Issue 1115 - Some yahoo page not correctly shown on IE8 when ABP enabled

test/UtilForEachQueryStringParameterTest.cpp

+/*
+ * This file is part of Adblock Plus <https://adblockplus.org/>,
+ * Copyright (C) 2006-2015 Eyeo GmbH
+ *
+ * Adblock Plus is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * Adblock Plus is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <cstdint>
+#include <gtest/gtest.h>
+#include "../src/shared/Utils.h"
+
+namespace
+{
+  struct ParameterHandler
+  {
+    bool operator()(const std::wstring& parameter, const std::wstring& value)
+    {
+      parameters.emplace_back(parameter, value);
+      return true;
+    }
+    struct Parameter
+    {
+      Parameter(const std::wstring& name, const std::wstring& value)
+        : name(name), value(value)
+      {
+      }
+      std::wstring name;
+      std::wstring value;
+    };
+    std::vector<Parameter> parameters;
+  };
+}
+
+TEST(ForEachQueryStringParameterTest, EmptyParameterHandler)
+{
+  ASSERT_THROW(ForEachQueryStringParameter(L"some=query&string",
+    std::function<bool(const std::wstring&, const std::wstring&)>()), std::bad_function_call);
+}
+
+TEST(ForEachQueryStringParameterTest, EmptyQueryString)
+{
+  ParameterHandler parameterHandler;
+  ForEachQueryStringParameter(L"", std::ref(parameterHandler));
+  EXPECT_EQ(0, parameterHandler.parameters.size());
+}
+
+TEST(ForEachQueryStringParameterTest, QueryStringWithOneNormalParameter)
+{
+  ParameterHandler parameterHandler;
+  ForEachQueryStringParameter(L"param=value", std::ref(parameterHandler));
+  ASSERT_EQ(1, parameterHandler.parameters.size());
+  EXPECT_EQ(L"param", parameterHandler.parameters[0].name);
+  EXPECT_EQ(L"value", parameterHandler.parameters[0].value);
+}
+
+TEST(ForEachQueryStringParameterTest, QueryStringWithSeveralNormalParameters)
+{
+  ParameterHandler parameterHandler;
+  ForEachQueryStringParameter(L"param1=value1&param2=value2&param3=value3", std::ref(parameterHandler));
+  ASSERT_EQ(3, parameterHandler.parameters.size());
+  EXPECT_EQ(L"param1", parameterHandler.parameters[0].name);
+  EXPECT_EQ(L"value1", parameterHandler.parameters[0].value);
+  EXPECT_EQ(L"param2", parameterHandler.parameters[1].name);
+  EXPECT_EQ(L"value2", parameterHandler.parameters[1].value);
+  EXPECT_EQ(L"param3", parameterHandler.parameters[2].name);
+  EXPECT_EQ(L"value3", parameterHandler.parameters[2].value);
+}
+
+TEST(ForEachQueryStringParameterTest, QueryStringWithEmptyParameterAtTheEnd)
+{
+  ParameterHandler parameterHandler;
+  ForEachQueryStringParameter(L"param=value&", std::ref(parameterHandler));
+  ASSERT_EQ(2, parameterHandler.parameters.size());
+  EXPECT_EQ(L"param", parameterHandler.parameters[0].name);
+  EXPECT_EQ(L"value", parameterHandler.parameters[0].value);
+  EXPECT_EQ(L"", parameterHandler.parameters[1].name);
+  EXPECT_EQ(L"", parameterHandler.parameters[1].value);
+}
+
+TEST(ForEachQueryStringParameterTest, QueryStringWithEmptyParameterAtTheBeginning)
+{
+  ParameterHandler parameterHandler;
+  ForEachQueryStringParameter(L"&param=value", std::ref(parameterHandler));
+  ASSERT_EQ(2, parameterHandler.parameters.size());
+  EXPECT_EQ(L"", parameterHandler.parameters[0].name);
+  EXPECT_EQ(L"", parameterHandler.parameters[0].value);
+  EXPECT_EQ(L"param", parameterHandler.parameters[1].name);
+  EXPECT_EQ(L"value", parameterHandler.parameters[1].value);
+}
+
+TEST(ForEachQueryStringParameterTest, ParameterWithoutAssignSign)
+{
+  ParameterHandler parameterHandler;
+  ForEachQueryStringParameter(L"param", std::ref(parameterHandler));
+  ASSERT_EQ(1, parameterHandler.parameters.size());
+  EXPECT_EQ(L"param", parameterHandler.parameters[0].name);
+  EXPECT_EQ(L"", parameterHandler.parameters[0].value);
+}
+
+TEST(ForEachQueryStringParameterTest, ParametersWithoutAssignSign)
+{
+  ParameterHandler parameterHandler;
+  ForEachQueryStringParameter(L"param1&param2&param3", std::ref(parameterHandler));
+  ASSERT_EQ(3, parameterHandler.parameters.size());
+  EXPECT_EQ(L"param1", parameterHandler.parameters[0].name);
+  EXPECT_EQ(L"", parameterHandler.parameters[0].value);
+  EXPECT_EQ(L"param2", parameterHandler.parameters[1].name);
+  EXPECT_EQ(L"", parameterHandler.parameters[1].value);
+  EXPECT_EQ(L"param3", parameterHandler.parameters[2].name);
+  EXPECT_EQ(L"", parameterHandler.parameters[2].value);
+}
+
+TEST(ForEachQueryStringParameterTest, ParameterWithSeveralAssignSigns)
+{
+  ParameterHandler parameterHandler;
+  ForEachQueryStringParameter(L"param1=value1.1=value1.2", std::ref(parameterHandler));
+  ASSERT_EQ(1, parameterHandler.parameters.size());
+  EXPECT_EQ(L"param1", parameterHandler.parameters[0].name);
+  EXPECT_EQ(L"value1.1=value1.2", parameterHandler.parameters[0].value);
+}
+
+TEST(ForEachQueryStringParameterTest, ParameterWithEmptyValue)
+{
+  ParameterHandler parameterHandler;
+  ForEachQueryStringParameter(L"param1=", std::ref(parameterHandler));
+  ASSERT_EQ(1, parameterHandler.parameters.size());
+  EXPECT_EQ(L"param1", parameterHandler.parameters[0].name);
+  EXPECT_EQ(L"", parameterHandler.parameters[0].value);
+}
+
+TEST(ForEachQueryStringParameterTest, StopProcessingWhenHandlerReturnsFalse)
+{
+  struct LimitedParameterHandler : ParameterHandler
+  {
+    LimitedParameterHandler(uint32_t limit)
+      : callCounter(0), limit(limit)
+    {
+    }
+    bool operator()(const std::wstring& parameter, const std::wstring& value)
+    {
+      ++callCounter;
+      return ParameterHandler::operator()(parameter, value) && shouldContinue();
+    }
+    bool shouldContinue() const
+    {
+      return parameters.size() < limit;
+    }
+    uint32_t callCounter;
+    uint32_t limit;
+  } parameterHandler(2);

