def testMultipleValues(self):
"""If the minimum or maximum value appears more than once in the list, return the first one"""
value, index = MinMax()([5, 1, 8, 4, 1, 9, 1])
self.assertEqual(value, 1.0)
self.assertEqual(index, 1)
value, index = MinMax(type="max")([9, 6, 5, 9, 8, 4, 9])
self.assertEqual(value, 9.0)
self.assertEqual(index, 0)
def testMax(self):
value, index = MinMax(type="max")([3, 7, -45, 2, -1, 0])
self.assertEqual(value, 7)
self.assertEqual(index, 1)
def testMixedTypes(self):
value, index = MinMax()([4, 5, 3.3])
self.assertAlmostEqual(value, 3.3)
self.assertEqual(index, 2)
def testNegatives(self):
value, index = MinMax()([3, 7, -45, 2, -1, 0])
self.assertEqual(value, -45.0)
self.assertEqual(index, 2)
def testMin(self):
"""An array of normal numbers, finding minimum"""
value, index = MinMax()([5, 8, 4, 9, 1])
self.assertEqual(value, 1.0)
self.assertEqual(index, 4)
def testOne(self):
"""An array of a single value"""
value, index = MinMax()([100])
self.assertEqual(value, 100.0)
self.assertEqual(index, 0)
def testAllSame(self):
value, index = MinMax()([0]*10)
self.assertEqual(value, 0.0)
self.assertEqual(index, 0)
def testEmpty(self):
"""An empty input causes an exception"""
self.assertComputeFails(MinMax(), [])
self.assertComputeFails(MinMax(type="max"), [])
def testDefaultIsMin(self):
"""Making the Algorithm with no type defaults to min"""
value, index = MinMax()([3,1,2])
self.assertEqual(value, 1.0)
self.assertEqual(index, 1)
def testNonArray(self):
self.assertComputeFails(MinMax()('Not an array'))
def testNonNumeric(self):
self.assertComputeFails(MinMax()(['a', 1]))