add a test

Author: nikalra

mlir/test/python/ir/module.py

@@ -1,6 +1,8 @@
 # RUN: %PYTHON %s | FileCheck %s
 
 import gc
+from pathlib import Path
+from tempfile import NamedTemporaryFile
 from mlir.ir import *
 
 
@@ -27,6 +29,24 @@ def testParseSuccess():
     print(str(module))
 
 
+# Verify successful parse from file.
+# CHECK-LABEL: TEST: testParseFromFileSuccess
+# CHECK: module @successfulParse
+@run
+def testParseFromFileSuccess():
+    ctx = Context()
+    with NamedTemporaryFile(mode="w") as tmp_file:
+        tmp_file.write(r"""module @successfulParse {}""")
+        tmp_file.flush()
+        module = Module.parse(Path(tmp_file.name), ctx)
+        assert module.context is ctx
+        print("CLEAR CONTEXT")
+        ctx = None  # Ensure that module captures the context.
+        gc.collect()
+        module.dump()  # Just outputs to stderr. Verifies that it functions.
+        print(str(module))
+
+
 # Verify parse error.
 # CHECK-LABEL: TEST: testParseError
 # CHECK: testParseError: <