current status

const_test.py

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+import pytest
+
+
+
+from const import gray_1d
+
+# Happy path tests with various realistic test values
+@pytest.mark.parametrize("k, symbol, expected", [
+    (0, 0, 0),  # k=0 case
+    (1, 0, 1),  # k=1, symbol=0 case
+    (1, 1, -1),  # k=1, symbol=1 case
+    (2, 0, 3),  # k=2, symbol=0 case
+    (2, 1, 1),  # k=2, symbol=1 case
+    (2, 2, -3),  # k=2, symbol=2 case
+    (2, 3, -1),  # k=2, symbol=3 case
+], ids=[
+    "k=0_symbol=0",
+    "k=1_symbol=0",
+    "k=1_symbol=1",
+    "k=2_symbol=0",
+    "k=2_symbol=1",
+    "k=2_symbol=2",
+    "k=2_symbol=3"
+])
+def test_gray_1d_happy_path(k, symbol, expected):
+    # Act
+    result = gray_1d(k, symbol)
+
+    # Assert
+    assert result == expected
+
+# Various edge cases
+@pytest.mark.parametrize("k, symbol, expected", [
+    (3, 0, 7),  # k=3, symbol=0 case
+    (3, 7, -3),  # k=3, symbol=7 case
+    (4, 0, 15),  # k=4, symbol=0 case
+    (4, 15, -5),  # k=4, symbol=15 case
+], ids=[
+    "k=3_symbol=0",
+    "k=3_symbol=7",
+    "k=4_symbol=0",
+    "k=4_symbol=15"
+])
+def test_gray_1d_edge_cases(k, symbol, expected):
+    # Act
+    result = gray_1d(k, symbol)
+
+    # Assert
+    assert result == expected
+
+# Various error cases
+@pytest.mark.parametrize("k, symbol, exception", [
+    (-1, 0, ValueError),  # k is negative
+    (1, -1, ValueError),  # symbol is negative
+    (1, 2, ValueError),  # symbol is out of range for k=1
+    (2, 4, ValueError),  # symbol is out of range for k=2
+], ids=[
+    "k_negative",
+    "symbol_negative",
+    "symbol_out_of_range_k1",
+    "symbol_out_of_range_k2"
+])
+def test_gray_1d_error_cases(k, symbol, exception):
+    # Act and Assert
+    with pytest.raises(exception):
+        gray_1d(k, symbol)
+