I fix order of actual and expect test value in gc.rb.

test/t/gc.rb

 # Not ISO specified
 
 assert('GC.enable') do
-  assert_equal GC.disable, false
-  assert_equal GC.enable, true
-  assert_equal GC.enable, false
+  assert_false GC.disable
+  assert_true GC.enable
+  assert_false GC.enable
 end
 
 assert('GC.disable') do
   begin
-    assert_equal GC.disable, false
-    assert_equal GC.disable, true
+    assert_false GC.disable
+    assert_true GC.disable
   ensure
     GC.enable
   end
@@ -18,7 +18,7 @@ end
 assert('GC.interval_ratio=') do
   origin = GC.interval_ratio
   begin
-    assert_equal (GC.interval_ratio = 150), 150
+    assert_equal 150, (GC.interval_ratio = 150)
   ensure
     GC.interval_ratio = origin
   end
@@ -27,7 +27,7 @@ end
 assert('GC.step_ratio=') do
   origin = GC.step_ratio
   begin
-    assert_equal (GC.step_ratio = 150), 150
+    assert_equal 150, (GC.step_ratio = 150)
   ensure
     GC.step_ratio = origin
   end
@@ -36,9 +36,9 @@ end
 assert('GC.generational_mode=') do
   origin = GC.generational_mode
   begin
-    assert_equal (GC.generational_mode = false), false
-    assert_equal (GC.generational_mode = true), true
-    assert_equal (GC.generational_mode = true), true
+    assert_false (GC.generational_mode = false)
+    assert_true (GC.generational_mode = true)
+    assert_true (GC.generational_mode = true)
   ensure
     GC.generational_mode = origin
   end