Unit tests for strip op

test/unit.js

@@ -6,5 +6,5 @@ require('./unit/cut.js');
 // require('./unit/html.js');
 // require('./unit/none.js');
 // require('./unit/replace.js');
-// require('./unit/strip.js');
+require('./unit/strip.js');
 // require('./unit/tail.js');

test/unit/strip.js

@@ -0,0 +1,64 @@
+var assert = require('assert');
+var csv = require('csv');
+var stream = require('stream');
+var _ = require('underscore');
+
+var ops = require('../../lib/operators.js');
+
+var headerStr = 'this,is,the,header,row,,,,,,,,,,,,,,,,';
+var headerRow = headerStr.split(',');
+var headerData = JSON.stringify({row: headerRow, index: 0});
+
+var out = new stream();
+
+describe('strip', function(){
+  describe('an empty row', function(){
+    var dataStr = ',,,,,,,,,,,,,,,,,,,,';
+    var row = dataStr.split(',');
+    var data = JSON.stringify({row: row, index: 1});
+
+    it('should strip the row', function(done){
+      rowCount = 0;
+      out.write = function(d) {
+        var stripDataStr = JSON.parse(d).row.join(',');
+        assert.equal(stripDataStr, headerStr);
+        rowCount++;
+      };
+
+      out.end = function(d) {
+        assert.equal(rowCount, 1);
+        done();
+      };
+
+      var strip = new ops['strip']();
+      strip.write(headerData);
+      strip.write(data);
+      strip.end();
+      strip.pipe(out);
+    });
+  });
+
+  describe('a partially-filled row', function(){
+    var dataStr = '2006/2007 - 12,81.2,163.0,244.2,77.4,143.4,220.5,5.4%,7.6%,6.8%,4.6%,4.4%,4.5%,,,,,,,,';
+    var row = dataStr.split(',');
+    var data = JSON.stringify({row: row, index: 1});
+
+    it('should *not* strip the row', function(done){
+      rowCount = 0;
+      out.write = function(d) {
+        rowCount++;
+      };
+
+      out.end = function(d) {
+        assert.equal(rowCount, 2);
+        done();
+      };
+
+      var strip = new ops['strip']();
+      strip.write(headerData);
+      strip.write(data);
+      strip.end();
+      strip.pipe(out);
+    });
+  });
+});