add functions for normalizing win32 include paths

(Note from Evan: this is landing Scott's code more or less verbatim
without a lot of analysis; it could maybe be simplified and reduced,
but it's only intended to be used in the MSVC helper so it's fine
to be experimental.)

1 files changed, 98 insertions, 0 deletions

diff --git a/src/includes_normalize_test.cc b/src/includes_normalize_test.cc
new file mode 100644
index 0000000..97f7174
--- /dev/null
+++ b/src/includes_normalize_test.cc
@@ -0,0 +1,98 @@
+// Copyright 2012 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "includes_normalize.h"
+
+#include <gtest/gtest.h>
+
+#include "test.h"
+#include "util.h"
+
+TEST(IncludesNormalize, Simple) {
+  EXPECT_EQ("b", IncludesNormalize::Normalize("a\\..\\b", NULL));
+  EXPECT_EQ("b", IncludesNormalize::Normalize("a\\../b", NULL));
+  EXPECT_EQ("a\\b", IncludesNormalize::Normalize("a\\.\\b", NULL));
+  EXPECT_EQ("a\\b", IncludesNormalize::Normalize("a\\./b", NULL));
+}
+
+namespace {
+
+string GetCurDir() {
+  char buf[_MAX_PATH];
+  _getcwd(buf, sizeof(buf));
+  vector<string> parts = IncludesNormalize::Split(string(buf), '\\');
+  return parts[parts.size() - 1];
+}
+
+}  // namespace
+
+TEST(IncludesNormalize, WithRelative) {
+  string currentdir = IncludesNormalize::ToLower(GetCurDir());
+  EXPECT_EQ("c", IncludesNormalize::Normalize("a/b/c", "a/b"));
+  EXPECT_EQ("a", IncludesNormalize::Normalize(IncludesNormalize::AbsPath("a"), NULL));
+  EXPECT_EQ(string("..\\") + currentdir + string("\\a"),
+            IncludesNormalize::Normalize("a", "../b"));
+  EXPECT_EQ(string("..\\") + currentdir + string("\\a\\b"),
+            IncludesNormalize::Normalize("a/b", "../c"));
+  EXPECT_EQ("..\\..\\a", IncludesNormalize::Normalize("a", "b/c"));
+  EXPECT_EQ(".", IncludesNormalize::Normalize("a", "a"));
+}
+
+TEST(IncludesNormalize, Case) {
+  EXPECT_EQ("b", IncludesNormalize::Normalize("Abc\\..\\b", NULL));
+  EXPECT_EQ("bdef", IncludesNormalize::Normalize("Abc\\..\\BdEf", NULL));
+  EXPECT_EQ("a\\b", IncludesNormalize::Normalize("A\\.\\b", NULL));
+  EXPECT_EQ("a\\b", IncludesNormalize::Normalize("A\\./b", NULL));
+  EXPECT_EQ("a\\b", IncludesNormalize::Normalize("A\\.\\B", NULL));
+  EXPECT_EQ("a\\b", IncludesNormalize::Normalize("A\\./B", NULL));
+}
+
+TEST(IncludesNormalize, Join) {
+  vector<string> x;
+  EXPECT_EQ("", IncludesNormalize::Join(x, ':'));
+  x.push_back("alpha");
+  EXPECT_EQ("alpha", IncludesNormalize::Join(x, ':'));
+  x.push_back("beta");
+  x.push_back("gamma");
+  EXPECT_EQ("alpha:beta:gamma", IncludesNormalize::Join(x, ':'));
+}
+
+TEST(IncludesNormalize, Split) {
+  EXPECT_EQ("", IncludesNormalize::Join(IncludesNormalize::Split("", '/'), ':'));
+  EXPECT_EQ("a", IncludesNormalize::Join(IncludesNormalize::Split("a", '/'), ':'));
+  EXPECT_EQ("a:b:c", IncludesNormalize::Join(IncludesNormalize::Split("a/b/c", '/'), ':'));
+}
+
+TEST(IncludesNormalize, ToLower) {
+  EXPECT_EQ("", IncludesNormalize::ToLower(""));
+  EXPECT_EQ("stuff", IncludesNormalize::ToLower("Stuff"));
+  EXPECT_EQ("stuff and things", IncludesNormalize::ToLower("Stuff AND thINGS"));
+  EXPECT_EQ("stuff 3and thin43gs", IncludesNormalize::ToLower("Stuff 3AND thIN43GS"));
+}
+
+TEST(IncludesNormalize, DifferentDrive) {
+  EXPECT_EQ("stuff.h",
+      IncludesNormalize::Normalize("p:\\vs08\\stuff.h", "p:\\vs08"));
+  EXPECT_EQ("stuff.h",
+      IncludesNormalize::Normalize("P:\\vs08\\stuff.h", "p:\\vs08"));
+  EXPECT_EQ("P:\\vs08\\stuff.h",
+      IncludesNormalize::Normalize("P:\\vs08\\stuff.h", "c:\\vs08"));
+  EXPECT_EQ("P:\\vs08\\stuff.h",
+      IncludesNormalize::Normalize("P:\\vs08\\stuff.h", "D:\\stuff/things"));
+  EXPECT_EQ("P:\\vs08\\stuff.h",
+      IncludesNormalize::Normalize("P:/vs08\\stuff.h", "D:\\stuff/things"));
+  // TODO: this fails; fix it.
+  //EXPECT_EQ("P:\\wee\\stuff.h",
+  //    IncludesNormalize::Normalize("P:/vs08\\../wee\\stuff.h", "D:\\stuff/things"));
+}