Improve Numeric Tests

test/t/numeric.rb

@@ -2,27 +2,28 @@
 # Numeric ISO Test
 
 assert('Numeric', '15.2.7') do
-  Numeric.class == Class
+  assert_equal Numeric.class, Class
 end
 
 assert('Numeric superclass', '15.2.7.2') do
-  Numeric.superclass == Object
+  assert_equal Numeric.superclass, Object
 end
 
 assert('Numeric#+@', '15.2.7.4.1') do
-  +1 == +1
+  assert_equal(+1, +1)
 end
 
 assert('Numeric#-@', '15.2.7.4.2') do
-  -1 == -1
+  assert_equal(-1, -1)
 end
 
 assert('Numeric#abs', '15.2.7.4.3') do
-  1.abs == 1 and -1.abs == 1.0
+  assert_equal(1.abs, 1)
+  assert_equal(-1.abs, 1.0)
 end
 
 # Not ISO specified
 
 assert('Numeric#**') do
-  2.0**3 == 8.0
+  assert_equal 2.0**3, 8.0
 end