restructured some test files

t_common_test.go

@@ -23,11 +23,17 @@ func runCtxTestSuiteSpec(t *testing.T, ctx kern.ExprContext, section string, inp
 	succeeded := 0
 	failed := 0
 	for _, count := range spec {
-		good := doTest(t, ctx, section, &inputs[count-1], count)
+		index := count - 1
+		if index >= 0 && index < len(inputs) {
+			good := doTest(t, ctx, section, &inputs[index], count)
 
-		if good {
-			succeeded++
+			if good {
+				succeeded++
+			} else {
+				failed++
+			}
 		} else {
+			t.Errorf("%s -- test count: %d, invalid index", section, count)
 			failed++
 		}
 	}