str: Add trim()

1 files changed, 29 insertions, 0 deletions

diff --git a/test/str.cc b/test/str.cc
index 1339bb0..6d7edf2 100644
--- a/test/str.cc
+++ b/test/str.cc
@@ -36,3 +36,32 @@ TEST(str, split) {
   EXPECT_EQ("a", ret[1]);
   EXPECT_EQ("b", ret[2]);
 }
+
+TEST(str, trim) {
+  auto ret = str::trim("");
+  EXPECT_EQ("", ret);
+
+  ret = str::trim(" ");
+  EXPECT_EQ("", ret);
+
+  ret = str::trim("  ");
+  EXPECT_EQ("", ret);
+
+  ret = str::trim("foo");
+  EXPECT_EQ("foo", ret);
+
+  ret = str::trim(" foo");
+  EXPECT_EQ("foo", ret);
+
+  ret = str::trim(" foo ");
+  EXPECT_EQ("foo", ret);
+
+  ret = str::trim("foo ");
+  EXPECT_EQ("foo", ret);
+
+  ret = str::trim("  foo bar           ");
+  EXPECT_EQ("foo bar", ret);
+
+  ret = str::trim("\tfoo bar\r\n");
+  EXPECT_EQ("foo bar", ret);
+}