chore: added missing bracket

README.md

@@ -15,7 +15,7 @@ Repository for CDS-2020 Programming and Promt Engineering II
 |build|Build-System, Dependencies|build: update requirements.txt|
 
 # Codewars
-|Title|Source (src/codewars/)|Test (test/test_codewars/)|URL|
+|Title|Source (src/codewars/)|Test (tests/test_codewars/)|URL|
 |-|-|-|-|
 |Find the force of gravity between two objects|kata_force_of_gravity.py|test_force_of_gravity.py|[5b609ebc8f47bd595e000627](https://www.codewars.com/kata/5b609ebc8f47bd595e000627)|
 |The Lamp: Revisited|kata_the_lamp.py|test_the_lamp.py|[570e6e32de4dc8a8340016dd](https://www.codewars.com/kata/570e6e32de4dc8a8340016dd)|
@@ -31,3 +31,5 @@ Repository for CDS-2020 Programming and Promt Engineering II
 |Next bigger number with the same digits|kata_next_bigger_number_same_digits.py|test_next_bigger_number_same_digits.py|[55983863da40caa2c900004e](https://www.codewars.com/kata/55983863da40caa2c900004e)|
 |Snail|kata_snail.py|test_snail.py|[521c2db8ddc89b9b7a0000c1](https://www.codewars.com/kata/521c2db8ddc89b9b7a0000c1)|
 |Chinese Numeral Encoder|kata_chinese_numeral_encoder.py|test_chinese_numeral_encoder.py|[52608f5345d4a19bed000b31](https://www.codewars.com/kata/52608f5345d4a19bed000b31)|
+|RGB To Hex Conversion|kata_rgb_2_hex.py|test_rgb_2_hex.py|[513e08acc600c94f01000001](https://www.codewars.com/kata/513e08acc600c94f01000001)|
+|Most frequently used words in a text|kata_most_words_used.py|test_most_words_used.py|[51e056fe544cf36c410000fb](https://www.codewars.com/kata/51e056fe544cf36c410000fb)|

src/codewars/kata_most_words_used.py

@@ -0,0 +1,2 @@
+def top_3_words(text):
+    return None

src/codewars/kata_rgb_2_hex.py

@@ -0,0 +1,11 @@
+def rgb(r, g, b):
+    rgb = {"r": int(r), "g": int(g), "b": int(b)}
+
+    for decimal in rgb:
+        rgb[decimal] = min(255, max(rgb[decimal], 0))
+        rgb[decimal] = hex(rgb[decimal]).split("x")[-1]
+
+        if len(rgb[decimal]) == 1:
+            rgb[decimal] = "0" + rgb[decimal]
+
+    return f"{rgb['r']}{rgb['g']}{rgb['b']}".upper()

src/tutorial/hints/load_scores.py

@@ -0,0 +1,8 @@
+def load_scores(data: list[tuple[str, str | int]]) -> dict:
+    result = {}
+    for name, points in data:
+        result[name] = int(points)
+    return result
+
+
+print(load_scores([("Sandro", "54"), ("Arif", "45"), ("Sidney", 89)]))

src/tutorial/testing/practice/bmi.py

@@ -0,0 +1,16 @@
+# Task: Schreibt für die folgende Aufgabe einige Unit-Test. Nutzt dazu für den Happy-Path einen parametrisierten Test für
+# einige valide Inputs und Outputs
+
+
+def calculate_bmi(weight_kg: float, height_m: float) -> float:
+    """
+    Berechnet den Body Mass Index (BMI).
+    BMI = Gewicht (kg) / Grösse (m)^2
+    """
+    if weight_kg <= 0 or height_m <= 0:
+        raise ValueError("Gewicht und Grösse müssen positiv sein.")
+    return weight_kg / (height_m**2)
+
+
+if __name__ == "__main__":
+    print(calculate_bmi(weight_kg=72, height_m=1.84))

