1 files changed, 165 insertions, 0 deletions
diff --git a/gfx/tests/gtest/TestSkipChars.cpp b/gfx/tests/gtest/TestSkipChars.cpp
new file mode 100644
index 000000000..65c96f417
--- /dev/null
+++ b/gfx/tests/gtest/TestSkipChars.cpp
@@ -0,0 +1,165 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "gtest/gtest.h"
+
+#include "gfxSkipChars.h"
+#include "mozilla/ArrayUtils.h"
+
+static bool
+TestConstructor()
+{
+  gfxSkipChars skipChars;
+
+  EXPECT_TRUE(skipChars.GetOriginalCharCount() == 0) <<
+    "[1] Make sure the gfxSkipChars was properly initialized with constructor";
+
+  return true;
+}
+
+static bool
+TestLength()
+{
+  gfxSkipChars skipChars;
+
+  skipChars.KeepChars(100);
+
+  EXPECT_TRUE(skipChars.GetOriginalCharCount() == 100) <<
+    "[1] Check length after keeping chars";
+
+  skipChars.SkipChars(50);
+
+  EXPECT_TRUE(skipChars.GetOriginalCharCount() == 150) <<
+    "[2] Check length after skipping chars";
+
+  skipChars.SkipChars(50);
+
+  EXPECT_TRUE(skipChars.GetOriginalCharCount() == 200) <<
+    "[3] Check length after skipping more chars";
+
+  skipChars.KeepChar();
+
+  EXPECT_TRUE(skipChars.GetOriginalCharCount() == 201) <<
+    "[4] Check length after keeping a final char";
+
+  return true;
+}
+
+static bool
+TestIterator()
+{
+  // Test a gfxSkipChars that starts with kept chars
+  gfxSkipChars skipChars1;
+
+  skipChars1.KeepChars(9);
+  skipChars1.SkipChar();
+  skipChars1.KeepChars(9);
+  skipChars1.SkipChar();
+  skipChars1.KeepChars(9);
+
+  EXPECT_TRUE(skipChars1.GetOriginalCharCount() == 29) <<
+    "[1] Check length";
+
+  gfxSkipCharsIterator iter1(skipChars1);
+
+  EXPECT_TRUE(iter1.GetOriginalOffset() == 0) <<
+    "[2] Check initial original offset";
+  EXPECT_TRUE(iter1.GetSkippedOffset() == 0) <<
+    "[3] Check initial skipped offset";
+
+  EXPECT_TRUE(iter1.IsOriginalCharSkipped() == false) <<
+    "[3a] Check IsOriginalCharSkipped for initial position";
+
+  uint32_t expectSkipped1[] =
+  {  0,  1,  2,  3,  4,  5,  6,  7,  8,  9,
+     9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
+    18, 19, 20, 21, 22, 23, 24, 25, 26, 27 };
+
+  for (uint32_t i = 0; i < mozilla::ArrayLength(expectSkipped1); i++) {
+    EXPECT_TRUE(iter1.ConvertOriginalToSkipped(i) == expectSkipped1[i]) <<
+      "[4] Check mapping of original to skipped for " << i;
+  }
+
+  int32_t expectOriginal1[] =
+  {  0,  1,  2,  3,  4,  5,  6,  7,  8,
+    10, 11, 12, 13, 14, 15, 16, 17, 18,
+    20, 21, 22, 23, 24, 25, 26, 27, 28 };
+
+  for (uint32_t i = 0; i < mozilla::ArrayLength(expectOriginal1); i++) {
+    EXPECT_TRUE(iter1.ConvertSkippedToOriginal(i) == expectOriginal1[i]) <<
+      "[5] Check mapping of skipped to original for " << i;
+  }
+
+  bool expectIsOriginalSkipped1[] =
+  {  false, false, false, false, false, false, false, false, false, true,
+     false, false, false, false, false, false, false, false, false, true,
+     false, false, false, false, false, false, false, false, false
+  };
+
+  for (uint32_t i = 0; i < mozilla::ArrayLength(expectIsOriginalSkipped1); i++) {
+    iter1.SetOriginalOffset(i);
+    EXPECT_TRUE(iter1.IsOriginalCharSkipped() == expectIsOriginalSkipped1[i]) <<
+      "[5.a] Check IsOriginalCharSkipped for " << i;
+  }
+
+  // Test a gfxSkipChars that starts with skipped chars
+  gfxSkipChars skipChars2;
+
+  skipChars2.SkipChars(9);
+  skipChars2.KeepChar();
+  skipChars2.SkipChars(9);
+  skipChars2.KeepChar();
+  skipChars2.SkipChars(9);
+
+  EXPECT_TRUE(skipChars2.GetOriginalCharCount() == 29) <<
+    "[6] Check length";
+
+  gfxSkipCharsIterator iter2(skipChars2);
+
+  EXPECT_TRUE(iter2.GetOriginalOffset() == 0) <<
+    "[7] Check initial original offset";
+  EXPECT_TRUE(iter2.GetSkippedOffset() == 0) <<
+    "[8] Check initial skipped offset";
+
+  EXPECT_TRUE(iter2.IsOriginalCharSkipped() == true) <<
+    "[8a] Check IsOriginalCharSkipped for initial position";
+
+  uint32_t expectSkipped2[] =
+  {  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+     2,  2,  2,  2,  2,  2,  2,  2,  2,  2 };
+
+  for (uint32_t i = 0; i < mozilla::ArrayLength(expectSkipped2); i++) {
+    EXPECT_TRUE(iter2.ConvertOriginalToSkipped(i) == expectSkipped2[i]) <<
+      "[9] Check mapping of original to skipped for " << i;
+  }
+
+  int32_t expectOriginal2[] = { 9, 19, 29 };
+
+  for (uint32_t i = 0; i < mozilla::ArrayLength(expectOriginal2); i++) {
+    EXPECT_TRUE(iter2.ConvertSkippedToOriginal(i) == expectOriginal2[i]) <<
+      "[10] Check mapping of skipped to original for " << i;
+  }
+
+  bool expectIsOriginalSkipped2[] =
+  {  true, true, true, true, true, true, true, true, true, false,
+     true, true, true, true, true, true, true, true, true, false,
+     true, true, true, true, true, true, true, true, true
+  };
+
+  for (uint32_t i = 0; i < mozilla::ArrayLength(expectIsOriginalSkipped2); i++) {
+    iter2.SetOriginalOffset(i);
+    EXPECT_TRUE(iter2.IsOriginalCharSkipped() == expectIsOriginalSkipped2[i]) <<
+      "[10.a] Check IsOriginalCharSkipped for " << i;
+  }
+
+  return true;
+}
+
+TEST(Gfx, gfxSkipChars) {
+  TestConstructor();
+  TestLength();
+  TestIterator();
+}