1 files changed, 29 insertions, 0 deletions
diff --git a/chromium/components/arc/arc_util_unittest.cc b/chromium/components/arc/arc_util_unittest.cc
index 1dd651d631c..165f40d04b6 100644
--- a/chromium/components/arc/arc_util_unittest.cc
+++ b/chromium/components/arc/arc_util_unittest.cc
@@ -10,6 +10,8 @@
 #include "ash/public/cpp/app_types.h"
 #include "base/base_switches.h"
 #include "base/command_line.h"
+#include "base/files/file_util.h"
+#include "base/files/scoped_temp_dir.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/test/scoped_feature_list.h"
@@ -275,5 +277,32 @@ TEST_F(ArcUtilTest, ScaleFactorToDensity) {
   EXPECT_EQ(240, GetLcdDensityForDeviceScaleFactor(2.0));
 }
 
+TEST_F(ArcUtilTest, GenerateFirstStageFstab) {
+  constexpr const char kFakeCombinedBuildPropPath[] = "/path/to/build.prop";
+  constexpr const char kAnotherFakeCombinedBuildPropPath[] =
+      "/foo/bar/baz.prop";
+
+  auto* command_line = base::CommandLine::ForCurrentProcess();
+  command_line->InitFromArgv({"", "--enable-arcvm"});
+
+  std::string content;
+  base::ScopedTempDir dir;
+  ASSERT_TRUE(dir.CreateUniqueTempDir());
+  const base::FilePath fstab(dir.GetPath().Append("fstab"));
+
+  // Generate the fstab and verify the content.
+  EXPECT_TRUE(GenerateFirstStageFstab(
+      base::FilePath(kFakeCombinedBuildPropPath), fstab));
+  EXPECT_TRUE(base::ReadFileToString(fstab, &content));
+  EXPECT_NE(std::string::npos, content.find(kFakeCombinedBuildPropPath));
+
+  // Generate the fstab again with the other prop file and verify the content.
+  EXPECT_TRUE(GenerateFirstStageFstab(
+      base::FilePath(kAnotherFakeCombinedBuildPropPath), fstab));
+  EXPECT_TRUE(base::ReadFileToString(fstab, &content));
+  EXPECT_EQ(std::string::npos, content.find(kFakeCombinedBuildPropPath));
+  EXPECT_NE(std::string::npos, content.find(kAnotherFakeCombinedBuildPropPath));
+}
+
 }  // namespace
 }  // namespace arc