chore: add test for reading tables with trailing garbage in names

disk3.img contains a label written with 512-byte sector size. disk4.img
contains a label with 4096-byte sector size. This test makes sure
the CRC checksum performs correctly when the partition table contains
such name fields. Both labels contains a partition with (intended)
trailing garbage in its name:

 0000: af 3d c6 0f 83 84 72 47  8e 79 3d 69 d8 47 7d e4   .=....rG .y=i.G}.
 0010: 84 d6 89 47 76 ba 4e 45  b2 50 e0 65 2a 5a 4f 76   ...Gv.NE .P.e*ZOv
 0020: 32 00 00 00 00 00 00 00  41 00 00 00 00 00 00 00   2....... A.......
 0030: 00 00 00 00 00 00 00 00  4e 00 61 00 6d 00 65 00   ........ N.a.m.e.
 0040: 20 00 77 00 69 00 74 00  68 00 20 00 67 00 61 00    .w.i.t. h. .g.a.
 0050: 72 00 62 00 61 00 67 00  65 00 00 00 2d 00 3e 00   r.b.a.g. e...-.>.
 0060: 20 00 67 00 61 00 72 00  62 00 61 00 67 00 65 00    .g.a.r. b.a.g.e.
 0070: 20 00 68 00 65 00 72 00  65 00 21 00 00 00 00 00    .h.e.r. e.!.....

Author: Cyanoxygen

src/lib.rs

@@ -1368,6 +1368,8 @@ mod test {
 
     const DISK1: &str = "tests/fixtures/disk1.img";
     const DISK2: &str = "tests/fixtures/disk2.img";
+    const DISK3: &str = "tests/fixtures/disk3.img";
+    const DISK4: &str = "tests/fixtures/disk4.img";
 
     #[test]
     fn read_header_and_partition_entries() {
@@ -1925,6 +1927,28 @@ mod test {
         test(DISK1, 512);
         test(DISK2, 4096);
     }
+
+    #[test]
+    fn read_label_with_trailing_garbage_in_names() {
+        fn test(path: &str, ss: u64) {
+            let mut f = fs::File::open(path).unwrap();
+            let gpt = GPT::read_from(&mut f, ss);
+            // CRC check passes with trailing garbage within partition names
+            assert!(gpt.is_ok());
+            // Trailing garbage data are visible using hexdump
+            assert_eq!(
+                gpt.unwrap()
+                    .partitions
+                    .get(1)
+                    .unwrap()
+                    .partition_name
+                    .as_str(),
+                "Name with garbage"
+            );
+        }
+        test(DISK3, 512);
+        test(DISK4, 4096);
+    }
 }
 
 #[cfg(doctest)]