init

node_modules/stream-splicer/test/push.js

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+var pipeline = require('../');
+var through = require('through2');
+var split = require('split');
+var test = require('tape');
+
+test('push', function (t) {
+    var expected = {};
+    expected.first = [ 333, 444, 555, 666, 777 ];
+    expected.second = [ 6.66, 7.77 ];
+    expected.output = [ 3.33, 4.44, 5.55, 3, 2 ];
+    
+    t.plan(5 + 2 + 5 + 3);
+    
+    var a = split();
+    var b = through.obj(function (row, enc, next) {
+        this.push(JSON.parse(row));
+        next();
+    });
+    var c = through.obj(function (row, enc, next) { this.push(row.x); next() });
+    var d = through.obj(function (x, enc, next) { this.push(x * 111); next() });
+    
+    var first = through.obj(function (row, enc, next) {
+        if (expected.first.length === 2) {
+            t.equal(p.length, 5);
+            p.push(second);
+            t.equal(p.length, 6);
+        }
+        
+        var ex = expected.first.shift();
+        t.deepEqual(row, ex);
+        
+        this.push(row / 100);
+        next();
+    });
+    var second = through.obj(function (row, enc, next) {
+        var ex = expected.second.shift();
+        t.deepEqual(row, ex);
+        this.push(Math.floor(10 - row));
+        next();
+    });
+    
+    var p = pipeline.obj([ a, b, c, d, first ]);
+    t.equal(p.length, 5);
+    
+    p.pipe(through.obj(function (row, enc, next) {
+        var ex = expected.output.shift();
+        t.deepEqual(row, ex);
+        next();
+    }));
+    
+    p.write('{"x":3}\n');
+    p.write('{"x":4}\n');
+    p.write('{"x":5}\n');
+    p.write('{"x":6}\n');
+    p.write('{"x":7}');
+    p.end();
+});