Verify all parsed test font files start with cap.

tests/FontConfigParser.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "Resources.h"
 #include "SkCommandLineFlags.h"
 #include "SkFontConfigParser_android.h"
@@ skipping 30 matching lines @@
     REPORTER_ASSERT(reporter, !fontFamilies[0]->fIsFallbackFont);
 
     // Check that the languages are all sane.
     for (int i = 0; i < fontFamilies.count(); ++i) {
         const SkString& lang = fontFamilies[i]->fLanguage.getTag();
         for (size_t j = 0; j < lang.size(); ++j) {
             int c = lang[j];
             REPORTER_ASSERT(reporter, isALPHA(c) || isDIGIT(c) || '-' == c);
         }
     }
+
+    // All file names in the test configuration files start with a capital letter.
+    // This is not a general requirement, but it is true of all the test configuration data.
+    // Verifying ensures the filenames have been read sanely and have not been 'sliced'.
+    for (int i = 0; i < fontFamilies.count(); ++i) {
+        FontFamily& family = *fontFamilies[i];
+        for (int j = 0; j < family.fFonts.count(); ++j) {
+            FontFileInfo& file = family.fFonts[j];
+            REPORTER_ASSERT(reporter, !file.fFileName.isEmpty() &&
+                                      file.fFileName[0] >= 'A' &&
+                                      file.fFileName[0] <= 'Z');
+        }
+    }
 }
 
 void DumpLoadedFonts(SkTDArray<FontFamily*> fontFamilies) {
     if (!FLAGS_verboseFontMgr) {
         return;
     }
 
     for (int i = 0; i < fontFamilies.count(); ++i) {
         SkDebugf("Family %d:\n", i);
         switch(fontFamilies[i]->fVariant) {
@@ skipping 69 matching lines @@
         ValidateLoadedFonts(v22FontFamilies, "Roboto-Thin.ttf", reporter);
     } else {
         resourcesMissing = true;
     }
 
     if (resourcesMissing) {
         SkDebugf("---- Resource files missing for FontConfigParser test\n");
     }
 }