whole_disc: inject a variant the reader never produces in the propagation test

Cargo.lock

@@ -850,15 +850,3 @@ dependencies = [
  "log",
  "simd-adler32",
 ]
-
-[[patch.unused]]
-name = "freemkv-engine"
-version = "1.7.7"
-
-[[patch.unused]]
-name = "freemkv-i18n"
-version = "1.7.7"
-
-[[patch.unused]]
-name = "freemkv-keysources"
-version = "1.7.7"

src/whole_disc_tests.rs

@@ -176,17 +176,17 @@ fn unit_aligned_widens_reads_onto_each_files_grid() {
 #[test]
 fn unit_aligned_propagates_inner_read_errors_on_both_paths() {
     let mut r = reader(vec![(100, 30, 100)]);
-    r.inner.fail = Some(|| Error::DecryptFailed);
+    r.inner.fail = Some(|| Error::Halted);
     let mut buf = vec![0u8; 3 * 2048];
     // Outside every span: plain read path.
     assert!(matches!(
         r.read_sectors(10, 3, &mut buf, false),
-        Err(Error::DecryptFailed)
+        Err(Error::Halted)
     ));
     // Inside a span: unit-widened path.
     assert!(matches!(
         r.read_sectors(101, 3, &mut buf, false),
-        Err(Error::DecryptFailed)
+        Err(Error::Halted)
     ));
     assert_eq!(r.inner.reads, vec![(10, 3), (100, 6)]);
 }