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import random | ||
import matplotlib.pyplot as plt | ||
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def f_327(points: int): | ||
""" | ||
Generate a plot of random numbers such that indices are on the x-axis and generated numbers are on the y-axis. | ||
Parameters: | ||
- points (int): Number of random points to generate. | ||
Returns: | ||
- Returns a tuple containing: | ||
- A list of generated random numbers. | ||
- A matplotlib Axes object representing the plot. | ||
Requirements: | ||
- random | ||
- matplotlib.pyplot | ||
Example: | ||
>>> import random | ||
>>> random.seed(0) | ||
>>> f_327(5) | ||
([0.8444218515250481, 0.7579544029403025, 0.420571580830845, 0.25891675029296335, 0.5112747213686085], <Axes: >) | ||
>>> f_327(3) | ||
([0.4049341374504143, 0.7837985890347726, 0.30331272607892745], <Axes: >) | ||
""" | ||
x = list(range(points)) | ||
y = [random.random() for _ in range(points)] | ||
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_, ax = plt.subplots() | ||
ax.plot(x, y) | ||
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return y, ax | ||
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import unittest | ||
import random | ||
class TestCases(unittest.TestCase): | ||
def test_case_1(self): | ||
random.seed(0) | ||
y, _ = f_327(5) | ||
# Test correct number of points are generated | ||
self.assertEqual(len(y), 5) | ||
def test_case_2(self): | ||
random.seed(0) | ||
y, _ = f_327(5) | ||
# Test expected values | ||
self.assertTrue(all(0 <= num <= 1 for num in y)) | ||
self.assertAlmostEqual( | ||
y, | ||
[ | ||
0.8444218515250481, | ||
0.7579544029403025, | ||
0.420571580830845, | ||
0.25891675029296335, | ||
0.5112747213686085, | ||
], | ||
) | ||
def test_case_3(self): | ||
random.seed(0) | ||
# Test incorrect data types | ||
with self.assertRaises(TypeError): | ||
f_327("5") | ||
with self.assertRaises(TypeError): | ||
f_327([]) | ||
with self.assertRaises(TypeError): | ||
f_327(None) | ||
def test_case_4(self): | ||
random.seed(0) | ||
# Test handling 1 number | ||
y, ax = f_327(1) | ||
# Assert that 1 random number is generated | ||
self.assertEqual(len(y), 1) | ||
# Assert that the plot has the correct x and y data | ||
self.assertEqual(list(ax.lines[0].get_xdata()), [0]) | ||
self.assertEqual(list(ax.lines[0].get_ydata()), y) | ||
def test_case_5(self): | ||
random.seed(0) | ||
# Test handling no random numbers | ||
y, ax = f_327(0) | ||
self.assertEqual(len(y), 0) | ||
# Assert that the plot has no data | ||
self.assertEqual(list(ax.lines[0].get_xdata()), []) | ||
self.assertEqual(list(ax.lines[0].get_ydata()), []) | ||
def tearDown(self): | ||
plt.close("all") |
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import sqlite3 | ||
import pandas as pd | ||
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def f_328(db_file: str, query: str) -> pd.DataFrame: | ||
"""Query an SQLite database and return the results. | ||
This function connects to a given SQLite database, executes a given SQL query, | ||
and returns the results as a pandas DataFrame. | ||
Parameters: | ||
- db_file (str): Path to the SQLite database file. | ||
- query (str): SQL query to execute. | ||
Returns: | ||
- pd.DataFrame: A DataFrame containing the results of the executed query. | ||
Requirements: | ||
- sqlite3 | ||
- pandas | ||
Example: | ||
>>> db_file = 'sample_database.db' | ||
>>> df = f_328(db_file, "SELECT * FROM users WHERE name = 'John Doe'") | ||
pd.DataFrame: | ||
id name age | ||
-- ---------- --- | ||
.. John Doe .. | ||
>>> df = f_328(db_file, "SELECT age, COUNT(*) AS count FROM users GROUP BY age") | ||
pd.DataFrame: | ||
age count | ||
--- ----- | ||
25 3 | ||
""" | ||
with sqlite3.connect(db_file) as conn: | ||
return pd.read_sql_query(query, conn) | ||
