RAID (0/1/4/5/6/10/linear, mdadm 0.90 e 1.x, degradado) e LVM2 remontados no disco virtual

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

crates/guara-core/tests/lvm.rs

@@ -0,0 +1,31 @@
+//! LVM2: imagem real do conjunto de testes do dfvfs (target/testdata/dfvfs/lvm.raw).
+
+use guara_core::lvm;
+use guara_core::partition::detect_fs;
+use guara_core::source::{FileSource, Source};
+use std::sync::Arc;
+
+#[test]
+fn assembles_real_lvm_image() {
+    let p = std::path::PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("../../target/testdata/dfvfs/lvm.raw");
+    if !p.exists() {
+        eprintln!("SKIP: execute scripts/fetch-testdata.sh");
+        return;
+    }
+    let src: Arc<dyn Source> = Arc::new(FileSource::open(&p).unwrap());
+    let pv = lvm::read_pv(src.as_ref()).expect("PV");
+    assert_eq!(pv.vg_name, "test_volume_group");
+    let vgs = lvm::assemble_vgs(vec![(src, pv)]);
+    assert_eq!(vgs.len(), 1);
+    let vg = &vgs[0];
+    assert!(vg.warnings.is_empty(), "{:?}", vg.warnings);
+    let names: Vec<&str> = vg.lvs.iter().map(|(n, _)| n.as_str()).collect();
+    assert_eq!(names, ["test_logical_volume1", "test_logical_volume2"]);
+    for (n, lv) in &vg.lvs {
+        assert_eq!(lv.size(), 4 << 20, "{n}");
+        let fs = detect_fs(lv.as_ref(), 0);
+        eprintln!("{n}: {fs:?}");
+        // O segundo volume da imagem de referência foi criado e nunca formatado.
+        assert_eq!(fs.is_some(), n == "test_logical_volume1", "{n}");
+    }
+}