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+import pandas as pd
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+
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+
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+def test_pandas_csv(tmp_path, monkeypatch):
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+ monkeypatch.chdir(tmp_path)
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+ data = {'col1': [1, 2.2, -3.3, 4.0, 5],
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+ 'col2': ['A', 'B', 'C', 'D', 'E']}
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+ df1 = pd.DataFrame(data)
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+
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+ # write to csv file
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+ csv_file_path = tmp_path.joinpath('example.csv')
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+ df1.to_csv(csv_file_path, index=False)
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+
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+ # read from csv file
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+ df2 = pd.read_csv(csv_file_path, on_bad_lines='skip')
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+ assert df2[df2.columns[0]].to_list() == data['col1']
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+ assert df2[df2.columns[1]].to_list() == data['col2']
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+
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+
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+def test_pandas_xlsx(tmp_path, monkeypatch):
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+ monkeypatch.chdir(tmp_path)
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+ data = {'col1': [1, 2.2, -3.3, 4.0, 5],
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+ 'col2': ['A', 'B', 'C', 'D', 'E']}
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+ df1 = pd.DataFrame(data)
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+
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+ # write to xlsx file
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+ xlsx_file_path = tmp_path.joinpath('example.xlsx')
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+ df1.to_excel(xlsx_file_path, index=False)
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+
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+ # read from xlsx file
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+ df2 = pd.read_excel(xlsx_file_path)
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+ assert df2[df2.columns[0]].to_list() == data['col1']
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+ assert df2[df2.columns[1]].to_list() == data['col2']
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+
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+
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+def test_pandas_xlsx_with_sheets(tmp_path, monkeypatch):
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+ monkeypatch.chdir(tmp_path)
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+ data1 = {'col1': [1, 2, 3, 4, 5],
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+ 'col2': ['A', 'B', 'C', 'D', 'E']}
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+ df1 = pd.DataFrame(data1)
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+
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+ data2 = {'col1': [6, 7, 8, 9, 10],
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+ 'col2': ['F', 'G', 'H', 'I', 'J']}
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+ df2 = pd.DataFrame(data2)
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+
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+ # write to xlsx file with sheets
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+ xlsx_file_path = tmp_path.joinpath('example_with_sheets.xlsx')
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+ sheet1 = 'Sheet1'
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+ sheet2 = 'Sheet2'
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+ with pd.ExcelWriter(xlsx_file_path) as excel_writer:
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+ df1.to_excel(excel_writer, sheet_name=sheet1, index=False)
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+ df2.to_excel(excel_writer, sheet_name=sheet2, index=False)
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+
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+ # read from xlsx file with sheets
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+ with pd.ExcelFile(xlsx_file_path) as excel_file:
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+ df1 = pd.read_excel(excel_file, sheet_name=sheet1)
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+ assert df1[df1.columns[0]].to_list() == data1['col1']
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+ assert df1[df1.columns[1]].to_list() == data1['col2']
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+
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+ df2 = pd.read_excel(excel_file, sheet_name=sheet2)
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+ assert df2[df2.columns[0]].to_list() == data2['col1']
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+ assert df2[df2.columns[1]].to_list() == data2['col2']
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