1 files changed, 59 insertions, 0 deletions
diff --git a/node_modules/bl/test/test.js b/node_modules/bl/test/test.js
index c95b1ba48..989534c91 100644
--- a/node_modules/bl/test/test.js
+++ b/node_modules/bl/test/test.js
@@ -53,6 +53,20 @@ tape('multi bytes from single buffer', function (t) {
   t.equal(bl.slice(0, 4).toString('ascii'), 'abcd')
   t.equal(bl.slice(0, 3).toString('ascii'), 'abc')
   t.equal(bl.slice(1, 4).toString('ascii'), 'bcd')
+  t.equal(bl.slice(-4, -1).toString('ascii'), 'abc')
+
+  t.end()
+})
+
+tape('multi bytes from single buffer (negative indexes)', function (t) {
+  var bl = new BufferList()
+  bl.append(new Buffer('buffer'))
+
+  t.equal(bl.length, 6)
+
+  t.equal(bl.slice(-6, -1).toString('ascii'), 'buffe')
+  t.equal(bl.slice(-6, -2).toString('ascii'), 'buff')
+  t.equal(bl.slice(-5, -2).toString('ascii'), 'uff')
 
   t.end()
 })
@@ -72,6 +86,7 @@ tape('multiple bytes from multiple buffers', function (t) {
   t.equal(bl.slice(3, 6).toString('ascii'), 'def')
   t.equal(bl.slice(3, 8).toString('ascii'), 'defgh')
   t.equal(bl.slice(5, 10).toString('ascii'), 'fghij')
+  t.equal(bl.slice(-7, -4).toString('ascii'), 'def')
 
   t.end()
 })
@@ -537,6 +552,50 @@ tape('copy an interval between two buffers', function (t) {
   t.end()
 })
 
+tape('shallow slice across buffer boundaries', function (t) {
+  var bl = new BufferList(['First', 'Second', 'Third'])
+
+  t.equal(bl.shallowSlice(3, 13).toString(), 'stSecondTh')
+  t.end()
+})
+
+tape('shallow slice within single buffer', function (t) {
+  var bl = new BufferList(['First', 'Second', 'Third'])
+
+  t.equal(bl.shallowSlice(5, 10).toString(), 'Secon')
+  t.end()
+})
+
+tape('shallow slice single buffer', function (t) {
+  t.plan(3)
+  var bl = new BufferList(['First', 'Second', 'Third'])
+
+  t.equal(bl.shallowSlice(0, 5).toString(), 'First')
+  t.equal(bl.shallowSlice(5, 11).toString(), 'Second')
+  t.equal(bl.shallowSlice(11, 16).toString(), 'Third')
+})
+
+tape('shallow slice with negative or omitted indices', function (t) {
+  t.plan(4)
+  var bl = new BufferList(['First', 'Second', 'Third'])
+
+  t.equal(bl.shallowSlice().toString(), 'FirstSecondThird')
+  t.equal(bl.shallowSlice(5).toString(), 'SecondThird')
+  t.equal(bl.shallowSlice(5, -3).toString(), 'SecondTh')
+  t.equal(bl.shallowSlice(-8).toString(), 'ondThird')
+})
+
+tape('shallow slice does not make a copy', function (t) {
+  t.plan(1)
+  var buffers = [new Buffer('First'), new Buffer('Second'), new Buffer('Third')]
+  var bl = (new BufferList(buffers)).shallowSlice(5, -3)
+
+  buffers[1].fill('h')
+  buffers[2].fill('h')
+
+  t.equal(bl.toString(), 'hhhhhhhh')
+})
+
 tape('duplicate', function (t) {
   t.plan(2)