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import unittest | ||
import sqlite3 | ||
from faker import Faker | ||
import os | ||
class TestCases(unittest.TestCase): | ||
fake = Faker() | ||
specific_names = [ | ||
"John Doe", | ||
"Jane Smith", | ||
"Alice Brown", | ||
"Bob White", | ||
"Charlie Green", | ||
] | ||
specific_ages = [25, 30, 35, 40, 45] | ||
@classmethod | ||
def setUpClass(cls): | ||
"""Set up test data before running tests.""" | ||
cls.db_file = cls.generate_test_data_with_file() | ||
@staticmethod | ||
def generate_test_data_with_file() -> str: | ||
"""Generate test data and save it to a temporary SQLite database file.""" | ||
db_file = "./temp_test_db.sqlite3" | ||
if os.path.exists(db_file): | ||
os.remove(db_file) | ||
conn = sqlite3.connect(db_file) | ||
create_table_query = """ | ||
CREATE TABLE users ( | ||
id INTEGER PRIMARY KEY, | ||
name TEXT NOT NULL, | ||
age INTEGER NOT NULL | ||
) | ||
""" | ||
conn.execute(create_table_query) | ||
for _ in range(100): | ||
name = TestCases.fake.name() | ||
age = TestCases.fake.random_int(min=20, max=70) | ||
conn.execute("INSERT INTO users (name, age) VALUES (?, ?)", (name, age)) | ||
for name, age in zip(TestCases.specific_names, TestCases.specific_ages): | ||
conn.execute("INSERT INTO users (name, age) VALUES (?, ?)", (name, age)) | ||
conn.commit() | ||
conn.close() | ||
return db_file | ||
def test_case_1(self): | ||
"""Test fetching all users.""" | ||
df = f_328(self.db_file, "SELECT * FROM users") | ||
self.assertEqual(len(df), 100 + len(self.specific_names)) | ||
for name in self.specific_names: | ||
self.assertIn(name, df["name"].values) | ||
def test_case_2(self): | ||
"""Test fetching specific users based on names.""" | ||
names_as_strings = "', '".join(self.specific_names) | ||
df = f_328( | ||
self.db_file, | ||
f"SELECT name, age FROM users WHERE name IN ('{names_as_strings}')", | ||
) | ||
for name in self.specific_names: | ||
self.assertIn(name, df["name"].values) | ||
for age in self.specific_ages: | ||
self.assertIn(age, df["age"].values) | ||
def test_case_3(self): | ||
"""Test fetching users based on age condition.""" | ||
age_limit = self.fake.random_int(min=20, max=60) | ||
df = f_328(self.db_file, f"SELECT * FROM users WHERE age > {age_limit}") | ||
self.assertTrue(all(df["age"] > age_limit)) | ||
def test_case_4(self): | ||
"""Test fetching users and sorting by name.""" | ||
df = f_328(self.db_file, "SELECT * FROM users ORDER BY name") | ||
sorted_names = sorted(df["name"].tolist()) | ||
self.assertListEqual(df["name"].tolist(), sorted_names) | ||
def test_case_5(self): | ||
"""Test fetching users based on age and sorting by age.""" | ||
age_limit = self.fake.random_int(min=20, max=30) | ||
df = f_328( | ||
self.db_file, | ||
f"SELECT * FROM users WHERE age < {age_limit} ORDER BY age DESC", | ||
) | ||
self.assertTrue(all(df["age"] < age_limit)) | ||
self.assertTrue( | ||
all(df["age"].iloc[i] >= df["age"].iloc[i + 1] for i in range(len(df) - 1)) | ||
) | ||
@classmethod | ||
def tearDownClass(cls): | ||
"""Clean up test data after running tests.""" | ||
os.remove(cls.db_file) |
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import pandas as pd | ||
import json | ||
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def f_329(data: dict, output_path: str = "./default_data_output.json") -> str: | ||
"""Converts the given DataFrame to a dictionary, dropping the column named 'c' | ||
if it exists, and then saves it as a JSON file. | ||
Parameters: | ||
- data (dict): The input data dictionary. | ||
- output_path (str, optional): The path where the JSON file should be saved. Default is './default_data_output.json'. | ||
Returns: | ||
- str: Path where the JSON file was saved. | ||
Requirements: | ||
- pandas | ||
- json | ||
Example: | ||
>>> f_329({'a': [1,2], 'b': [3,4], 'c': [5,6]}) | ||
