[fix] #1394: add the test revealing the bug (joining with < sigQty valid certs)

test/integration/fork-resolution/coming-back-with-less-than-sigqty.ts

+// Source file from duniter: Crypto-currency software to manage libre currency such as Ğ1
+// Copyright (C) 2018  Cedric Moreau <cem.moreau@gmail.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+import {assertEqual, writeBasicTestWithConfAnd2Users} from "../tools/test-framework"
+import {CommonConstants} from "../../../app/lib/common-libs/constants"
+
+const currentVersion = CommonConstants.BLOCK_GENESIS_VERSION
+
+describe('A member coming back with less than `sigQty` valid certs total', () => writeBasicTestWithConfAnd2Users({
+  sigQty: 2,
+  sigReplay: 0,
+  sigPeriod: 0,
+  sigValidity: 10,
+  dtDiffEval: 1,
+  forksize: 0,
+}, (test) => {
+
+  const now = 1500000000
+
+  test('(t = 0) should init with a 3 members WoT with bidirectionnal certs', async (s1, cat, tac, toc) => {
+    CommonConstants.BLOCK_GENESIS_VERSION = 11
+    await cat.createIdentity()
+    await tac.createIdentity()
+    await toc.createIdentity()
+    await cat.cert(tac)
+    await cat.cert(toc)
+    await tac.cert(cat)
+    await tac.cert(toc)
+    await toc.cert(cat)
+    await toc.cert(tac)
+    await cat.join()
+    await tac.join()
+    await toc.join()
+    const b0 = await s1.commit({ time: now })
+    assertEqual(b0.certifications.length, 6)
+    const b1 = await s1.commit({ time: now })
+    assertEqual(b1.membersCount, 3)
+  })
+
+  test('(t = 5) cat & tac certify each other', async (s1, cat, tac, toc) => {
+    await s1.commit({ time: now + 5 })
+    await s1.commit({ time: now + 5 })
+    await new Promise(resolve => setTimeout(resolve, 500))
+    // cat and tac certify each other to stay in the WoT
+    await tac.cert(cat)
+    await toc.cert(cat) // <-- toc adds the 2nd certification
+    const b1 = await s1.commit({ time: now + 6 })
+    assertEqual(b1.certifications.length, 2)
+    await cat.cert(tac)
+    await toc.cert(tac) // <-- toc adds the 2nd certification
+    const b2 = await s1.commit({ time: now + 6 })
+    assertEqual(b2.certifications.length, 2)
+    // // /!\/!\/!\
+    // // toc gets certified by cat, to a have a remaining valid certification in the blockchain: THIS WONT BE ENOUGH!
+    await cat.cert(toc)
+    // // /!\/!\/!\
+    const b4 = await s1.commit({ time: now + 6 })
+    assertEqual(b4.certifications.length, 1)
+  })
+
+  test('(t = 12) toc is excluded for lack of certifications', async (s1, cat, tac, toc) => {
+    await s1.commit({ time: now + 12 })
+    await s1.commit({ time: now + 12 })
+    const b = await s1.commit({ time: now + 12 })
+    assertEqual(b.excluded.length, 1)
+    assertEqual(b.excluded[0], toc.pub)
+  })
+
+  test('(t = 13 #1) toc is coming back with 1 cert only! a renewal counted twice', async (s1, cat, tac, toc) => {
+    await s1.commit({ time: now + 13 })
+    await s1.commit({ time: now + 13 })
+    const c1 = await cat.makeCert(toc) // <-- a renewal ==> this is what we want to observe
+    const join = await toc.makeMembership('IN')
+    const b = await s1.commit({
+      time: now + 13,
+      joiners: [join],
+      certifications: [c1]
+    })
+    assertEqual(b.membersCount, 3)
+    assertEqual(b.number, 12)
+  })
+
+  after(() => {
+    CommonConstants.BLOCK_GENESIS_VERSION = currentVersion
+  })
+}))
+