1 files changed, 82 insertions, 0 deletions
diff --git a/chromium/components/url_pattern_index/string_splitter_unittest.cc b/chromium/components/url_pattern_index/string_splitter_unittest.cc
new file mode 100644
index 00000000000..d2d2938c882
--- /dev/null
+++ b/chromium/components/url_pattern_index/string_splitter_unittest.cc
@@ -0,0 +1,82 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "components/url_pattern_index/string_splitter.h"
+
+#include <string>
+#include <vector>
+
+#include "base/strings/string_piece.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace url_pattern_index {
+
+namespace {
+bool IsTestSeparator(char c) {
+  return c == ' ' || c == '\t' || c == ',';
+}
+}
+
+TEST(StringSplitterTest, SplitWithEmptyResult) {
+  const char* const kStrings[] = {
+      "", " ", "\t", ",", " \t ", ",,,,", "\t\t\t",
+  };
+
+  for (const char* string : kStrings) {
+    auto splitter = CreateStringSplitter(string, IsTestSeparator);
+    // Explicitly verify both operator== and operator!=.
+    EXPECT_TRUE(splitter.begin() == splitter.end());
+    EXPECT_FALSE(splitter.begin() != splitter.end());
+  }
+}
+
+TEST(StringSplitterTest, SplitOneWord) {
+  const char* const kLongStrings[] = {
+      "word",     " word ",   " word",   "word ",   ",word,",
+      "\tword\t", "  word  ", "word   ", "   word", ", word, \t",
+  };
+  const char* const kShortStrings[] = {
+      "w", " w ", " w", "w ", "  w  ", "  w", "w  ", ", w, ", "w, \t",
+  };
+
+  const char kLongWord[] = "word";
+  const char kShortWord[] = "w";
+
+  auto expect_word = [](const char* text, const char* word) {
+    auto splitter = CreateStringSplitter(text, IsTestSeparator);
+    // Explicitly verify both operator== and operator!=.
+    EXPECT_TRUE(splitter.begin() != splitter.end());
+    EXPECT_FALSE(splitter.begin() == splitter.end());
+
+    EXPECT_EQ(splitter.end(), ++splitter.begin());
+    EXPECT_EQ(word, *splitter.begin());
+
+    auto iterator = splitter.begin();
+    EXPECT_EQ(splitter.begin(), iterator++);
+    EXPECT_EQ(splitter.end(), iterator);
+  };
+
+  for (const char* string : kLongStrings)
+    expect_word(string, kLongWord);
+  for (const char* string : kShortStrings)
+    expect_word(string, kShortWord);
+}
+
+TEST(StringSplitterTest, SplitThreeWords) {
+  const char* const kStrings[] = {
+      "one two three",     " one two three ",   "   one  two, three",
+      "one,two\t\t three", "one, two, three, ",
+  };
+  const std::vector<base::StringPiece> kResults = {
+      "one", "two", "three",
+  };
+
+  for (const char* string : kStrings) {
+    auto splitter = CreateStringSplitter(string, IsTestSeparator);
+    std::vector<base::StringPiece> tokens(splitter.begin(), splitter.end());
+    EXPECT_EQ(kResults, tokens);
+  }
+}
+
+}  // namespace url_pattern_index