add SkString::append(const char c)

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 "Test.h"
 #include "SkString.h"
 #include <stdarg.h>
@@ skipping 75 matching lines @@
     REPORTER_ASSERT(reporter, a != b && a != c && b == c);
 
     a.append(" world");
     e.append("worldz", 5);
     e.insert(5, " ");
     f.set("world");
     f.prepend("hello ");
     REPORTER_ASSERT(reporter, a.equals("hello world") && a == e && a == f);
 
     a.reset();
+    a.append(SkString("string"));
+    a.append("text");
+    a.append('c');
+    REPORTER_ASSERT(reporter, a.equals("stringtextc"));
+
+    a.reset();
+    a += 'c';
+    a += "text";
+    a += SkString("string");
+    REPORTER_ASSERT(reporter, a.equals("ctextstring"));
+
+    a.reset();
     b.resize(0);
     REPORTER_ASSERT(reporter, a.isEmpty() && b.isEmpty() && a == b);
 
     a.set("a");
     a.set("ab");
     a.set("abc");
     a.set("abcd");
 
     a.set("");
     a.appendS64(72036854775808LL, 0);
@@ skipping 46 matching lines @@
     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');
 
 }
 
 #include "TestClassDef.h"
 DEFINE_TESTCLASS("String", StringTestClass, TestString)