Add get_safe None comparison tests (#17411)

* Add get_safe None comparison tests

* Fix

test/integration/options/options_test.py

@@ -773,3 +773,17 @@ def test_options_warnings(self, important):
             """)
         assert expected in c.out
         assert "WARN: risk: There are options conflicts in the dependency graph" in c.out
+
+
+def test_get_safe_none_option_checks():
+    tc = TestClient(light=True)
+    tc.save({"conanfile.py": GenConanfile("foo", "1.0")
+            .with_package("self.output.info(f'get_safe is None: {self.options.get_safe(\"myoption\") is None}')",
+                          "self.output.info(f'get_safe is not None: {self.options.get_safe(\"myoption\") is not None}')",
+                          "self.output.info(f'get_safe == None: {self.options.get_safe(\"myoption\") == None}')",
+                          "self.output.info(f'get_safe != None: {self.options.get_safe(\"myoption\") != None}')" )})
+    tc.run("create .")
+    assert "get_safe is None: True" in tc.out
+    assert "get_safe is not None: False" in tc.out
+    assert "get_safe == None: True" in tc.out
+    assert "get_safe != None: False" in tc.out