From 3ebdc5e35447d8dd64873396a31d246b8604c831 Mon Sep 17 00:00:00 2001
From: Abhishek Shrestha <avsek.stha07@gmail.com>
Date: Mon, 22 Feb 2021 21:24:14 +0545
Subject: [PATCH 1/2] test cases for generating preview of iceberg orders

---
 test/lib/iceberg/meta/gen_preview.js | 49 ++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 test/lib/iceberg/meta/gen_preview.js

diff --git a/test/lib/iceberg/meta/gen_preview.js b/test/lib/iceberg/meta/gen_preview.js
new file mode 100644
index 00000000..7fc4897c
--- /dev/null
+++ b/test/lib/iceberg/meta/gen_preview.js
@@ -0,0 +1,49 @@
+/* eslint-env mocha */
+'use strict'
+
+const assert = require('assert')
+const genPreview = require('../../../../lib/iceberg/meta/gen_preview')
+
+const getState = (argOverrides = {}) => {
+  return {
+    amount: 42,
+    sliceAmount: 10,
+    symbol: 'tBTCUSD',
+    price: 50000,
+    orderType: 'LIMIT',
+    ...argOverrides
+  }
+}
+
+describe('iceberg:meta:init_state', () => {
+  it('generates the sliced order a/c to given input', () => {
+    const o = genPreview(getState())
+    const [slicedOrder] = o
+
+    assert.deepStrictEqual(o.length, 1, 'no order created')
+    assert.deepStrictEqual(slicedOrder.amount, 10, 'invalid sliced amount')
+    assert.deepStrictEqual(slicedOrder.symbol, 'tBTCUSD', 'invalid order symbol')
+    assert.deepStrictEqual(slicedOrder.price, 50000, 'invalid order price')
+  })
+
+  it('generates the correct sliced order for float amounts', () => {
+    const o = genPreview(getState({
+      excessAsHidden: true,
+      amount: 0.3,
+      sliceAmount: 0.1
+    }))
+    const [excessOrder, slicedOrder] = o
+
+    assert.deepStrictEqual(excessOrder.amount, 0.2, 'invalid excess sliced amount')
+    assert.deepStrictEqual(slicedOrder.amount, 0.1, 'invalid sliced amount')
+  })
+
+  it('generates an extra hidden order for excess amount', () => {
+    const o = genPreview(getState({ excessAsHidden: true }))
+    const [excessOrder] = o
+
+    assert.deepStrictEqual(o.length, 2, 'did not create an order for excess amount')
+    assert.ok(excessOrder.hidden, 'did not create a hidden order for excess amount')
+    assert.deepStrictEqual(excessOrder.amount, 32, 'invalid excess amount')
+  })
+})

From 2c48203df610b5da952ec5a8c6da970e1e4be8fb Mon Sep 17 00:00:00 2001
From: Abhishek Shrestha <avsek.stha07@gmail.com>
Date: Tue, 23 Feb 2021 14:46:26 +0545
Subject: [PATCH 2/2] order_fill bignumber issue fix

---
 test/lib/iceberg/events/orders_order_fill.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/test/lib/iceberg/events/orders_order_fill.js b/test/lib/iceberg/events/orders_order_fill.js
index a0119627..3dfd635b 100644
--- a/test/lib/iceberg/events/orders_order_fill.js
+++ b/test/lib/iceberg/events/orders_order_fill.js
@@ -38,6 +38,10 @@ describe('iceberg:events:orders_order_fill', () => {
 
     onOrderFill({
       ...instance,
+      state: {
+        ...instance.state,
+        remainingAmount: 100
+      },
       h: {
         ...instance.h,
         emit: (eName, gid, orders, cancelDelay) => {