split math_basics.py to proper files

Author: youknowone

extra_tests/snippets/builtin_pow.py

@@ -6,6 +6,22 @@
 assert pow(41, 7, 2) == 1
 assert pow(7, 2, 49) == 0
 
+assert pow(0, 0) == 1
+assert pow(2, 2) == 4
+assert pow(1, 2.0) == 1.0
+assert pow(2.0, 1) == 2.0
+assert pow(0, 10**1000) == 0
+assert pow(1, 10**1000) == 1
+assert pow(-1, 10**1000+1) == -1
+assert pow(-1, 10**1000) == 1
+
+assert pow(2, 4, 5) == 1
+assert_raises(TypeError, pow, 2, 4, 5.0)
+assert_raises(TypeError, pow, 2, 4.0, 5)
+assert_raises(TypeError, pow, 2.0, 4, 5)
+assert pow(2, -1, 5) == 3
+assert_raises(ValueError, pow, 2, 2, 0)
+
 
 assert_almost_equal = assert_equal
 

extra_tests/snippets/builtin_round.py

@@ -1,5 +1,19 @@
 from testutils import assert_raises
 
+assert round(1.2) == 1
+assert round(1.8) == 2
+assert round(0.5) == 0
+assert round(1.5) == 2
+assert round(-0.5) == 0
+assert round(-1.5) == -2
+
+# ValueError: cannot convert float NaN to integer
+assert_raises(ValueError, round, float('nan'))
+# OverflowError: cannot convert float infinity to integer
+assert_raises(OverflowError, round, float('inf'))
+# OverflowError: cannot convert float infinity to integer
+assert_raises(OverflowError, round, -float('inf'))
+
 assert round(0) == 0
 assert isinstance(round(0), int)
 assert round(0.0) == 0

extra_tests/snippets/math_basics.py

@@ -0,0 +1,34 @@
+from testutils import assert_raises
+
+assert -3 // 2 == -2
+assert -3 % 2 == 1
+
+a = 4
+
+assert a ** 3 == 64
+assert a * 3 == 12
+assert a / 2 == 2
+assert 2 == a / 2
+assert a % 3 == 1
+assert a - 3 == 1
+assert -a == -4
+assert +a == 4
+
+# bitwise
+
+assert 8 >> 3 == 1
+assert 8 << 3 == 64
+
+# Left shift raises type error
+assert_raises(TypeError, lambda: 1 << 0.1)
+assert_raises(TypeError, lambda: 1 << "abc")
+
+# Right shift raises type error
+assert_raises(TypeError, lambda: 1 >> 0.1)
+assert_raises(TypeError, lambda: 1 >> "abc")
+
+# Left shift raises value error on negative
+assert_raises(ValueError, lambda: 1 << -1)
+
+# Right shift raises value error on negative
+assert_raises(ValueError, lambda: 1 >> -1)