Skip file system access tests on WASM

Author: agriyakhetarpal

pandas/tests/io/parser/common/test_file_buffer_url.py

@@ -79,6 +79,7 @@ def test_path_path_lib(all_parsers):
     tm.assert_frame_equal(df, result)
 
 
+@td.skip_if_wasm  # limited file system access on WASM
 def test_nonexistent_path(all_parsers):
     # gh-2428: pls no segfault
     # gh-14086: raise more helpful FileNotFoundError

pandas/tests/io/parser/test_c_parser_only.py

@@ -549,6 +549,7 @@ def test_chunk_whitespace_on_boundary(c_parser_only):
     tm.assert_frame_equal(result, expected)
 
 
+@td.skip_if_wasm  # limited file system access on WASM
 def test_file_handles_mmap(c_parser_only, csv1):
     # gh-14418
     #

pandas/tests/io/test_common.py

@@ -22,6 +22,7 @@
 
 import pandas as pd
 import pandas._testing as tm
+import pandas.util._test_decorators as td
 
 import pandas.io.common as icom
 
@@ -162,6 +163,7 @@ def test_iterator(self):
             tm.assert_frame_equal(first, expected.iloc[[0]])
             tm.assert_frame_equal(pd.concat(it), expected.iloc[1:])
 
+    @td.skip_if_wasm  # limited file system access on WASM
     @pytest.mark.parametrize(
         "reader, module, error_class, fn_ext",
         [
@@ -227,6 +229,8 @@ def test_write_missing_parent_directory(self, method, module, error_class, fn_ex
         ):
             method(dummy_frame, path)
 
+
+    @td.skip_if_wasm  # limited file system access on WASM
     @pytest.mark.parametrize(
         "reader, module, error_class, fn_ext",
         [
@@ -381,6 +385,7 @@ def mmap_file(datapath):
 
 
 class TestMMapWrapper:
+    @td.skip_if_wasm  # limited file system access on WASM
     def test_constructor_bad_file(self, mmap_file):
         non_file = StringIO("I am not a file")
         non_file.fileno = lambda: -1
@@ -585,7 +590,7 @@ def test_bad_encdoing_errors():
         with pytest.raises(LookupError, match="unknown error handler name"):
             icom.get_handle(path, "w", errors="bad")
 
-
+@td.skip_if_wasm  # limited file system access on WASM
 def test_errno_attribute():
     # GH 13872
     with pytest.raises(FileNotFoundError, match="\\[Errno 2\\]") as err:

pandas/tests/io/xml/test_xml.py

@@ -484,7 +484,7 @@ def test_empty_string_etree(val):
     with pytest.raises(ParseError, match="no element found"):
         read_xml(data, parser="etree")
 
-
+@td.skip_if_wasm  # limited file system access on WASM
 def test_wrong_file_path(parser):
     filename = os.path.join("does", "not", "exist", "books.xml")