1 files changed, 9 insertions, 1 deletions
diff --git a/tests/StringTest.cpp b/tests/StringTest.cpp
index 06c18f6f53..f8c319e9be 100644
--- a/tests/StringTest.cpp
+++ b/tests/StringTest.cpp
@@ -192,7 +192,15 @@ DEF_TEST(String, reporter) {
     REPORTER_ASSERT(reporter, a.size() == 2000);
     for (size_t i = 0; i < a.size(); ++i) {
         if (a[i] != ' ') {
-            ERRORF(reporter, "SkStringPrintf fail: a[%d] = '%c'", i, a[i]);
+            ERRORF(reporter, "SkString::printf fail: a[%d] = '%c'", i, a[i]);
+            break;
+        }
+    }
+    a.appendf("%2000s", " ");
+    REPORTER_ASSERT(reporter, a.size() == 4000);
+    for (size_t i = 0; i < a.size(); ++i) {
+        if (a[i] != ' ') {
+            ERRORF(reporter, "SkString::appendf fail: a[%d] = '%c'", i, a[i]);
             break;
         }
     }