add cloneCollectionAsCapped command

1 files changed, 27 insertions, 0 deletions

diff --git a/jstests/capped3.js b/jstests/capped3.js
new file mode 100644
index 00000000000..7dc48559af2
--- /dev/null
+++ b/jstests/capped3.js
@@ -0,0 +1,27 @@
+t = db.jstests_capped3;
+t2 = db.jstests_capped3_clone;
+t.drop();
+t2.drop();
+for( i = 0; i < 1000; ++i ) {
+    t.save( {i:i} );
+}
+assert.commandWorked( db.runCommand( { cloneCollectionAsCapped:"jstests_capped3", toCollection:"jstests_capped3_clone", size:100000 } ) );
+c = t2.find();
+for( i = 0; i < 1000; ++i ) {
+    assert.eq( i, c.next().i );
+}
+assert( !c.hasNext() );
+
+t.drop();
+t2.drop();
+
+for( i = 0; i < 1000; ++i ) {
+    t.save( {i:i} );
+}
+assert.commandWorked( db.runCommand( { cloneCollectionAsCapped:"jstests_capped3", toCollection:"jstests_capped3_clone", size:1000 } ) );
+c = t2.find().sort( {$natural:-1} );
+i = 999;
+while( c.hasNext() ) {
+    assert.eq( i--, c.next().i );
+}
+assert( i < 990 );
\ No newline at end of file