Set the initial resolution of an RDP session to the client screen resolution if it is available.

remoting/base/capabilities_unittest.cc

+// Copyright 2013 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 <algorithm>
+#include <vector>
+
+#include "base/string_util.h"
+#include "remoting/base/capabilities.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+struct HasCapabilityTestData {
+  const char* capabilities;
+  const char* key;
+  bool result;
+};
+
+struct IntersectTestData {
+  const char* left;
+  const char* right;
+  const char* result;
+};
+
+}  // namespace
+
+namespace remoting {
+
+TEST(CapabilitiesTest, Empty) {
+  // Expect that nothing can be found in an empty set.
+  EXPECT_FALSE(HasCapability("", "a"));
+  EXPECT_FALSE(HasCapability(" ", "a"));
+  EXPECT_FALSE(HasCapability("  ", "a"));
+
+  // Expect that nothing can be found in an empty set, event when the key is
+  // empty.
+  EXPECT_FALSE(HasCapability("", ""));
+  EXPECT_FALSE(HasCapability(" ", ""));
+  EXPECT_FALSE(HasCapability("  ", ""));
+}
+
+TEST(CapabilitiesTest, HasCapability) {
+  HasCapabilityTestData data[] = {
+    { "", "", false },
+    { "a", "", false },
+    { "a", "a", true },
+    { "a a", "", false },
+    { "a a", "a", true },
+    { "a a", "z", false },
+    { "a b", "", false },
+    { "a b", "a", true },
+    { "a b", "b", true },
+    { "a b", "z", false },
+    { "a b c", "", false },
+    { "a b c", "a", true },
+    { "a b c", "b", true },
+    { "a b c", "z", false }
+  };
+
+  // Verify that HasCapability(|capabilities|, |key|) returns |result|.
+  // |result|.
+  for (size_t i = 0; i < arraysize(data); ++i) {
+    std::vector<std::string> caps;
+    Tokenize(data[i].capabilities, " ", &caps);
+
+    do {
+      EXPECT_EQ(HasCapability(JoinString(caps, " "), data[i].key),
+                data[i].result);
+    } while (std::next_permutation(caps.begin(), caps.end()));
+  }
+}
+
+TEST(CapabilitiesTest, Intersect) {
+  EXPECT_EQ(IntersectCapabilities("a", "a"), "a");
+
+  IntersectTestData data[] = {
+    { "", "", "" },
+    { "a", "", "" },
+    { "a", "a", "a" },
+    { "a", "b", "" },
+    { "a b", "", "" },
+    { "a b", "a", "a" },
+    { "a b", "b", "b" },
+    { "a b", "z", "" },
+    { "a b c", "a", "a" },
+    { "a b c", "b", "b" },
+    { "a b c", "a b", "a b" },
+    { "a b c", "b a", "a b" },
+    { "a b c", "z", "" }
+  };
+
+  // Verify that intersection of |right| with all permutations of |left| yields
+  // |result|.
+  for (size_t i = 0; i < arraysize(data); ++i) {
+    std::vector<std::string> caps;
+    Tokenize(data[i].left, " ", &caps);
+
+    do {
+      EXPECT_EQ(IntersectCapabilities(JoinString(caps, " "), data[i].right),
+                data[i].result);
+    } while (std::next_permutation(caps.begin(), caps.end()));
+  }
+}
+
+}  // namespace remoting