first commit

test/calculators/wind_pressure_calculator_test.py

@@ -0,0 +1,63 @@
+import unittest
+from unittest.mock import MagicMock
+
+from nose.tools import assert_almost_equal
+
+from helix.calculators.wind_pressure_calculator import WindPressureCalculator
+from helix.constants.exposure_category import ExposureCategory
+
+
+class WindPressureCalculatorTest(unittest.TestCase):
+    def setUp(self):
+        self.values = MagicMock()
+        self.values.wind_speed.return_value = 110
+        self.values.exposure_category_transition_distance.return_value = 1000
+        self.subject = WindPressureCalculator(self.values)
+
+    def test_kz_with_exposure_BC_and_roof_height_less_than_15_feet(self):
+        assert_almost_equal(self.subject.calculate_k_z(12, ExposureCategory.B_C, 1000), 0.686, 3)
+
+    def test_kz_with_exposure_BC_and_roof_height_greater_than_15_feet(self):
+        assert_almost_equal(self.subject.calculate_k_z(100, ExposureCategory.B_C, 1000), 1.023, 3)
+
+    def test_kz_with_exposure_CB_and_roof_height_less_than_30_feet(self):
+        assert_almost_equal(self.subject.calculate_k_z(25, ExposureCategory.C_B, 1000), 0.856, 3)
+
+    def test_kz_with_exposure_CB_and_roof_height_greater_than_30_feet(self):
+        assert_almost_equal(self.subject.calculate_k_z(100, ExposureCategory.C_B, 1000), 1.139, 3)
+
+    def test_qz_with_exposure_B_and_roof_height_greater_than_30_feet(self):
+        self.values.building_height.return_value = 35
+        self.values.exposure_category.return_value = ExposureCategory.B
+
+        assert_almost_equal(self.subject.q_z(self.subject.K_z()), 19.276, 2)
+
+    def test_qz_with_exposure_B_and_roof_height_less_than_30_feet(self):
+        self.values.building_height.return_value = 12
+        self.values.exposure_category.return_value = ExposureCategory.B
+
+        assert_almost_equal(self.subject.q_z(self.subject.K_z()), 18.430, 2)
+
+    def test_qz_with_exposure_C_and_roof_height_greater_than_15_feet(self):
+        self.values.building_height.return_value = 35
+        self.values.exposure_category.return_value = ExposureCategory.C
+
+        assert_almost_equal(self.subject.q_z(self.subject.K_z()), 26.715, 2)
+
+    def test_qz_with_exposure_C_and_roof_height_less_than_15_feet(self):
+        self.values.building_height.return_value = 12
+        self.values.exposure_category.return_value = ExposureCategory.C
+
+        assert_almost_equal(self.subject.q_z(self.subject.K_z()), 22.35078017, 2)
+
+    def test_qz_with_exposure_D_and_roof_height_greater_than_15_feet(self):
+        self.values.building_height.return_value = 35
+        self.values.exposure_category.return_value = ExposureCategory.D
+
+        assert_almost_equal(self.subject.q_z(self.subject.K_z()), 31.432, 2)
+
+    def test_qz_with_exposure_D_and_roof_height_less_than_15_feet(self):
+        self.values.building_height.return_value = 12
+        self.values.exposure_category.return_value = ExposureCategory.D
+
+        assert_almost_equal(self.subject.q_z(self.subject.K_z()), 27.126, 2)