'./default_data_output.json' | ||
>>> f_329({'a': [1,2], 'b': [3,4], 'c': [5,6]}, 'custom/path/results.json') | ||
'custom/path/results.json' | ||
""" | ||
df = pd.DataFrame(data) | ||
# Drop column named 'c' if it exists | ||
df = df.drop(columns="c", errors="ignore") | ||
# Convert the DataFrame to dictionary | ||
data_dict = df.to_dict(orient="dict") | ||
# Save the dictionary as a JSON file | ||
with open(output_path, "w") as file: | ||
json.dump(data_dict, file) | ||
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return output_path | ||
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import unittest | ||
import pandas as pd | ||
import json | ||
import os | ||
class TestCases(unittest.TestCase): | ||
def read_json_file(self, path): | ||
# Helper function to read content from a JSON file | ||
with open(path, "r") as f: | ||
return json.load(f) | ||
def tearDown(self): | ||
# Cleanup procedure after each test to remove generated files | ||
files_to_remove = [ | ||
"./default_data_output.json", | ||
"./custom_data_output_2.json", | ||
"./custom_data_output_3.json", | ||
"./custom_data_output_4.json", | ||
"./custom_data_output_5.json", | ||
] | ||
for file in files_to_remove: | ||
if os.path.exists(file): | ||
os.remove(file) | ||
def convert_keys_to_str(self, dictionary): | ||
# Convert dictionary keys to strings recursively | ||
if not isinstance(dictionary, dict): | ||
return dictionary | ||
return {str(k): self.convert_keys_to_str(v) for k, v in dictionary.items()} | ||
def test_case_1(self): | ||
# Test basic DataFrame with column "c" | ||
data = {"a": [1, 2], "b": [3, 4], "c": [5, 6]} | ||
df = pd.DataFrame(data) | ||
output_path = f_329(data) | ||
self.assertTrue(os.path.exists(output_path)) | ||
expected_data = self.convert_keys_to_str( | ||
df.drop(columns="c").to_dict(orient="dict") | ||
) | ||
self.assertEqual(self.read_json_file(output_path), expected_data) | ||
def test_case_2(self): | ||
# Test DataFrame with non-numeric data and column "c" | ||
data = {"name": ["Alice", "Bob"], "country": ["USA", "Canada"], "c": ["x", "y"]} | ||
df = pd.DataFrame(data) | ||
custom_path = "./custom_data_output_2.json" | ||
output_path = f_329(data, custom_path) | ||
self.assertTrue(os.path.exists(output_path)) | ||
expected_data = self.convert_keys_to_str( | ||
df.drop(columns="c").to_dict(orient="dict") | ||
) | ||
self.assertEqual(self.read_json_file(output_path), expected_data) | ||
def test_case_3(self): | ||
# Test DataFrame with multiple columns and no column "c" | ||
data = {"age": [25, 30], "height": [170, 175]} | ||
df = pd.DataFrame(data) | ||
custom_path = "./custom_data_output_3.json" | ||
output_path = f_329(data, custom_path) | ||
self.assertTrue(os.path.exists(output_path)) | ||
expected_data = self.convert_keys_to_str(df.to_dict(orient="dict")) | ||
self.assertEqual(self.read_json_file(output_path), expected_data) | ||
def test_case_4(self): | ||
# Test DataFrame with mixed data types including column "c" | ||
data = { | ||
"id": [1, 2], | ||
"is_student": [True, False], | ||
"grades": ["A", "B"], | ||
"c": [0.5, 0.8], | ||
} | ||
df = pd.DataFrame(data) | ||
output_path = f_329(data) | ||
self.assertTrue(os.path.exists(output_path)) | ||
expected_data = self.convert_keys_to_str( | ||
df.drop(columns="c").to_dict(orient="dict") | ||
) | ||
self.assertEqual(self.read_json_file(output_path), expected_data) | ||
def test_case_5(self): | ||
# Test an empty DataFrame | ||
data = {} | ||
df = pd.DataFrame(data) | ||
custom_path = "./custom_data_output_5.json" | ||
output_path = f_329(data, custom_path) | ||
self.assertTrue(os.path.exists(output_path)) | ||
expected_data = self.convert_keys_to_str(df.to_dict(orient="dict")) | ||
self.assertEqual(self.read_json_file(output_path), expected_data) |
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