test: add 7 tests for kappa bump and bump-all

- 4 tests for kappa bump: version update, version written to file,
  source URL preserved, requires version arg
- 3 tests for kappa bump-all: finds newer version, reports count,
  requires directory arg

Total: 103 → 110 in test-full.sh (30+23+110 = 163 overall)

test-full.sh

@@ -1101,6 +1101,68 @@ check "upgrade dry-run does not apply" \
     "$KAPPA upgrade --dry-run 2>&1" \
     'run kappa add'
 
+
+
+echo ""
+echo "=== Bump: explicit version update ==="
+echo ""
+
+cat > "$TMPDIR/bump-test.kap" << 'BMPEOF'
+package "bumpme" {
+    const version = "4.4.0"
+    const source  = "https://ftp.gnu.org/gnu/make/make-${version}.tar.gz"
+    sha256 = "oldhash"
+    license = "GPL-3.0-or-later"
+    build   { make }
+    install { make install }
+}
+BMPEOF
+
+check "bump updates version" \
+    "$KAPPA bump $TMPDIR/bump-test.kap 4.4.1" \
+    'bumped bumpme'
+
+check "bump writes correct version" \
+    "grep -c '4.4.1' $TMPDIR/bump-test.kap" \
+    '1'
+
+check "bump preserves source URL" \
+    "grep -c 'make-' $TMPDIR/bump-test.kap" \
+    '1'
+
+check_fail "bump requires version arg" \
+    "$KAPPA bump $TMPDIR/bump-test.kap" \
+    'requires'
+
+echo ""
+echo "=== Bump-all: directory scan ==="
+echo ""
+
+BPALLDIR="$TMPDIR/bumpall-pkgs"
+mkdir -p "$BPALLDIR"
+
+cat > "$BPALLDIR/make.kap" << 'BMPEOF'
+package "make" {
+    const version = "4.4.0"
+    const source  = "https://ftp.gnu.org/gnu/make/make-${version}.tar.gz"
+    sha256 = "old"
+    license = "GPL-3.0-or-later"
+    build   { make }
+    install { make install }
+}
+BMPEOF
+
+check "bump-all finds newer version" \
+    "$KAPPA bump-all $BPALLDIR" \
+    '4.4.0 → 4.4.1'
+
+check "bump-all reports count" \
+    "$KAPPA bump-all $BPALLDIR" \
+    'bumped'
+
+check_fail "bump-all needs directory" \
+    "$KAPPA bump-all" \
+    'requires a directory'
 rm -f "$KAPPA_ROOT/db/installed"
 echo "=== Rebuild: dry-run detection ==="
 echo ""