cksum: implement and test --base64 output method

tests/by-util/test_cksum.rs

@@ -363,6 +363,43 @@ fn test_raw_multiple_files() {
         .code_is(1);
 }
 
+#[test]
+fn test_base64_raw_conflicts() {
+    new_ucmd!()
+        .arg("--base64")
+        .arg("--raw")
+        .arg("lorem_ipsum.txt")
+        .fails()
+        .no_stdout()
+        .stderr_contains("--base64")
+        .stderr_contains("cannot be used with")
+        .stderr_contains("--raw");
+}
+
+#[test]
+fn test_base64_single_file() {
+    for algo in ALGOS {
+        new_ucmd!()
+            .arg("--base64")
+            .arg("lorem_ipsum.txt")
+            .arg(format!("--algorithm={algo}"))
+            .succeeds()
+            .no_stderr()
+            .stdout_is_fixture_bytes(format!("base64/{algo}_single_file.expected"));
+    }
+}
+#[test]
+fn test_base64_multiple_files() {
+    new_ucmd!()
+        .arg("--base64")
+        .arg("--algorithm=md5")
+        .arg("lorem_ipsum.txt")
+        .arg("alice_in_wonderland.txt")
+        .succeeds()
+        .no_stderr()
+        .stdout_is_fixture_bytes(format!("base64/md5_multiple_files.expected"));
+}
+
 #[test]
 fn test_fail_on_folder() {
     let (at, mut ucmd) = at_and_ucmd!();

tests/fixtures/cksum/base64/blake2b_single_file.expected

@@ -0,0 +1 @@
+BLAKE2b (lorem_ipsum.txt) = DpegkYnlYMN4nAv/HwIBZoYe+FfR+/5FdN4YQuPAbKu5V15K9jCaFmFYwrQI08A4wbSdgos1FYFCzcA5bRGVww==

tests/fixtures/cksum/base64/bsd_single_file.expected

@@ -0,0 +1 @@
+08109     1 lorem_ipsum.txt

tests/fixtures/cksum/base64/crc_single_file.expected

@@ -0,0 +1 @@
+378294376 772 lorem_ipsum.txt

tests/fixtures/cksum/base64/md5_multiple_files.expected

@@ -0,0 +1,2 @@
+MD5 (lorem_ipsum.txt) = zXJGkPfcYXdd+sQApx8sqg==
+MD5 (alice_in_wonderland.txt) = 9vpwM+FhZqlYmqHAOI/9WA==

tests/fixtures/cksum/base64/md5_single_file.expected

@@ -0,0 +1 @@
+MD5 (lorem_ipsum.txt) = zXJGkPfcYXdd+sQApx8sqg==

tests/fixtures/cksum/base64/sha1_single_file.expected

@@ -0,0 +1 @@
+SHA1 (lorem_ipsum.txt) = qx3QuuHYiDo9GKZt5q+9KCUs++8=

tests/fixtures/cksum/base64/sha224_single_file.expected

@@ -0,0 +1 @@
+SHA224 (lorem_ipsum.txt) = PeZvvK0QbhtAqzkb5WxR0gB+sfnGVdD04pv8AQ==

tests/fixtures/cksum/base64/sha256_single_file.expected

@@ -0,0 +1 @@
+SHA256 (lorem_ipsum.txt) = 98QgUBxQ4AswklAQDWfqXpEJgVNrRYL+nENb2Ss/HwI=

tests/fixtures/cksum/base64/sha384_single_file.expected

@@ -0,0 +1 @@
+SHA384 (lorem_ipsum.txt) = S+S5Cg0NMpZpkpIQGfJKvIJNz7ixxAgQLx9niPuAupqaTFp7V1ozU6kKjucZSB3L

tests/fixtures/cksum/base64/sha512_single_file.expected

@@ -0,0 +1 @@
+SHA512 (lorem_ipsum.txt) = llRkqyVWqtWOvHPYmtIh5Vl5dSnsr8D0ZsEXlc/21uLGD5agfFQs/R9Cbl5P4KSKoVZnukQJayE9CBPNA436BQ==

tests/fixtures/cksum/base64/sm3_single_file.expected

@@ -0,0 +1 @@
+SM3 (lorem_ipsum.txt) = bSlrgF0GC/7SKAjfMI27m0MXeU3U7WdAoQdwp4Jpm8I=

tests/fixtures/cksum/base64/sysv_single_file.expected

@@ -0,0 +1 @@
+6985 2 lorem_ipsum.txt