def test_byLectureHours(self):
"""
Tests that each comparison (including default) returns correct results
"""
d = DescSearches()
self.assertTrue(len(d.byLectureHours(self.three_courses, 3.0)) == 2) # Default is "="
self.assertTrue(len(d.byLectureHours(self.three_courses, 3.5, "=")) == 1)
self.assertTrue(len(d.byLectureHours(self.three_courses, 3.6, "<")) == 3)
self.assertTrue(len(d.byLectureHours(self.three_courses, 3.0, "<=")) == 2)
self.assertTrue(len(d.byLectureHours(self.three_courses, 3.0, ">")) == 1)
self.assertTrue(len(d.byLectureHours(self.three_courses, 3.0, ">=")) == 3)
self.assertTrue(len(d.byLectureHours(self.three_courses, 3.5, ">=")) == 1)
self.assertTrue(len(d.byLectureHours(self.three_courses, 0.0, ">=")) == 3)
def test_byLectureHours_invalid(self):
"""
Tests that search throws exceptions for invalid input
"""
d = DescSearches()
with self.assertRaises(Exception):
d.byLectureHours(self.single_course, -1.0)
with self.assertRaises(Exception):
d.byLectureHours(self.single_course, 1)
with self.assertRaises(Exception):
d.byLectureHours(self.single_course, 2.0, "A")
def test_byLectureHours_none(self):
"""
Tests that each comparison (including default) returns no results for no matches
"""
d = DescSearches()
self.assertTrue(len(d.byLectureHours(self.three_courses, 16.0)) == 0) # Default is "="
self.assertTrue(len(d.byLectureHours(self.three_courses, 1.0, "=")) == 0)
self.assertTrue(len(d.byLectureHours(self.three_courses, 0.0, "<")) == 0)
self.assertTrue(len(d.byLectureHours(self.three_courses, 2.9, "<=")) == 0)
self.assertTrue(len(d.byLectureHours(self.three_courses, 0.0, "<=")) == 0)
self.assertTrue(len(d.byLectureHours(self.three_courses, 3.5, ">")) == 0)
self.assertTrue(len(d.byLectureHours(self.three_courses, 3.6, ">=")) == 0)