refactor tests

Author: bkamins

test/strings/basic.jl

@@ -619,19 +619,23 @@ end
                 end
             end
 
-            @test prevind(SubString(strs[i], 1, 4), 0) < 1
-            @test prevind(SubString(strs[i], 1, 4), 0, 1) < 1
-            @test prevind(SubString(strs[i], 1, 4), 1, 2) < 1
-            @test prevind(SubString(strs[i], 1, 4), 0, 2) < 1
-            @test prevind(SubString(strs[i], 7, 10), 1) < 1
-            @test prevind(SubString(strs[i], 7, 10), 1, 1) < 1
-            @test prevind(SubString(strs[i], 7, 10), 0) < 1
-            @test prevind(SubString(strs[i], 7, 10), 0, 1) < 1
-            @test prevind(SubString(strs[i], 7, 10), 1, 2) < 1
-            @test nextind(SubString(strs[i], 7, 10), 4) > endof(strs[i])
-            @test nextind(SubString(strs[i], 7, 10), 4, 1) > endof(strs[i])
-            @test nextind(SubString(strs[i], 7, 10), 9) > endof(strs[i])
-            @test nextind(SubString(strs[i], 7, 10), 9, 1) > endof(strs[i])
+            let ss = SubString(strs[i], 1, 4)
+                @test prevind(ss, 0) < 1
+                @test prevind(ss, 0, 1) < 1
+                @test prevind(ss, 1, 2) < 1
+                @test prevind(ss, 0, 2) < 1
+            end
+            let ss = SubString(strs[i], 7, 10)
+                @test prevind(ss, 1) < 1
+                @test prevind(ss, 1, 1) < 1
+                @test prevind(ss, 0) < 1
+                @test prevind(ss, 0, 1) < 1
+                @test prevind(ss, 1, 2) < 1
+                @test nextind(ss, 4) > endof(ss)
+                @test nextind(ss, 4, 1) > endof(ss)
+                @test nextind(ss, 9) > endof(ss)
+                @test nextind(ss, 9, 1) > endof(ss)
+            end
         end
 
         @test prevind(strs[1], -1) == -2