Mac: Implement about:memory.

This implements about:memory on Mac. It calls /bin/ps to obtain information
about processes (this is Apple's officially supported "API"). Unfortunately, ps
provides fairly minimal information (rss and vsize); top is better, but not a
stable API -- it has changed greatly between Mac OS 10.5 and 10.6, and moreover
the 10.6 version is more limited in its output formatting.

BUG=9653
TEST=Go to about:memory under a variety of conditions (with a variety of browsers loaded).

Review URL: http://codereview.chromium.org/333008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@31168 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 44 insertions, 0 deletions

diff --git a/base/mac_util_unittest.mm b/base/mac_util_unittest.mm
index 162a746..0abdee7 100644
--- a/base/mac_util_unittest.mm
+++ b/base/mac_util_unittest.mm
@@ -57,3 +57,47 @@ TEST_F(MacUtilTest, TestGrabWindowSnapshot) {
   [color getRed:&red green:&green blue:&blue alpha:&alpha];
   EXPECT_GE(red + green + blue, 3.0);
 }
+
+TEST_F(MacUtilTest, TestGetAppBundlePath) {
+  FilePath out;
+
+  // Make sure it doesn't crash.
+  out = mac_util::GetAppBundlePath(FilePath());
+  EXPECT_TRUE(out.empty());
+
+  // Some more invalid inputs.
+  const char* invalid_inputs[] = {
+    "/", "/foo", "foo", "/foo/bar.", "foo/bar.", "/foo/bar./bazquux",
+    "foo/bar./bazquux", "foo/.app", "//foo",
+  };
+  for (size_t i = 0; i < arraysize(invalid_inputs); i++) {
+    out = mac_util::GetAppBundlePath(FilePath(invalid_inputs[i]));
+    EXPECT_TRUE(out.empty()) << "loop: " << i;
+  }
+
+  // Some valid inputs; this and |expected_outputs| should be in sync.
+  struct {
+    const char *in;
+    const char *expected_out;
+  } valid_inputs[] = {
+    { "FooBar.app/", "FooBar.app" },
+    { "/FooBar.app", "/FooBar.app" },
+    { "/FooBar.app/", "/FooBar.app" },
+    { "//FooBar.app", "//FooBar.app" },
+    { "/Foo/Bar.app", "/Foo/Bar.app" },
+    { "/Foo/Bar.app/", "/Foo/Bar.app" },
+    { "/F/B.app", "/F/B.app" },
+    { "/F/B.app/", "/F/B.app" },
+    { "/Foo/Bar.app/baz", "/Foo/Bar.app" },
+    { "/Foo/Bar.app/baz/", "/Foo/Bar.app" },
+    { "/Foo/Bar.app/baz/quux.app/quuux", "/Foo/Bar.app" },
+    { "/Applications/Google Foo.app/bar/Foo Helper.app/quux/Foo Helper",
+        "/Applications/Google Foo.app" },
+  };
+  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(valid_inputs); i++) {
+    out = mac_util::GetAppBundlePath(FilePath(valid_inputs[i].in));
+    EXPECT_FALSE(out.empty()) << "loop: " << i;
+    EXPECT_STREQ(valid_inputs[i].expected_out,
+        out.value().c_str()) << "loop: " << i;
+  }
+}