tests added

Author: kastute21

LICENSE 14.48.42 LICENSELICENSE 14.48.42 renamed to LICENSE

@@ -3,7 +3,7 @@ requires = ["hatchling >= 1.26"]
 build-backend = "hatchling.build"
 
 [tool.hatch.build.targets.wheel]
-packages = ["knitting_pattern"]
+packages = ["src/knitting_pattern"]
 
 [project]
 name = "knitting_pattern"
@@ -15,14 +15,23 @@ description = "Kitting pattern calculator tool for my programming course"
 readme = "README.md"
 requires-python = ">=3.9"
 dependencies = [
-    "numpy"
+    "numpy",
+    "Pillow",
+    "streamlit"
 ]
 classifiers = [
     "Programming Language :: Python :: 3",
     "Operating System :: OS Independent",
 ]
-license = "MIT"
-license-files = ["LICEN[CS]E*"]
+license = {text = "MIT"}
+
+[project.optional-dependencies]
+dev = [
+    "pytest",
+]
 
 [project.urls]
 Homepage = "https://github.com/Programming-The-Next-Step-2026/knitting_pattern.git"
+
+[tool.pytest.ini_options]
+pythonpath = ["src"]

pyproject.toml

@@ -0,0 +1,50 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+Created on Wed May 20 15:30:57 2026
+
+@author: kasteivanauskaite
+"""
+from knitting_pattern.math_engine import (
+    generate_panel_grid,
+    apply_back_short_rows_to_grid
+)
+
+# ==========================================
+# 1. GRID GENERATION TESTS
+# ==========================================
+def test_generate_panel_grid():
+    # Create a small 10 stitch wide by 5 row tall test grid
+    grid = generate_panel_grid(width_sts=10, length_rows=5)
+    
+    # Check that it generated exactly 5 rows (Y-axis)
+    assert len(grid) == 5
+    # Check that the first row is exactly 10 stitches wide (X-axis)
+    assert len(grid[0]) == 10
+    # Check that it is initialized with zeroes
+    assert grid[0][0] == 0
+
+
+# ==========================================
+# 2. SHAPING MATRIX MANIPULATION TESTS
+# ==========================================
+def test_apply_back_short_rows_to_grid():
+    # Create a clean 20x10 test grid
+    grid = generate_panel_grid(width_sts=20, length_rows=10)
+    
+    # We will pass in 'mock' shaping data so we know exactly what to expect
+    mock_shaping = {
+        "total_short_row_steps": 2,
+        "middle_stitch": 10,
+        "neck_half_width": 2,
+        "sts_per_step": 2
+    }
+    
+    carved_grid = apply_back_short_rows_to_grid(grid, mock_shaping)
+    
+    # THE TEST: The outer corners should now be 'dead' canvas space (-1)
+    assert carved_grid[0][0] == -1
+    assert carved_grid[0][-1] == -1
+    
+    # THE TEST: The active center neck stitches should remain untouched (0)
+    assert carved_grid[0][10] == 0

src/tests/test_example.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+Created on Wed May 20 15:14:10 2026
+
+@author: kasteivanauskaite
+"""
+from knitting_pattern.math_engine import (
+    calculate_stitches, 
+    calculate_rows, 
+    get_standard_body_measurements
+)
+
+# ==========================================
+# 1. GAUGE CALCULATOR TESTS
+# ==========================================
+def test_calculate_stitches():
+    # If a fabric is 10cm wide, and gauge is 20 sts per 10cm, we expect 20 stitches.
+    assert calculate_stitches(10.0, 20.0) == 20
+    
+    # If fabric is 15cm wide, and gauge is 22 sts per 10cm (2.2 sts/cm)
+    # 15 * 2.2 = 33 stitches
+    assert calculate_stitches(15.0, 22.0) == 33
+    
+    # Testing rounding: 10.5cm * 2.2 = 23.1. Should round up to 24.
+    assert calculate_stitches(10.5, 22.0) == 24
+
+def test_calculate_rows():
+    # 10cm length at 30 rows/10cm should equal 30 rows
+    assert calculate_rows(10.0, 30.0) == 30
+
+# ==========================================
+# 2. SIZING DATA TESTS
+# ==========================================
+def test_get_standard_body_measurements():
+    # Test that size Medium returns the correct dictionary
+    m_size = get_standard_body_measurements("M")
+    assert m_size["chest_circ_cm"] == 96.0
+    
+    # Test that lowercase inputs are handled properly
+    s_size = get_standard_body_measurements("s")
+    assert s_size["chest_circ_cm"] == 86.0
+    
+    # Test fallback: an invalid size should default to Medium (96.0)
+    invalid_size = get_standard_body_measurements("NONEXISTENT")
+    assert invalid_size["chest_circ_cm"] == 96.0