tests ~ reorganize tests

tests/by-util/test_hashsum.rs

@@ -0,0 +1,46 @@
+macro_rules! get_hash(
+    ($str:expr) => (
+        $str.split(' ').collect::<Vec<&str>>()[0]
+    );
+);
+
+macro_rules! test_digest {
+    ($($id:ident $t:ident $size:expr)*) => ($(
+
+    mod $id {
+        use crate::common::util::*;
+        static DIGEST_ARG: &'static str = concat!("--", stringify!($t));
+        static BITS_ARG: &'static str = concat!("--bits=", stringify!($size));
+        static EXPECTED_FILE: &'static str = concat!(stringify!($id), ".expected");
+
+        #[test]
+        fn test_single_file() {
+            let ts = TestScenario::new("hashsum");
+            assert_eq!(ts.fixtures.read(EXPECTED_FILE),
+                       get_hash!(ts.ucmd().arg(DIGEST_ARG).arg(BITS_ARG).arg("input.txt").succeeds().no_stderr().stdout));
+        }
+
+        #[test]
+        fn test_stdin() {
+            let ts = TestScenario::new("hashsum");
+            assert_eq!(ts.fixtures.read(EXPECTED_FILE),
+                       get_hash!(ts.ucmd().arg(DIGEST_ARG).arg(BITS_ARG).pipe_in_fixture("input.txt").succeeds().no_stderr().stdout));
+        }
+    }
+    )*)
+}
+
+test_digest! {
+    md5 md5 128
+    sha1 sha1 160
+    sha224 sha224 224
+    sha256 sha256 256
+    sha384 sha384 384
+    sha512 sha512 512
+    sha3_224 sha3 224
+    sha3_256 sha3 256
+    sha3_384 sha3 384
+    sha3_512 sha3 512
+    shake128_256 shake128 256
+    shake256_512 shake256 512
+}