The following two functions are python code used for data analysis, PLEASE write a unit test for both of them

def function1(): "import and clean data" df = pd.read_csv("df.csv") df = df.dropna() df.info()

df['Q'] = np.exp(oj1['logQ'])

df['price'] = np.exp(oj1['log_price']) df.info()

def function2(df): "data visualization"

sns.boxplot(data=df, x="brand", y="price") plt.show()

sns.boxplot(data=df, x="brand", y="logQ") plt.show()

sns.boxplot(data=df, x="feat", y="logQ", hue='brand') plt.legend(bbox_to_anchor=(1.02, 1), loc='upper left', borderaxespad=0) plt.show()

sns.jointplot(x = df['price'] , y = df['logQ'], hue=df['brand']) plt.show()

sns.jointplot(x = df['log_price'] , y = df['logQ'], hue=df['brand']) plt.show()