src/tutorial/testing/practice/catching_exeptions.py

@@ -0,0 +1,29 @@
+# TASK: Schreibe sinnvolle Tests für die folgende Funktion
+# Schreibe Tests für die korrekte Struktur des Outputs der Funktion
+# Teste, ob bei Übergabe von 'falschem' Parameter data eine Exception geworfen wird
+
+# https://docs.python.org/3/library/exceptions.html
+# Passing arguments of the wrong type (e.g. passing a list when an int is expected) should result in a TypeError,
+# but passing arguments with the wrong value (e.g. a number outside expected boundaries) should result in a ValueError.
+
+
+def double_integers(data: list[int]) -> list[int]:
+    """Doubles a list of given integers
+
+    :param data: list of integers
+    :return: list of doubled integers
+    """
+
+    if not isinstance(data, list):
+        raise TypeError("data must be a list")
+    if not all([isinstance(i, int) for i in data]):
+        raise TypeError("data may contain only integers")
+
+    return [i * 2 for i in data]
+
+
+if __name__ == "__main__":
+
+    data = [1, 2, 3]
+    result = double_integers(data)
+    print(result)

src/tutorial/testing/practice/kata_list_filtering.py

@@ -0,0 +1,14 @@
+# https://www.codewars.com/kata/53dbd5315a3c69eed20002dd
+# level: 7 kyu
+
+# In this kata you will create a function that takes a list of non-negative integers and strings and returns a new
+# list with the strings filtered out.
+#
+# Example
+# filter_list([1,2,'a','b']) == [1,2]
+# filter_list([1,'a','b',0,15]) == [1,0,15]
+# filter_list([1,2,'aasf','1','123',123]) == [1,2,123]
+
+
+def filter_list(a_list):
+    return [i for i in a_list if isinstance(i, int)]

src/tutorial/testing/practice/pandas_filter_rows.py

@@ -0,0 +1,37 @@
+# https://www.codewars.com/kata/5ea2baed9345eb001e8ce394
+# 7 kyu
+
+# Input parameters
+
+# dataframe: pandas.DataFrame object
+# col: target column
+# func: filter function
+
+# Task
+# Your function must return a new pandas.DataFrame object with the same columns as the original input. However,
+# include only the rows whose cell values in the designated column evaluate to False by func.
+#
+# Input DataFrame will never be empty. The target column will always be one of the dataframe columns. Filter function
+# will be a valid one. Index value must remain the same.
+
+# REMARK: leichte Modifikation -> es wird ausgegeben, was in der Funktion definiert wurde (True) und nicht umgekehrt.
+
+import pandas as pd
+
+
+def filter_dataframe(df, col, func):
+    if col not in df.columns:
+        raise ValueError(f"Column '{col}' is not present in the DataFrame.")
+    mask = df[col].apply(func)
+    return df[mask]
+
+
+if __name__ == "__main__":
+
+    df = pd.DataFrame(
+        {
+            "A": [1, 2, 3, 4, 5],
+        }
+    )
+
+    print(filter_dataframe(df, "A", lambda x: x >= 4))

src/tutorial/testing/practice/vowel_count.py

@@ -0,0 +1,18 @@
+# https://www.codewars.com/kata/54ff3102c1bad923760001f3
+# level: 7 kyu
+
+# Return the number (count) of vowels in the given string.
+# We will consider a, e, i, o, u as vowels for this Kata (but not y).
+# The input string will only consist of lower case letters and/or spaces.
+
+
+def get_count(inputStr):
+    num_vowels = 0
+    for char in inputStr:
+        if char in "aeiouAEIOU":
+            num_vowels = num_vowels + 1
+    return num_vowels
+
+
+if __name__ == "__main__":
+    print(get_count("Hello World"))

src/tutorial/testing/shop/pricing.py

@@ -0,0 +1,6 @@
+def discount_price(price: float, percent: float) -> float:
+    if price < 0:
+        raise ValueError("Price must be >= 0")
+    if not 0 <= percent <= 100:
+        raise ValueError("Percent must be between 0 and 100")
+    return price - price * percent / 100

