68 lines
1.9 KiB
JavaScript
68 lines
1.9 KiB
JavaScript
// SERVER-18198 check read pref is only applied when there is no $out stage
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// in aggregate shell helper
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(function() {
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"use strict";
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var t = db.server18198;
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t.drop();
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var mongo = db.getMongo();
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try {
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var commandsRan = [];
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// hook in our patched mongo
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var mockMongo = {
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getSlaveOk: function() {
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return true;
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},
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runCommand: function(db, cmd, opts) {
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commandsRan.push({db: db, cmd: cmd, opts: opts});
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return {ok: 1.0};
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},
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getReadPref: function() {
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return {mode: "secondaryPreferred"};
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},
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getReadPrefMode: function() {
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return "secondaryPreferred";
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},
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getMinWireVersion: function() {
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return mongo.getMinWireVersion();
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},
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getMaxWireVersion: function() {
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return mongo.getMaxWireVersion();
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},
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isReplicaSetMember: function() {
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return mongo.isReplicaSetMember();
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},
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isMongos: function() {
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return mongo.isMongos();
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},
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isCausalConsistency: function() {
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return false;
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},
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getClusterTime: function() {
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return mongo.getClusterTime();
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},
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};
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db._mongo = mockMongo;
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db._session = new _DummyDriverSession(mockMongo);
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// this query should not get a read pref
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t.aggregate([{$sort: {"x": 1}}, {$out: "foo"}]);
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assert.eq(commandsRan.length, 1);
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// check that it doesn't have a read preference
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assert(!commandsRan[0].cmd.hasOwnProperty("$readPreference"));
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commandsRan = [];
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t.aggregate([{$sort: {"x": 1}}]);
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// check another command was run
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assert.eq(commandsRan.length, 1);
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// check that it has a read preference
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assert(commandsRan[0].cmd.hasOwnProperty("$readPreference"));
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} finally {
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db._mongo = mongo;
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db._session = new _DummyDriverSession(mongo);
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}
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})();
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