simplify streams, lint docs

stream/tests/test-scanMerge.js

@@ -0,0 +1,43 @@
+"use strict"
+
+var o = require("../../ospec/ospec")
+var stream = require("../stream")
+var scanMerge = require("../scanMerge")
+
+o.spec("scanMerge", function() {
+	o("defaults to seed", function() {
+		var parent1 = stream()
+		var parent2 = stream()
+
+		var child = scanMerge([
+			[parent1, function(out, p1) {
+				return out + p1
+			}],
+			[parent2, function(out, p2) {
+				return out + p2
+			}]
+		], -10)
+
+		o(child()).equals(-10)
+	})
+
+	o("accumulates as expected", function() {
+		var parent1 = stream()
+		var parent2 = stream()
+
+		var child = scanMerge([
+			[parent1, function(out, p1) {
+				return out + p1
+			}],
+			[parent2, function(out, p2) {
+				return out + p2 + p2
+			}]
+		], "a")
+
+		parent1("b")
+		parent2("c")
+		parent1("b")
+
+		o(child()).equals("abccb")
+	})
+})