Move string tokenizer to base/strings.

BUG=

Review URL: https://codereview.chromium.org/12087091

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@180211 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 234 insertions, 0 deletions

diff --git a/base/strings/string_tokenizer_unittest.cc b/base/strings/string_tokenizer_unittest.cc
new file mode 100644
index 0000000..d391845
--- /dev/null
+++ b/base/strings/string_tokenizer_unittest.cc
@@ -0,0 +1,234 @@
+// Copyright (c) 2006-2008 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 "base/strings/string_tokenizer.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+using std::string;
+
+namespace base {
+
+namespace {
+
+TEST(StringTokenizerTest, Simple) {
+  string input = "this is a test";
+  StringTokenizer t(input, " ");
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("this"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("is"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("a"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("test"), t.token());
+
+  EXPECT_FALSE(t.GetNext());
+}
+
+TEST(StringTokenizerTest, Reset) {
+  string input = "this is a test";
+  StringTokenizer t(input, " ");
+
+  for (int i = 0; i < 2; ++i) {
+    EXPECT_TRUE(t.GetNext());
+    EXPECT_EQ(string("this"), t.token());
+
+    EXPECT_TRUE(t.GetNext());
+    EXPECT_EQ(string("is"), t.token());
+
+    EXPECT_TRUE(t.GetNext());
+    EXPECT_EQ(string("a"), t.token());
+
+    EXPECT_TRUE(t.GetNext());
+    EXPECT_EQ(string("test"), t.token());
+
+    EXPECT_FALSE(t.GetNext());
+    t.Reset();
+  }
+}
+
+TEST(StringTokenizerTest, RetDelims) {
+  string input = "this is a test";
+  StringTokenizer t(input, " ");
+  t.set_options(StringTokenizer::RETURN_DELIMS);
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("this"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string(" "), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("is"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string(" "), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("a"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string(" "), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("test"), t.token());
+
+  EXPECT_FALSE(t.GetNext());
+}
+
+TEST(StringTokenizerTest, ManyDelims) {
+  string input = "this: is, a-test";
+  StringTokenizer t(input, ": ,-");
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("this"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("is"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("a"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("test"), t.token());
+
+  EXPECT_FALSE(t.GetNext());
+}
+
+TEST(StringTokenizerTest, ParseHeader) {
+  string input = "Content-Type: text/html ; charset=UTF-8";
+  StringTokenizer t(input, ": ;=");
+  t.set_options(StringTokenizer::RETURN_DELIMS);
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_FALSE(t.token_is_delim());
+  EXPECT_EQ(string("Content-Type"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_TRUE(t.token_is_delim());
+  EXPECT_EQ(string(":"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_TRUE(t.token_is_delim());
+  EXPECT_EQ(string(" "), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_FALSE(t.token_is_delim());
+  EXPECT_EQ(string("text/html"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_TRUE(t.token_is_delim());
+  EXPECT_EQ(string(" "), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_TRUE(t.token_is_delim());
+  EXPECT_EQ(string(";"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_TRUE(t.token_is_delim());
+  EXPECT_EQ(string(" "), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_FALSE(t.token_is_delim());
+  EXPECT_EQ(string("charset"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_TRUE(t.token_is_delim());
+  EXPECT_EQ(string("="), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_FALSE(t.token_is_delim());
+  EXPECT_EQ(string("UTF-8"), t.token());
+
+  EXPECT_FALSE(t.GetNext());
+  EXPECT_FALSE(t.token_is_delim());
+}
+
+TEST(StringTokenizerTest, ParseQuotedString) {
+  string input = "foo bar 'hello world' baz";
+  StringTokenizer t(input, " ");
+  t.set_quote_chars("'");
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("foo"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("bar"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("'hello world'"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("baz"), t.token());
+
+  EXPECT_FALSE(t.GetNext());
+}
+
+TEST(StringTokenizerTest, ParseQuotedString_Malformed) {
+  string input = "bar 'hello wo";
+  StringTokenizer t(input, " ");
+  t.set_quote_chars("'");
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("bar"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("'hello wo"), t.token());
+
+  EXPECT_FALSE(t.GetNext());
+}
+
+TEST(StringTokenizerTest, ParseQuotedString_Multiple) {
+  string input = "bar 'hel\"lo\" wo' baz\"";
+  StringTokenizer t(input, " ");
+  t.set_quote_chars("'\"");
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("bar"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("'hel\"lo\" wo'"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("baz\""), t.token());
+
+  EXPECT_FALSE(t.GetNext());
+}
+
+TEST(StringTokenizerTest, ParseQuotedString_EscapedQuotes) {
+  string input = "foo 'don\\'t do that'";
+  StringTokenizer t(input, " ");
+  t.set_quote_chars("'");
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("foo"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("'don\\'t do that'"), t.token());
+
+  EXPECT_FALSE(t.GetNext());
+}
+
+TEST(StringTokenizerTest, ParseQuotedString_EscapedQuotes2) {
+  string input = "foo='a, b', bar";
+  StringTokenizer t(input, ", ");
+  t.set_quote_chars("'");
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("foo='a, b'"), t.token());
+
+  EXPECT_TRUE(t.GetNext());
+  EXPECT_EQ(string("bar"), t.token());
+
+  EXPECT_FALSE(t.GetNext());
+}
+
+}  // namespace
+
+}  // namespace base