tests/tests_codewars/test_most_words_used.py

@@ -0,0 +1,5 @@
+from src.codewars.kata_most_words_used import top_3_words
+
+
+def test_top_3_words():
+    assert top_3_words() == 0

tests/tests_codewars/test_rgb_2_hex.py

@@ -0,0 +1,16 @@
+from src.codewars.kata_rgb_2_hex import rgb
+import pytest
+
+
+@pytest.mark.parametrize(
+    ("r", "g", "b", "expected"),
+    [
+        (0, 0, 0, "000000"),
+        (1, 2, 3, "010203"),
+        (255, 255, 255, "FFFFFF"),
+        (254, 253, 252, "FEFDFC"),
+        (-20, 275, 125, "00FF7D"),
+    ],
+)
+def test_rgb_2_hex(r, g, b, expected):
+    assert rgb(r, g, b) == expected

tests/tests_tutorial/shop/test_pricing.py

@@ -0,0 +1,21 @@
+from src.tutorial.testing.shop.pricing import discount_price
+import pytest
+
+
+def test_discount_price_reduces_price():
+    result = discount_price(100.0, 20.0)
+    assert result == 80
+
+    assert discount_price(100.0, 50.0) == 50
+    assert discount_price(100.0, 0) == 100
+    assert discount_price(100.0, 100) == 0
+
+
+def test_negative_orice_raises_value_error() -> None:
+    with pytest.raises(ValueError):
+        discount_price(-100.0, 50.0) is ValueError
+
+
+def test_percent_above_hundered_message() -> None:
+    with pytest.raises(ValueError, match="between 0 and 100"):
+        discount_price(100.0, 150.0)

tests/tests_tutorial/test_catching_exeptions.py

@@ -0,0 +1,24 @@
+from src.tutorial.testing.practice.catching_exeptions import double_integers
+import pytest
+
+
+@pytest.mark.parametrize(
+    ("input", "expected"),
+    [
+        ([1, 2, 3], [2, 4, 6]),
+        ([5], [10]),
+        ([100, 900, -2], [200, 1800, -4]),
+    ],
+)
+def test_double_integers(input, expected):
+    assert double_integers(input) == expected
+
+
+def test_argument_is_list():
+    with pytest.raises(TypeError, match="data must be a list"):
+        double_integers(4)
+
+
+def test_list_with_integers_only():
+    with pytest.raises(TypeError, match="data may contain only integers"):
+        double_integers([4, 3, 2, "str"])

tests/tests_tutorial/test_kata_list_filtering.py

@@ -0,0 +1,24 @@
+from src.tutorial.testing.practice.kata_list_filtering import filter_list
+import pytest
+
+
+@pytest.mark.parametrize(
+    ("input", "expected"),
+    [
+        ([3, 5, "m", "0", 7], [3, 5, 7]),
+        (["3", "5", "m", "0", "f"], []),
+        ([1, 2, 3], [1, 2, 3]),
+    ],
+)
+def test_filter_list(input, expected):
+    assert filter_list(input) == expected
+
+
+def test_parameter_is_list():
+    input = [7, 9, 0]
+    result = isinstance(input, list)
+    assert result
+
+    input = 9
+    result = isinstance(input, list)
+    assert not result

tests/tests_tutorial/test_pandas_filter_rows.py

@@ -0,0 +1,20 @@
+from src.tutorial.testing.practice.pandas_filter_rows import filter_dataframe
+import pytest
+import pandas as pd
+
+
+@pytest.fixture
+def standard_df():
+    df = pd.DataFrame(
+        {
+            "A": [1, 2, 3, 4, 5],
+            "B": [0, 2, 2, 4, 5],
+            "C": [1, 2, 3, 8, 5],
+        }
+    )
+    return df
+
+
+def test_col_not_in_dataframe(standard_df):
+    with pytest.raises(ValueError):
+        filter_dataframe(standard_df, "Z", lambda x: x >= 4)