From e0731310902c491c018740d4a2923bc1d033af05 Mon Sep 17 00:00:00 2001
From: Ashley Whetter <ashley@awhetter.co.uk>
Date: Fri, 19 Mar 2021 21:15:15 -0700
Subject: [PATCH] POETRY_EXPERIMENTAL_NEW_INSTALLER is interpreted as a boolean

---
 src/poetry/config/config.py |  1 +
 tests/config/test_config.py | 36 +++++++++++++++++++++++++++---------
 2 files changed, 28 insertions(+), 9 deletions(-)

diff --git a/src/poetry/config/config.py b/src/poetry/config/config.py
index 82eb95b3282..03ff85de8ec 100644
--- a/src/poetry/config/config.py
+++ b/src/poetry/config/config.py
@@ -132,6 +132,7 @@ def _get_normalizer(self, name: str) -> Callable:
             "virtualenvs.in-project",
             "virtualenvs.options.always-copy",
             "virtualenvs.options.system-site-packages",
+            "experimental.new-installer",
             "installer.parallel",
         }:
             return boolean_normalizer
diff --git a/tests/config/test_config.py b/tests/config/test_config.py
index f3b13f23003..0d1e0e48b6d 100644
--- a/tests/config/test_config.py
+++ b/tests/config/test_config.py
@@ -1,7 +1,22 @@
 import os
+import re
 
 import pytest
 
+from poetry.config.config import Config
+
+
+def get_boolean_options(config=None):
+    if config is None:
+        config = Config.default_config
+
+    for k, v in config.items():
+        if isinstance(v, bool) or v is None:
+            yield k
+        if isinstance(v, dict):
+            for suboption in get_boolean_options(v):
+                yield "{}.{}".format(k, suboption)
+
 
 @pytest.mark.parametrize(
     ("name", "value"), [("installer.parallel", True), ("virtualenvs.create", True)]
@@ -14,16 +29,19 @@ def test_config_get_processes_depended_on_values(config, config_cache_dir):
     assert str(config_cache_dir / "virtualenvs") == config.get("virtualenvs.path")
 
 
+def generate_environment_variable_tests():
+    for env_value, value in [("true", True), ("false", False)]:
+        for name in get_boolean_options():
+            env_var = "POETRY_{}".format(re.sub("[.-]+", "_", name).upper())
+            yield (name, env_var, env_value, value)
+
+
 @pytest.mark.parametrize(
-    ("name", "env_value", "value"),
-    [
-        ("installer.parallel", "true", True),
-        ("installer.parallel", "false", False),
-        ("virtualenvs.create", "true", True),
-        ("virtualenvs.create", "false", False),
-    ],
+    ("name", "env_var", "env_value", "value"),
+    list(generate_environment_variable_tests()),
 )
-def test_config_get_from_environment_variable(config, environ, name, env_value, value):
-    env_var = "POETRY_{}".format("_".join(k.upper() for k in name.split(".")))
+def test_config_get_from_environment_variable(
+    config, environ, name, env_var, env_value, value
+):
     os.environ[env_var] = env_value
     assert config.get(name) is value