SkStringPrintf and SkString::printf now are no longer limted by a static buffer

tests/StringTest.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include <stdarg.h>
 #include <stdio.h>
 #include "SkString.h"
@@ skipping 130 matching lines @@
     a.set("");
     a.appendU64(0x8000000000000001ULL, 0);
     REPORTER_ASSERT(reporter, a.equals("9223372036854775809"));
     a.set("");
     a.appendU64(0xFFFFFFFFFFFFFFFFULL, 0);
     REPORTER_ASSERT(reporter, a.equals("18446744073709551615"));
     a.set("");
     a.appendU64(0x0000000001000000ULL, 15);
     REPORTER_ASSERT(reporter, a.equals("000000016777216"));
 
+    a.printf("%i", 0);
+    REPORTER_ASSERT(reporter, a.equals("0"));
+    a.printf("%g", 3.14);
+    REPORTER_ASSERT(reporter, a.equals("3.14"));
+    a.printf("hello %s", "skia");
+    REPORTER_ASSERT(reporter, a.equals("hello skia"));
+
     static const struct {
         SkScalar    fValue;
         const char* fString;
     } gRec[] = {
         { 0,            "0" },
         { SK_Scalar1,   "1" },
         { -SK_Scalar1,  "-1" },
         { SK_Scalar1/2, "0.5" },
   #if defined(SK_BUILD_FOR_WIN) && (_MSC_VER < 1900)
         { 3.4028234e38f,   "3.4028235e+038" },
@@ skipping 17 matching lines @@
     char buffer [40];
     memset(buffer, 'a', 40);
     REPORTER_ASSERT(reporter, buffer[18] == 'a');
     REPORTER_ASSERT(reporter, buffer[19] == 'a');
     REPORTER_ASSERT(reporter, buffer[20] == 'a');
     printfAnalog(buffer, 20, "%30d", 0);
     REPORTER_ASSERT(reporter, buffer[18] == ' ');
     REPORTER_ASSERT(reporter, buffer[19] == 0);
     REPORTER_ASSERT(reporter, buffer[20] == 'a');
 
+    REPORTER_ASSERT(reporter, SkStringPrintf("%i", 0).equals("0"));
+
+    // 2000 is larger than the static buffer size inside SkString.cpp
+    a = SkStringPrintf("%2000s", " ");
+    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]);
+            break;
+        }
+    }
+    a.reset();
+    a.printf("%2000s", " ");
+    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]);
+            break;
+        }
+    }
 }
 
 DEF_TEST(String_SkStrSplit, r) {
     SkTArray<SkString> results;
 
     SkStrSplit("a-_b_c-dee--f-_-_-g-", "-_", &results);
     REPORTER_ASSERT(r, results.count() == 6);
     REPORTER_ASSERT(r, results[0].equals("a"));
     REPORTER_ASSERT(r, results[1].equals("b"));
     REPORTER_ASSERT(r, results[2].equals("c"));
@@ skipping 55 matching lines @@
     REPORTER_ASSERT(r, results[2].equals(""));
 
     results.reset();
     SkStrSplit(",a,b,", ",", kStrict_SkStrSplitMode, &results);
     REPORTER_ASSERT(r, results.count() == 4);
     REPORTER_ASSERT(r, results[0].equals(""));
     REPORTER_ASSERT(r, results[1].equals("a"));
     REPORTER_ASSERT(r, results[2].equals("b"));
     REPORTER_ASSERT(r, results[3].equals(""));
 }