Run tests for lazy wheel on Travis

Author: McSinyx

.travis.yml

@@ -38,18 +38,34 @@ jobs:
       env:
       - GROUP=1
       - NEW_RESOLVER=1
+    - env:
+      - GROUP=1
+      - NEW_RESOLVER=1
+      - LAZY_WHEEL=1
+    - env:
+      - GROUP=2
+      - NEW_RESOLVER=1
     - env:
       - GROUP=2
       - NEW_RESOLVER=1
+      - LAZY_WHEEL=1
     - env:
       - GROUP=3
       - NEW_RESOLVER=1
+    - env:
+      - GROUP=3
+      - NEW_RESOLVER=1
+      - LAZY_WHEEL=1
 
   fast_finish: true
   allow_failures:
     - env:
       - GROUP=3
       - NEW_RESOLVER=1
+    - env:
+      - GROUP=3
+      - NEW_RESOLVER=1
+      - LAZY_WHEEL=1
 
 before_install: tools/travis/setup.sh
 install: travis_retry tools/travis/install.sh

tests/conftest.py

@@ -47,6 +47,12 @@ def pytest_addoption(parser):
         default=False,
         help="run the skipped tests for the new resolver",
     )
+    parser.addoption(
+        "--lazy-wheel",
+        action="store_true",
+        default=False,
+        help="use lazy wheels in tests (only affect new resolver)",
+    )
     parser.addoption(
         "--use-venv",
         action="store_true",
@@ -102,12 +108,16 @@ def pytest_collection_modifyitems(config, items):
 @pytest.fixture(scope="session", autouse=True)
 def use_new_resolver(request):
     """Set environment variable to make pip default to the new resolver.
+
+    Lazy wheel, an optimization, is also decided here.
     """
     new_resolver = request.config.getoption("--new-resolver")
-    if new_resolver:
-        os.environ["PIP_USE_FEATURE"] = "2020-resolver"
-    else:
+    if not new_resolver:
         os.environ.pop("PIP_USE_FEATURE", None)
+    elif request.config.getoption("--lazy-wheel"):
+        os.environ["PIP_USE_FEATURE"] = "2020-resolver lazy-wheel"
+    else:
+        os.environ["PIP_USE_FEATURE"] = "2020-resolver"
     yield new_resolver
 
 

tools/travis/run.sh

@@ -43,22 +43,28 @@ else
     RESOLVER_SWITCH='--new-resolver'
 fi
 
+if [[ -z "$LAZY_WHEEL" ]]; then
+    LAZY_WHEEL_SWITCH=''
+else
+    LAZY_WHEEL_SWITCH='--lazy-wheel'
+fi
+
 # Print the commands run for this test.
 set -x
 if [[ "$GROUP" == "1" ]]; then
     # Unit tests
     tox -- --use-venv -m unit -n auto
     # Integration tests (not the ones for 'pip install')
     tox -- -m integration -n auto --duration=5 -k "not test_install" \
-        --use-venv $RESOLVER_SWITCH
+        --use-venv $RESOLVER_SWITCH $LAZY_WHEEL_SWITCH
 elif [[ "$GROUP" == "2" ]]; then
     # Separate Job for running integration tests for 'pip install'
     tox -- -m integration -n auto --duration=5 -k "test_install" \
-        --use-venv $RESOLVER_SWITCH
+        --use-venv $RESOLVER_SWITCH $LAZY_WHEEL_SWITCH
 elif [[ "$GROUP" == "3" ]]; then
     # Separate Job for tests that fail with the new resolver
     tox -- -m fails_on_new_resolver -n auto --duration=5 \
-        --use-venv $RESOLVER_SWITCH --new-resolver-runtests
+        --use-venv $RESOLVER_SWITCH --new-resolver-runtests $LAZY_WHEEL_SWITCH
 else
     # Non-Testing Jobs should run once
     tox