[Eric, 2015/02/13 16:33:43]

If you'd like to have the subclass definition inside the function body for a
single use, it would be clearer to eliminate the constructor argument and
initialize with the clause "limit(2)".

+  ForEachQueryStringParameter(L"param1=value1&param2=value2&param3=value3", std::ref(parameterHandler));
+  EXPECT_EQ(2, parameterHandler.callCounter);
+  ASSERT_EQ(2, parameterHandler.parameters.size());
+  EXPECT_EQ(L"param1", parameterHandler.parameters[0].name);
+  EXPECT_EQ(L"value1", parameterHandler.parameters[0].value);
+  EXPECT_EQ(L"param2", parameterHandler.parameters[1].name);
+  EXPECT_EQ(L"value2", parameterHandler.parameters[1].value);
+}
+
+TEST(ForEachQueryStringParameterTest, ParameterWithoutName)
+{
+  ParameterHandler parameterHandler;
+  ForEachQueryStringParameter(L"=param", std::ref(parameterHandler));
+  ASSERT_EQ(1, parameterHandler.parameters.size());
+  EXPECT_EQ(L"", parameterHandler.parameters[0].name);
+  EXPECT_EQ(L"param", parameterHandler.parameters[0].value);
+}
+
+TEST(ForEachQueryStringParameterTest, ParametersWithoutName)
+{
+  ParameterHandler parameterHandler;
+  ForEachQueryStringParameter(L"=param1&=param2&=param3", std::ref(parameterHandler));
+  ASSERT_EQ(3, parameterHandler.parameters.size());
+  EXPECT_EQ(L"", parameterHandler.parameters[0].name);
+  EXPECT_EQ(L"param1", parameterHandler.parameters[0].value);
+  EXPECT_EQ(L"", parameterHandler.parameters[1].name);
+  EXPECT_EQ(L"param2", parameterHandler.parameters[1].value);
+  EXPECT_EQ(L"", parameterHandler.parameters[2].name);
+  EXPECT_EQ(L"param3", parameterHandler.parameters[2].value);
+}