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/**
* Tests that CWWC cannot be unset once it is set.
* @tags: [
* ]
*/
(function() {
"use strict";
function runTest(conn) {
let expectedDefaultWC = {w: "majority", wtimeout: 0};
let res = conn.adminCommand({getDefaultRWConcern: 1});
assert(res.hasOwnProperty("defaultWriteConcern"));
assert.eq(expectedDefaultWC, res.defaultWriteConcern, tojson(res));
jsTestLog("Setting the default write concern to empty initially works.");
assert.commandWorked(conn.adminCommand({
setDefaultRWConcern: 1,
defaultWriteConcern: {},
}));
res = conn.adminCommand({getDefaultRWConcern: 1});
assert(res.hasOwnProperty("defaultWriteConcern"));
assert.eq(expectedDefaultWC, res.defaultWriteConcern, tojson(res));
jsTestLog("Setting the default write concern.");
const newDefaultWriteConcern = {w: 2, wtimeout: 60};
assert.commandWorked(conn.adminCommand({
setDefaultRWConcern: 1,
defaultWriteConcern: newDefaultWriteConcern,
}));
res = conn.adminCommand({getDefaultRWConcern: 1});
assert.eq(res.defaultWriteConcern, newDefaultWriteConcern);
jsTestLog("Attempting to unset the default write concern should fail.");
assert.commandFailedWithCode(conn.adminCommand({
setDefaultRWConcern: 1,
defaultWriteConcern: {},
}),
ErrorCodes.IllegalOperation);
res = conn.adminCommand({getDefaultRWConcern: 1});
assert.eq(res.defaultWriteConcern, newDefaultWriteConcern);
}
const name = jsTestName();
const rst = new ReplSetTest({name: name, nodes: 2});
rst.startSet();
rst.initiate();
const primary = rst.getPrimary();
runTest(primary);
rst.stopSet();
const st = new ShardingTest({name: name});
const mongos = st.s;
runTest(mongos);
st.stop();
})();
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