diff --git a/b2/test/inv b/b2/test/inv
new file mode 100755
index 0000000..8009ee0
--- /dev/null
+++ b/b2/test/inv
@@ -0,0 +1,84 @@
+#!/bin/bash
+. ./Common
+
+###############################################################################
+
+tst "inventory: one item" <<EOF
+; /* no hierarchy */
+!-x
+USD
+!-i
+FOO R101X	CT	1234	1	USD 0	1 0.1 10 0.8 100 6
+EOF
+# provider name categ	stock units/pkg	curr add qty price ...
+
+expect <<EOF
+FOO R101X
+    FOO CT  1234 1  USD 0 1 0.1 10 0.8 100 6
+EOF
+
+#------------------------------------------------------------------------------
+
+tst "inventory: two items" <<EOF
+; /* no hierarchy */
+!-x
+USD
+!-i
+FOO R101X	CT	1234	1	USD 0	1 0.1 10 0.8 100 6
+FOO R101X-T	TR	1234	3000	USD 0	3000 13
+EOF
+
+expect <<EOF
+FOO R101X-T
+    FOO TR  1234 3000  USD 0 3000 13
+FOO R101X
+    FOO CT  1234 1  USD 0 1 0.1 10 0.8 100 6
+EOF
+
+#------------------------------------------------------------------------------
+
+tst "inventory: two files" <<EOF
+; /* no hierarchy */
+!-x
+USD
+!-i1
+FOO R101X	CT	1234	1	USD 0	1 0.1 10 0.8 100 6
+!-i2
+FOO R101X-T	TR	1234	3000	USD 0	3000 13
+EOF
+
+expect <<EOF
+FOO R101X
+    FOO CT  1234 1  USD 0 1 0.1 10 0.8 100 6
+FOO R101X-T
+    FOO TR  1234 3000  USD 0 3000 13
+EOF
+
+#------------------------------------------------------------------------------
+
+tst_fail "inventory: duplicate item" <<EOF
+; /* no hierarchy */
+!-x
+USD
+!-i
+FOO R101X	CT	1234	1	USD 0	1 0.1 10 0.8 100 6
+FOO R101X	CT	1234	1	USD 0	1 0.1 10 0.8 100 6
+EOF
+
+expect <<EOF
+i:3: part FOO R101X already has stock
+EOF
+
+#------------------------------------------------------------------------------
+
+tst_fail "inventory: unknown currency" <<EOF
+; /* no hierarchy */
+!-i
+FOO R101X-T	TR	1234	3000	EUR 0	3000 10.4
+EOF
+
+expect <<EOF
+i:2: unknown currency EUR
+EOF
+
+###############################################################################