1 files changed, 163 insertions, 0 deletions
diff --git a/jstests/dur/dropdb.js b/jstests/dur/dropdb.js
new file mode 100644
index 0000000..7f82cd7
--- /dev/null
+++ b/jstests/dur/dropdb.js
@@ -0,0 +1,163 @@
+/* durability test dropping a database
+*/
+
+var debugging = false;
+var testname = "dropdb";
+var step = 1;
+var conn = null;
+
+function checkNoJournalFiles(path, pass) {
+    var files = listFiles(path);
+    if (files.some(function (f) { return f.name.indexOf("prealloc") < 0; })) {
+        if (pass == null) {
+            // wait a bit longer for mongod to potentially finish if it is still running.
+            sleep(10000);
+            return checkNoJournalFiles(path, 1);
+        }
+        print("\n\n\n");
+        print("FAIL path:" + path);
+        print("unexpected files:");
+        printjson(files);
+        assert(false, "FAIL a journal/lsn file is present which is unexpected");
+    }
+}
+
+function runDiff(a, b) {
+    function reSlash(s) {
+        var x = s;
+        if (_isWindows()) {
+            while (1) {
+                var y = x.replace('/', '\\');
+                if (y == x)
+                    break;
+                x = y;
+            }
+        }
+        return x;
+    }
+    a = reSlash(a);
+    b = reSlash(b);
+    print("diff " + a + " " + b);
+    return run("diff", a, b);
+}
+
+function log(str) {
+    if (str)
+        print("\n" + testname + " step " + step++ + " " + str);
+    else
+        print("\n" + testname + " step " + step++);
+}
+
+// if you do inserts here, you will want to set _id.  otherwise they won't match on different 
+// runs so we can't do a binary diff of the resulting files to check they are consistent.
+function work() {
+    log("work (add data, drop database)");
+
+    var e = conn.getDB("teste");
+    e.foo.insert({ _id: 99 });
+
+    var d = conn.getDB("test");
+    d.foo.insert({ _id: 3, x: 22 });
+    d.bar.insert({ _id: 3, x: 22 });
+
+    d.dropDatabase();
+
+    d.foo.insert({ _id: 100 });
+
+    // assure writes applied in case we kill -9 on return from this function
+    assert(d.runCommand({ getlasterror: 1, fsync: 1 }).ok, "getlasterror not ok");
+}
+
+function verify() {
+    log("verify");
+    var d = conn.getDB("test");
+    var count = d.foo.count();
+    if (count != 1) {
+	print("going to fail, count mismatch in verify()");
+        sleep(10000); // easier to read the output this way
+        print("\n\n\ndropdb.js FAIL test.foo.count() should be 1 but is : " + count);
+	print(d.foo.count() + "\n\n\n");
+        assert(false);
+    }
+    assert(d.foo.findOne()._id == 100, "100");
+
+    print("dropdb.js teste.foo.findOne:");
+    printjson(conn.getDB("teste").foo.findOne());
+
+    var teste = conn.getDB("teste");
+    print("dropdb count " + teste.foo.count());
+    assert(teste.foo.findOne()._id == 99, "teste");
+
+}
+
+if (debugging) {
+    // mongod already running in debugger
+    conn = db.getMongo();
+    work();
+    verify();
+    sleep(30000);
+    quit();
+}
+
+// directories
+var path1 = "/data/db/" + testname + "nodur";
+var path2 = "/data/db/" + testname + "dur";
+
+// non-durable version
+log("mongod nodur");
+conn = startMongodEmpty("--port", 30000, "--dbpath", path1, "--nodur", "--smallfiles");
+work();
+verify();
+stopMongod(30000);
+
+// durable version
+log("mongod dur");
+conn = startMongodEmpty("--port", 30001, "--dbpath", path2, "--dur", "--smallfiles", "--durOptions", 8);
+work();
+verify();
+
+// kill the process hard
+log("kill 9");
+stopMongod(30001, /*signal*/9);
+
+// journal file should be present, and non-empty as we killed hard
+
+// we will force removal of a datafile to be sure we can recreate everything.
+removeFile(path2 + "/test.0");
+// the trick above is only valid if journals haven't rotated out, and also if lsn isn't skipping
+removeFile(path2 + "/lsn");
+
+log("restart and recover");
+conn = startMongodNoReset("--port", 30002, "--dbpath", path2, "--dur", "--smallfiles", "--durOptions", 9);
+
+log("verify after recovery");
+verify();
+
+log("stop mongod 30002");
+stopMongod(30002);
+sleep(5000);
+
+// at this point, after clean shutdown, there should be no journal files
+log("check no journal files");
+checkNoJournalFiles(path2 + "/journal");
+
+log("check data matches ns");
+var diff = runDiff(path1 + "/test.ns", path2 + "/test.ns");
+if (diff != "") {
+    print("\n\n\nDIFFERS\n");
+    print(diff);
+}
+assert(diff == "", "error test.ns files differ");
+
+log("check data matches .0");
+diff = runDiff(path1 + "/test.0", path2 + "/test.0");
+if (diff != "") {
+    print("\n\n\nDIFFERS\n");
+    print(diff);
+}
+assert(diff == "", "error test.0 files differ");
+
+log("check data matches done");
+
+print(testname + " SUCCESS");
+