uniq: add test for case-insensitive comparison

src/uniq/Cargo.toml

@@ -9,8 +9,10 @@ path = "uniq.rs"
 
 [dependencies]
 getopts = "*"
-libc = "*"
-uucore = { path="../uucore" }
+
+[dependencies.uucore]
+path="../uucore"
+default-features = false
 
 [[bin]]
 name = "uniq"

tests/test_uniq.rs

@@ -94,9 +94,16 @@ fn test_stdin_repeated_only() {
         .run().stdout_is_fixture("sorted-repeated-only.expected");
 }
 
+#[test]
+fn test_stdin_ignore_case() {
+    new_ucmd()
+        .args(&["-i"]).pipe_in_fixture(INPUT)
+        .run().stdout_is_fixture("sorted-ignore-case.expected");
+}
+
 #[test]
 fn test_stdin_zero_terminated() {
     new_ucmd()
         .args(&["-z"]).pipe_in_fixture(SORTED_ZERO_TERMINATED)
         .run().stdout_is_fixture("sorted-zero-terminated.expected");
-}
+}