Test set for new pow() function
diff --git a/Lib/test/test_pow.py b/Lib/test/test_pow.py
new file mode 100644
index 0000000..03f7314
--- /dev/null
+++ b/Lib/test/test_pow.py
@@ -0,0 +1,92 @@
+import sys
+
+def powtest(type):
+ if (type!=float):
+ print " Testing 2-argument pow() function..."
+ for i in range(-1000, 1000):
+ if (pow(type(i),0)!=1):
+ raise ValueError, 'pow('+str(i)+',0) != 1'
+ if (pow(type(i),1)!=type(i)):
+ raise ValueError, 'pow('+str(i)+',1) != '+str(i)
+ if (pow(type(0),1)!=type(0)):
+ raise ValueError, 'pow(0,'+str(i)+') != 0'
+ if (pow(type(1),1)!=type(1)):
+ raise ValueError, 'pow(1,'+str(i)+') != 1'
+
+ for i in range(-100, 100):
+ if (pow(type(i),3)!=i*i*i):
+ raise ValueError, 'pow('+str(i)+',3) != '+str(i*i*i)
+
+ pow2=1
+ for i in range(0,31):
+ if (pow(2,i)!=pow2):
+ raise ValueError, 'pow(2,'+str(i)+') != '+str(pow2)
+ if (i!=30): pow2=pow2*2
+
+ print " Testing 3-argument pow() function..."
+ il, ih = -20, 20
+ jl, jh = -5, 5
+ kl, kh = -10, 10
+ if (type==float):
+ il=1
+ elif (type==int):
+ jl=0
+ elif (type==long):
+ jl,jh = 0, 15
+ for i in range(il, ih+1):
+ for j in range(jl,jh+1):
+ for k in range(kl, kh+1):
+ if (k!=0):
+ if (pow(type(i),j,k)!=pow(type(i),j)% type(k) ):
+ raise ValueError, "pow(" +str(i)+ "," +str(j)+ \
+ "," +str(k)+ ") != pow(" +str(i)+ "," + \
+ str(j)+ ") % " +str(k)
+
+
+print 'Testing integer mode...'
+powtest(int)
+print 'Testing long integer mode...'
+powtest(long)
+print 'Testing floating point mode...'
+powtest(float)
+
+# Other tests-- not very systematic
+
+print 'The number in both columns should match.'
+print pow(3,3) % 8, pow(3,3,8)
+print pow(3,3) % -8, pow(3,3,-8)
+print pow(3,2) % -2, pow(3,2,-2)
+print pow(-3,3) % 8, pow(-3,3,8)
+print pow(-3,3) % -8, pow(-3,3,-8)
+print pow(5,2) % -8, pow(5,2,-8)
+print
+
+print pow(3L,3L) % 8, pow(3L,3L,8)
+print pow(3L,3L) % -8, pow(3L,3L,-8)
+print pow(3L,2) % -2, pow(3L,2,-2)
+print pow(-3L,3L) % 8, pow(-3L,3L,8)
+print pow(-3L,3L) % -8, pow(-3L,3L,-8)
+print pow(5L,2) % -8, pow(5L,2,-8)
+print
+
+print pow(3.0,3.0) % 8, pow(3.0,3.0,8)
+print pow(3.0,3.0) % -8, pow(3.0,3.0,-8)
+print pow(3.0,2) % -2, pow(3.0,2,-2)
+print pow(5.0,2) % -8, pow(5.0,2,-8)
+print
+
+for i in range(-10, 11):
+ for j in range(0, 6):
+ for k in range(-7, 11):
+ if (j>=0 and k!=0):
+ o=pow(i,j) % k
+ n=pow(i,j,k)
+ if (o!=n): print 'Integer mismatch:', i,j,k
+ if (j>=0 and k<>0):
+ o=pow(long(i),j) % k
+ n=pow(long(i),j,k)
+ if (o!=n): print 'Long mismatch:', i,j,k
+ if (i>=0 and k<>0):
+ o=pow(float(i),j) % k
+ n=pow(float(i),j,k)
+ if (o!=n): print 'Float mismatch:', i,j,k