am 876d6995: Merge "Update aosp/master LLVM for rebase to r222494."

* commit '876d6995443e99d13696f3941c3a789a4daa7c7a':
  Update aosp/master LLVM for rebase to r222494.

1 files changed, 56 insertions, 0 deletions

diff --git a/unittests/Bitcode/BitstreamReaderTest.cpp b/unittests/Bitcode/BitstreamReaderTest.cpp
new file mode 100644
index 0000000..b11d7fd
--- /dev/null
+++ b/unittests/Bitcode/BitstreamReaderTest.cpp
@@ -0,0 +1,56 @@
+//===- BitstreamReaderTest.cpp - Tests for BitstreamReader ----------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Bitcode/BitstreamReader.h"
+#include "gtest/gtest.h"
+
+using namespace llvm;
+
+namespace {
+
+TEST(BitstreamReaderTest, AtEndOfStream) {
+  uint8_t Bytes[4] = {
+    0x00, 0x01, 0x02, 0x03
+  };
+  BitstreamReader Reader(std::begin(Bytes), std::end(Bytes));
+  BitstreamCursor Cursor(Reader);
+
+  EXPECT_FALSE(Cursor.AtEndOfStream());
+  (void)Cursor.Read(8);
+  EXPECT_FALSE(Cursor.AtEndOfStream());
+  (void)Cursor.Read(24);
+  EXPECT_TRUE(Cursor.AtEndOfStream());
+
+  Cursor.JumpToBit(0);
+  EXPECT_FALSE(Cursor.AtEndOfStream());
+
+  Cursor.JumpToBit(32);
+  EXPECT_TRUE(Cursor.AtEndOfStream());
+}
+
+TEST(BitstreamReaderTest, AtEndOfStreamJump) {
+  uint8_t Bytes[4] = {
+    0x00, 0x01, 0x02, 0x03
+  };
+  BitstreamReader Reader(std::begin(Bytes), std::end(Bytes));
+  BitstreamCursor Cursor(Reader);
+
+  Cursor.JumpToBit(32);
+  EXPECT_TRUE(Cursor.AtEndOfStream());
+}
+
+TEST(BitstreamReaderTest, AtEndOfStreamEmpty) {
+  uint8_t Dummy = 0xFF;
+  BitstreamReader Reader(&Dummy, &Dummy);
+  BitstreamCursor Cursor(Reader);
+
+  EXPECT_TRUE(Cursor.AtEndOfStream());
+}
+
+} // end anonymous namespace