Init

Nodejs/node_modules/stream-meter/test/index.js

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+var test = require("tape").test
+var spigot = require("stream-spigot")
+var concat = require("concat-stream")
+
+var meter
+
+// Stats
+test("load", function (t) {
+  t.plan(1)
+
+  meter = require("../")
+  t.ok(meter, "loaded module")
+})
+
+test("no max (passthrough)", function (t) {
+  t.plan(2)
+
+  var m = meter()
+
+  var content = "ABCD1234"
+
+  function match(d) {
+    t.equals(d.toString(), content)
+    t.equals(m.bytes, 8)
+  }
+
+  spigot([content]).pipe(m).pipe(concat(match))
+})
+
+test("under max", function (t) {
+  t.plan(2)
+
+  var m = meter(100)
+
+  var content = "ABCD1234"
+
+  function match(d) {
+    t.equals(d.toString(), content)
+    t.equals(m.bytes, 8)
+  }
+
+  spigot([content]).pipe(m).pipe(concat(match))
+})
+
+test("stops at meter", function (t) {
+  t.plan(3)
+
+  var chunks = 0
+
+  function match(d) {
+    t.fail()
+  }
+
+  var c = concat(match)
+
+  var m = meter(10)
+  m.on("error", function (e) {
+    t.ok(e.message, "Stream exceeded specified max of 10 bytes.")
+    // 12 because read frame is 4, so the 3rd read will put it over the max at 12 bytes
+    t.equals(c.getBody().toString(), "ABCDEFGHIJKL")
+    t.equals(m.bytes, 12)
+  })
+
+  spigot(["ABCD", "EFGH", "IJKL", "MNOP", "QRST", "UVWX", "YZ"]).pipe(m).pipe(c)
+})