simplified test_package

No need to actually compile something with this tool
we simply need to know if it runs.

The win_bash for the run needs to be set explicitly
due to the conf not working properly in the test_package
see conan-io/conan#11975

recipes/autoconf/all/test_package/conanfile.py

@@ -1,47 +1,29 @@
-from conans import AutoToolsBuildEnvironment, ConanFile, tools
-from conan.tools.microsoft import is_msvc
-import contextlib
-import os
-import shutil
+from os import environ
 
-required_conan_version = ">=1.45.0"
+from conan import ConanFile
+from conan.tools.build import can_run
+
+required_conan_version = ">=1.50.0"
 
 
 class TestPackageConan(ConanFile):
     settings = "os", "compiler", "build_type", "arch"
-    exports_sources = "configure.ac", "config.h.in", "Makefile.in", "test_package_c.c", "test_package_cpp.cpp",
+    generators = "VirtualBuildEnv"
     test_type = "explicit"
+    win_bash = True
 
     @property
     def _settings_build(self):
         return getattr(self, "settings_build", self.settings)
 
     def build_requirements(self):
-        self.build_requires(self.tested_reference_str)
-        if self._settings_build.os == "Windows" and not tools.get_env("CONAN_BASH_PATH"):
-            self.build_requires("msys2/cci.latest")
-
-    @contextlib.contextmanager
-    def _build_context(self):
-        if is_msvc(self):
-            with tools.vcvars(self):
-                with tools.environment_append({"CC": "cl -nologo", "CXX": "cl -nologo",}):
-                    yield
-        else:
-            yield
+        self.tool_requires(self.tested_reference_str)
+        if self._settings_build.os == "Windows" and not environ.get("CONAN_BASH_PATH"):
+            self.tool_requires("msys2/cci.latest")
 
     def build(self):
-        for src in self.exports_sources:
-            shutil.copy(os.path.join(self.source_folder, src), self.build_folder)
-        self.run("{} --verbose".format(os.environ["AUTOCONF"]),
-                 win_bash=tools.os_info.is_windows, run_environment=True)
-        self.run("{} --help".format(os.path.join(self.build_folder, "configure").replace("\\", "/")),
-                 win_bash=tools.os_info.is_windows, run_environment=True)
-        autotools = AutoToolsBuildEnvironment(self, win_bash=tools.os_info.is_windows)
-        with self._build_context():
-            autotools.configure()
-            autotools.make()
+        pass
 
     def test(self):
-        if not tools.cross_building(self):
-            self.run(os.path.join(".", "test_package"), run_environment=True)
+        if can_run(self):
+            self.run("autoconf --version", run_environment=True, env="conanbuild", win_bash=self.settings.os == "Windows")