[ADT] Fix a confusing interface spec and some annoying peculiarities

[oota-llvm.git] / unittests / ADT / StringRefTest.cpp

diff --git a/unittests/ADT/StringRefTest.cpp b/unittests/ADT/StringRefTest.cpp
index 8af07da24ea12d8706bb320f12063e277fa7ec07..6cf2e6a0454dcba5802721e5f5a1b72b70be6ebc 100644 (file)
--- a/unittests/ADT/StringRefTest.cpp
+++ b/unittests/ADT/StringRefTest.cpp
@@ -230,6 +230,54 @@ TEST(StringRefTest, Split2) {
   expected.push_back("a"); expected.push_back("b"); expected.push_back("c");
   StringRef("a,,b,c").split(parts, ',', 3, false);
   EXPECT_TRUE(parts == expected);
+
+  expected.clear(); parts.clear();
+  expected.push_back("");
+  StringRef().split(parts, ",", 0, true);
+  EXPECT_TRUE(parts == expected);
+
+  expected.clear(); parts.clear();
+  expected.push_back(StringRef());
+  StringRef("").split(parts, ",", 0, true);
+  EXPECT_TRUE(parts == expected);
+
+  expected.clear(); parts.clear();
+  StringRef("").split(parts, ",", 0, false);
+  EXPECT_TRUE(parts == expected);
+  StringRef().split(parts, ",", 0, false);
+  EXPECT_TRUE(parts == expected);
+
+  expected.clear(); parts.clear();
+  expected.push_back("a");
+  expected.push_back("");
+  expected.push_back("b");
+  expected.push_back("c,d");
+  StringRef("a,,b,c,d").split(parts, ",", 3, true);
+  EXPECT_TRUE(parts == expected);
+
+  expected.clear(); parts.clear();
+  expected.push_back("");
+  StringRef().split(parts, ',', 0, true);
+  EXPECT_TRUE(parts == expected);
+
+  expected.clear(); parts.clear();
+  expected.push_back(StringRef());
+  StringRef("").split(parts, ',', 0, true);
+  EXPECT_TRUE(parts == expected);
+
+  expected.clear(); parts.clear();
+  StringRef("").split(parts, ',', 0, false);
+  EXPECT_TRUE(parts == expected);
+  StringRef().split(parts, ',', 0, false);
+  EXPECT_TRUE(parts == expected);
+
+  expected.clear(); parts.clear();
+  expected.push_back("a");
+  expected.push_back("");
+  expected.push_back("b");
+  expected.push_back("c,d");
+  StringRef("a,,b,c,d").split(parts, ',', 3, true);
+  EXPECT_TRUE(parts == expected);
 }
 
 TEST(StringRefTest, Trim) {