Add tests for --xxx-options warnings and deprecation

Author: sbidoul

tests/functional/test_install.py

@@ -842,6 +842,8 @@ def test_install_global_option(script: PipTestEnvironment) -> None:
     )
     assert "INITools==0.1\n" in result.stdout
     assert not result.files_created
+    assert "Implying --no-binary=:all:" in result.stderr
+    assert "Consider using --config-settings" in result.stderr
 
 
 def test_install_with_hacked_egg_info(

tests/functional/test_install_reqs.py

@@ -342,7 +342,7 @@ def test_install_option_in_requirements_file_overrides_cli(
     reqs_file = script.scratch_path.joinpath("reqs.txt")
     reqs_file.write_text("simple --install-option='-O0'")
 
-    script.pip(
+    result = script.pip(
         "install",
         "--no-index",
         "-f",
@@ -355,6 +355,9 @@ def test_install_option_in_requirements_file_overrides_cli(
     simple_args = simple_sdist.args()
     assert "install" in simple_args
     assert simple_args.index("-O1") < simple_args.index("-O0")
+    assert "Implying --no-binary=:all:" in result.stderr
+    assert "Consider using --config-settings" in result.stderr
+    assert "--install-option is deprecated" in result.stderr
 
 
 def test_constraints_not_installed_by_default(