initial commit with 2024 materials

tests/test_first.py

@@ -0,0 +1,19 @@
+from first import times_3
+
+
+def test_times_3_integer():
+    value = 7
+    expected = 21
+
+    result = times_3(value)
+
+    assert result == expected
+
+
+def test_times_3_string():
+    value = 'wow'
+    expected = 'wowwowwow'
+
+    result = times_3(value)
+
+    assert result == expected

tests/test_local_maxima.py

@@ -0,0 +1,107 @@
+import numpy as np
+import pytest
+
+from local_maxima import find_maxima
+
+
+def test_find_maxima():
+    values = [1, 3, -2, 0, 2, 1]
+    expected = [1, 4]
+    maxima = find_maxima(values)
+    assert maxima == expected
+
+
+def test_find_maxima_edges():
+    values = [4, 2, 1, 0, 1, 5]
+    expected = [0, 5]
+    maxima = find_maxima(values)
+    assert maxima == expected
+
+
+def test_find_maxima_empty():
+    values = []
+    expected = []
+    maxima = find_maxima(values)
+    assert maxima == expected
+
+
+def test_find_maxima_plateau():
+    values = [1, 2, 2, 1]
+    expected = [1]
+    maxima = find_maxima(values)
+    assert maxima == expected
+
+
+def test_find_maxima_not_a_plateau():
+    values = [1, 2, 2, 3, 1]
+    expected = [3]
+    maxima = find_maxima(values)
+    assert maxima == expected
+
+
+# the tests below here fail, can you get them to pass?
+
+
+def test_find_maxima_correct_order():
+    # TASK: get this test to pass
+    values = [2, 1, 5, 1, 9]
+    expected = [0, 2, 4]
+    maxima = find_maxima(values)
+    assert maxima == expected
+
+
+def test_find_maxima_one_value():
+    # TASK: get this test to pass
+    values = [1]
+    expected = [0]
+    maxima = find_maxima(values)
+    assert maxima == expected
+
+
+def test_find_maxima_long_plateau():
+    # TASK: Change the implementation for when there is a plateau
+    # for uneven plateau length, return the middle index, e.g. [1, 2, *2*, 2, 1] --> [2]
+    # for even plateau length, return the index left of the middle  e.g. [1, 2, *2*, 2, 2, 1] --> [2]
+    values = [1, 2, 2, 2, 2, 2, 1, 8, 0]
+    expected = [3, 7]
+    maxima = find_maxima(values)
+    assert maxima == expected
+
+
+def test_find_maxima_plateau_at_end():
+    # TASK: make sure plateaus at the end are handled properly (see test above)
+    values = [1, 2, 2]
+    expected = [1]
+    maxima = find_maxima(values)
+    assert maxima == expected
+
+
+def test_find_maxima_plateau_at_start():
+    # TASK: make sure plateaus at the start are handled properly (see test above)
+    values = [1, 1, 0, 0]
+    expected = [0]
+    maxima = find_maxima(values)
+    assert maxima == expected
+
+
+def test_find_maxima_all_same_values():
+    # TASK: implement a check for lists where there is no local maximum
+    values = [1, 1]
+    expected = [0]
+    maxima = find_maxima(values)
+    assert maxima == expected
+
+
+def test_find_maxima_letters():
+    # stings can be evaluated with > and <, who knew!
+    # Find an easy solution so that both "t"s are recognised as local maxima
+    values = ["T", "e", "s", "t", "s", "!"]
+    expected = [0, 3]
+    maxima = find_maxima(values)
+    assert maxima == expected
+
+
+def test_find_maxima_new_inputs_to_make_current_function_fail():
+    # should you actually be done with all tests, then you can think of other cases where the current function fails
+    # and write tests for them and fix them
+    assert False