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// Test importing collections represented as a single line array above the maximum document size
var tt = new ToolTest('exportimport_bigarray_test');
var exportimport_db = tt.startDB();
var src = exportimport_db.src;
var dst = exportimport_db.dst;
src.drop();
dst.drop();
// Calculate the number of documents it takes to get above 16MB (here using 20MB just to be safe)
var bigString = new Array(1025).toString();
var doc = {_id: new ObjectId(), x:bigString};
var docSize = Object.bsonsize(doc);
var numDocs = Math.floor(20*1024*1024 / docSize);
print('Size of one document: ' + docSize)
print('Number of documents to exceed maximum BSON size: ' + numDocs)
print('About to insert ' + numDocs + ' documents into ' +
exportimport_db.getName() + '.' + src.getName());
var i;
for (i = 0; i < numDocs; ++i) {
src.insert({ x : bigString });
}
var lastError = exportimport_db.getLastError();
if (lastError == null) {
print('Finished inserting ' + numDocs + ' documents');
}
else {
doassert('Insertion failed: ' + lastError);
}
data = 'data/exportimport_array_test.json';
print('About to call mongoexport on: ' + exportimport_db.getName() + '.' + src.getName() +
' with file: ' + data);
tt.runTool('export', '--out' , data, '-d', exportimport_db.getName(), '-c', src.getName(),
'--jsonArray');
print('About to call mongoimport on: ' + exportimport_db.getName() + '.' + dst.getName() +
' with file: ' + data);
tt.runTool('import', '--file', data, '-d', exportimport_db.getName(), '-c', dst.getName(),
'--jsonArray');
print('About to verify that source and destination collections match');
src_cursor = src.find().sort({ _id : 1 });
dst_cursor = dst.find().sort({ _id : 1 });
var documentCount = 0;
while (src_cursor.hasNext()) {
assert(dst_cursor.hasNext(), 'Source has more documents than destination. ' +
'Destination has ' + documentCount + ' documents.');
assert.eq(src_cursor.next(), dst_cursor.next(), 'Mismatch on document ' + documentCount);
++documentCount;
}
assert(!dst_cursor.hasNext(), 'Destination has more documents than source. ' +
'Source has ' + documentCount + ' documents.');
print('Verified that source and destination collections match');
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