tests(python): refactor/add/reduce tests

- We tests few things that aren't costly to tests like wrappers
- we reduce encrypted computation tests, as it's already done in cpp
  tests, while we add tests to cover supported types

compiler/tests/python/test_utils.py

@@ -0,0 +1,17 @@
+import re
+import importlib.util
+from concrete.compiler.utils import lookup_runtime_lib
+
+
+def test_runtime_lib_path():
+    # runtime library path should be found in case the package is installed
+    compiler_spec = importlib.util.find_spec("concrete.compiler")
+    # assuming installed packages should have python and site-packages as part of the path
+    if compiler_spec and re.match(r".*python.*site-packages.*", compiler_spec.origin):
+        runtime_lib_path = lookup_runtime_lib()
+        assert isinstance(
+            runtime_lib_path, str
+        ), f"runtime library path should be of type str, not {type(runtime_lib_path)}"
+        assert re.match(
+            r".*libConcretelangRuntime.*\.(so|dylib)$", runtime_lib_path
+        ), f"wrong runtime library path: {runtime_lib_path}"