blob test

test/blob.test.js

+var sqlite = require('sqlite3'),
+    Step = require('step'),
+    fs = require('fs'),
+    assert = require('assert')
+    Buffer = require('buffer').Buffer;
+
+// lots of elmo
+var elmo = fs.readFileSync(__dirname + '/support/elmo.png', 'binary');
+var elmo_str = elmo.toString('binary');
+
+exports['Blob overflow test'] = function(beforeExit) {
+    var db = new sqlite.Database('');
+    var total = 100;
+    var inserted = 0;
+    var retrieved = 0;
+
+    db.openSync(function(err) {
+        if (err) throw err;
+    });
+
+    Step(
+        function() {
+            var next = this;
+            db.prepare('CREATE TABLE elmos (image BLOB);', function(err, statement) {
+                assert.isUndefined(err);
+                statement.step(next);
+            });
+        },
+        function() {
+            var group = this.group();
+            for (var i = 0; i < total; i++) {
+                var next = group();
+                db.prepare('INSERT INTO elmos (image) VALUES (?)', function(err, statement) {
+                    assert.isUndefined(err);
+                    statement.bind(1, elmo, function() {
+                        statement.step(function(err) {
+                            assert.isUndefined(err);
+                            inserted++;
+                            next();
+                        });
+                    });
+                });
+            }
+        },
+        function() {
+            var next = this;
+            db.execute('SELECT COUNT(*) as amount FROM elmos', function(err, rows) {
+                assert.isUndefined(err);
+                assert.eql(rows[0].amount, total);
+                next();
+            });
+        },
+        function() {
+            var next = this;
+            db.prepare('SELECT image FROM elmos;', function(err, statement) {
+                assert.isUndefined(err);
+                fetch();
+
+                function fetch() {
+                    statement.step(function(err, row) {
+                        assert.isUndefined(err);
+                        if (row) {
+                            // Not using assert.equal here because it's image data
+                            // and we don't want that in the command line.
+                            assert.ok(elmo_str === row.image);
+                            retrieved++;
+                            fetch();
+                        }
+                        else {
+                            next();
+                        }
+                    });
+                }
+            });
+        }
+    );
+
+    beforeExit(function() {
+        assert.eql(inserted, total);
+        assert.eql(retrieved, total);
+    })
+}