1 files changed, 39 insertions, 2 deletions
diff --git a/unittests/ADT/StringRefTest.cpp b/unittests/ADT/StringRefTest.cpp
index 5b6822ed757d..e308f2d7c64b 100644
--- a/unittests/ADT/StringRefTest.cpp
+++ b/unittests/ADT/StringRefTest.cpp
@@ -504,8 +504,22 @@ TEST(StringRefTest, Count) {
 }
 
 TEST(StringRefTest, EditDistance) {
-  StringRef Str("hello");
-  EXPECT_EQ(2U, Str.edit_distance("hill"));
+  StringRef Hello("hello");
+  EXPECT_EQ(2U, Hello.edit_distance("hill"));
+
+  StringRef Industry("industry");
+  EXPECT_EQ(6U, Industry.edit_distance("interest"));
+
+  StringRef Soylent("soylent green is people");
+  EXPECT_EQ(19U, Soylent.edit_distance("people soiled our green"));
+  EXPECT_EQ(26U, Soylent.edit_distance("people soiled our green",
+                                      /* allow replacements = */ false));
+  EXPECT_EQ(9U, Soylent.edit_distance("people soiled our green",
+                                      /* allow replacements = */ true,
+                                      /* max edit distance = */ 8));
+  EXPECT_EQ(53U, Soylent.edit_distance("people soiled our green "
+                                       "people soiled our green "
+                                       "people soiled our green "));
 }
 
 TEST(StringRefTest, Misc) {
@@ -852,6 +866,27 @@ TEST(StringRefTest, consumeIntegerSigned) {
   }
 }
 
+struct GetDoubleStrings {
+  const char *Str;
+  bool AllowInexact;
+  bool ShouldFail;
+  double D;
+} DoubleStrings[] = {{"0", false, false, 0.0},
+                     {"0.0", false, false, 0.0},
+                     {"-0.0", false, false, -0.0},
+                     {"123.45", false, true, 123.45},
+                     {"123.45", true, false, 123.45}};
+
+TEST(StringRefTest, getAsDouble) {
+  for (const auto &Entry : DoubleStrings) {
+    double Result;
+    StringRef S(Entry.Str);
+    EXPECT_EQ(Entry.ShouldFail, S.getAsDouble(Result, Entry.AllowInexact));
+    if (!Entry.ShouldFail)
+      EXPECT_EQ(Result, Entry.D);
+  }
+}
+
 static const char *join_input[] = { "a", "b", "c" };
 static const char join_result1[] = "a";
 static const char join_result2[] = "a:b:c";
@@ -878,6 +913,8 @@ TEST(StringRefTest, joinStrings) {
   EXPECT_TRUE(v2_join2);
   bool v2_join3 = join(v2.begin(), v2.end(), "::") == join_result3;
   EXPECT_TRUE(v2_join3);
+  v2_join3 = join(v2, "::") == join_result3;
+  EXPECT_TRUE(v2_join3);
 }