1 files changed, 80 insertions, 0 deletions
diff --git a/node_modules/memory-pager/test.js b/node_modules/memory-pager/test.js
new file mode 100644
index 0000000..1638210
--- /dev/null
+++ b/node_modules/memory-pager/test.js
@@ -0,0 +1,80 @@
+var tape = require('tape')
+var pager = require('./')
+
+tape('get page', function (t) {
+  var pages = pager(1024)
+
+  var page = pages.get(0)
+
+  t.same(page.offset, 0)
+  t.same(page.buffer, Buffer.alloc(1024))
+  t.end()
+})
+
+tape('get page twice', function (t) {
+  var pages = pager(1024)
+  t.same(pages.length, 0)
+
+  var page = pages.get(0)
+
+  t.same(page.offset, 0)
+  t.same(page.buffer, Buffer.alloc(1024))
+  t.same(pages.length, 1)
+
+  var other = pages.get(0)
+
+  t.same(other, page)
+  t.end()
+})
+
+tape('get no mutable page', function (t) {
+  var pages = pager(1024)
+
+  t.ok(!pages.get(141, true))
+  t.ok(pages.get(141))
+  t.ok(pages.get(141, true))
+
+  t.end()
+})
+
+tape('get far out page', function (t) {
+  var pages = pager(1024)
+
+  var page = pages.get(1000000)
+
+  t.same(page.offset, 1000000 * 1024)
+  t.same(page.buffer, Buffer.alloc(1024))
+  t.same(pages.length, 1000000 + 1)
+
+  var other = pages.get(1)
+
+  t.same(other.offset, 1024)
+  t.same(other.buffer, Buffer.alloc(1024))
+  t.same(pages.length, 1000000 + 1)
+  t.ok(other !== page)
+
+  t.end()
+})
+
+tape('updates', function (t) {
+  var pages = pager(1024)
+
+  t.same(pages.lastUpdate(), null)
+
+  var page = pages.get(10)
+
+  page.buffer[42] = 1
+  pages.updated(page)
+
+  t.same(pages.lastUpdate(), page)
+  t.same(pages.lastUpdate(), null)
+
+  page.buffer[42] = 2
+  pages.updated(page)
+  pages.updated(page)
+
+  t.same(pages.lastUpdate(), page)
+  t.same(pages.lastUpdate(), null)
+
+  t.end()
+})