tests/float: Add tests for zero to a negative power.

tests/float/complex1.py

@@ -28,6 +28,7 @@ print(1j / 2)
 print((1j / 2j).real)
 print(1j / (1 + 2j))
 ans = 0j ** 0; print("%.5g %.5g" % (ans.real, ans.imag))
+ans = 0j ** 1; print("%.5g %.5g" % (ans.real, ans.imag))
 ans = 0j ** 0j; print("%.5g %.5g" % (ans.real, ans.imag))
 ans = 1j ** 2.5; print("%.5g %.5g" % (ans.real, ans.imag))
 ans = 1j ** 2.5j; print("%.5g %.5g" % (ans.real, ans.imag))
@@ -94,6 +95,10 @@ except ZeroDivisionError:
     print("ZeroDivisionError")
 
 # zero division via power
+try:
+    0j ** -1
+except ZeroDivisionError:
+    print("ZeroDivisionError")
 try:
     0j ** 1j
 except ZeroDivisionError:

tests/float/float1.py

@@ -75,6 +75,11 @@ try:
 except ZeroDivisionError:
     print("ZeroDivisionError")
 
+try:
+    0.0 ** -1
+except ZeroDivisionError:
+    print("ZeroDivisionError")
+
 # unsupported unary ops
 
 try:

tests/float/int_divzero.py

@@ -2,3 +2,8 @@ try:
     1 / 0
 except ZeroDivisionError:
     print("ZeroDivisionError")
+
+try:
+    0 ** -1
+except ZeroDivisionError:
+    print("ZeroDivisionError")