1 files changed, 34 insertions, 0 deletions
diff --git a/tests/unit/test_btrfs.bats b/tests/unit/test_btrfs.bats
index 15bf141..6205311 100644
--- a/tests/unit/test_btrfs.bats
+++ b/tests/unit/test_btrfs.bats
@@ -89,3 +89,37 @@ setup() {
     run parse_btrfs_subvol_opts "@x" "nodatacow,nosuid"
     [ "$output" = "subvol=@x,noatime,space_cache=v2,discard=async,nodatacow,nosuid,nodev" ]
 }
+
+#############################
+# luks_mappings_open
+#############################
+# The failure cleanup can't trust close_luks_container's exit status (it
+# swallows errors), so it checks whether a mapping still exists. Names
+# follow get_luks_devices: the bare LUKS_MAPPER_NAME, then a numeric suffix.
+
+@test "luks_mappings_open succeeds when the bare mapping exists" {
+    MAPPER_DIR="$BATS_TEST_TMPDIR/mapper"; mkdir -p "$MAPPER_DIR"
+    touch "$MAPPER_DIR/$LUKS_MAPPER_NAME"
+    run luks_mappings_open
+    [ "$status" -eq 0 ]
+}
+
+@test "luks_mappings_open succeeds when only a suffixed mapping exists" {
+    MAPPER_DIR="$BATS_TEST_TMPDIR/mapper"; mkdir -p "$MAPPER_DIR"
+    touch "$MAPPER_DIR/${LUKS_MAPPER_NAME}1"
+    run luks_mappings_open
+    [ "$status" -eq 0 ]
+}
+
+@test "luks_mappings_open fails when no mapping exists" {
+    MAPPER_DIR="$BATS_TEST_TMPDIR/mapper"; mkdir -p "$MAPPER_DIR"
+    run luks_mappings_open
+    [ "$status" -eq 1 ]
+}
+
+@test "luks_mappings_open ignores unrelated mappings" {
+    MAPPER_DIR="$BATS_TEST_TMPDIR/mapper"; mkdir -p "$MAPPER_DIR"
+    touch "$MAPPER_DIR/control" "$MAPPER_DIR/vg-root" "$MAPPER_DIR/${LUKS_MAPPER_NAME}-old"
+    run luks_mappings_open
+    [ "$status" -eq 1 ]
+}