8c1d8"
 """
-    data = tomlkit.parse(content)
     with open(locker.lock, "w", encoding="utf-8") as f:
-        f.write(data.as_string())
+        f.write(content)
 
     repository = locker.locked_repository()
     assert len(repository.packages) == 1
@@ -503,9 +498,8 @@ demo = [
     {file = "demo-1.0-py3-none-any.whl", hash = "sha256"},
 ]
 """
-    data = tomlkit.parse(content)
     with open(locker.lock, "w", encoding="utf-8") as f:
-        f.write(data.as_string())
+        f.write(content)
 
     repository = locker.locked_repository()
     assert len(repository.packages) == 5
@@ -697,9 +691,8 @@ content-hash = "c3d07fca33fba542ef2b2a4d75bf5b48d892d21a830e2ad9c952ba5123a52f77
 """
     caplog.set_level(logging.WARNING, logger="poetry.packages.locker")
 
-    data = tomlkit.parse(content)
     with open(locker.lock, "w", encoding="utf-8") as f:
-        f.write(data.as_string())
+        f.write(content)
 
     _ = locker.lock_data
 
@@ -729,9 +722,8 @@ content-hash = "c3d07fca33fba542ef2b2a4d75bf5b48d892d21a830e2ad9c952ba5123a52f77
 """  # noqa: E800
     caplog.set_level(logging.WARNING, logger="poetry.packages.locker")
 
-    data = tomlkit.parse(content)
     with open(locker.lock, "w", encoding="utf-8") as f:
-        f.write(data.as_string())
+        f.write(content)
 
     with pytest.raises(RuntimeError, match="^The lock file is not compatible"):
         _ = locker.lock_data
@@ -824,9 +816,8 @@ content-hash = "c3d07fca33fba542ef2b2a4d75bf5b48d892d21a830e2ad9c952ba5123a52f77
 """
     caplog.set_level(logging.WARNING, logger="poetry.packages.locker")
 
-    data = tomlkit.parse(content)
     with open(locker.lock, "w", encoding="utf-8") as f:
-        f.write(data.as_string())
+        f.write(content)
 
     _ = locker.lock_data
 
@@ -1031,9 +1022,8 @@ python-versions = "*"
 content-hash = "115cf985d932e9bf5f540555bbdd75decbb62cac81e399375fc19f6277f8c1d8"
 """  # noqa: E800
 
-    data = tomlkit.parse(content)
     with open(locker.lock, "w", encoding="utf-8") as f:
-        f.write(data.as_string())
+        f.write(content)
 
     create_dependency_patch = mocker.patch(
         "poetry.factory.Factory.create_dependency", autospec=True