64 lines
2.3 KiB
JavaScript
64 lines
2.3 KiB
JavaScript
/**
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* Tests the `dryRun` option of the setFeatureCompatibilityVersion command.
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* Tests downgrading case.
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*
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* @tags: [featureFlagSetFcvDryRunMode]
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*/
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function runTest() {
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jsTestLog("Testing dryRun mode for setFeatureCompatibilityVersion command.");
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// Start a standalone MongoDB server
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const conn = MongoRunner.runMongod({});
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const adminDB = conn.getDB("admin");
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const initialFCV = latestFCV;
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jsTestLog(`Setting initial FCV to ${initialFCV}.`);
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assert.commandWorked(
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adminDB.runCommand({setFeatureCompatibilityVersion: initialFCV, confirm: true}));
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jsTestLog("CASE 1: Validate Dry-run success for downgrade from latestFCV to lastLTSFCV.");
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let res = adminDB.runCommand(
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{setFeatureCompatibilityVersion: lastLTSFCV, dryRun: true, confirm: true});
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assert.commandWorked(res, "Dry-run did not succeed.");
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checkFCV(adminDB, initialFCV); // FCV should remain unchanged post-dry-run
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jsTestLog(
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"CASE 2: Validate Dry-run success for downgrade from latestFCV to lastContinuousFCV.");
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res = adminDB.runCommand(
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{setFeatureCompatibilityVersion: lastContinuousFCV, dryRun: true, confirm: true});
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assert.commandWorked(res, "Dry-run did not succeed.");
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checkFCV(adminDB, initialFCV); // FCV should remain unchanged post-dry-run
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jsTestLog("CASE 3: Validate dry-run failure when fail point is enabled.");
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jsTestLog("Enabling fail point to simulate dry-run validation failure.");
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assert.commandWorked(adminDB.runCommand({
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configureFailPoint: "failDowngradeValidationDueToIncompatibleFeature",
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mode: "alwaysOn",
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}));
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res = adminDB.runCommand(
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{setFeatureCompatibilityVersion: lastLTSFCV, dryRun: true, confirm: true});
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jsTestLog("Validating the simulated failure response.");
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assert.commandFailedWithCode(
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res, ErrorCodes.CannotDowngrade, "Expected dry-run validation to fail.");
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checkFCV(adminDB, initialFCV); // FCV should remain unchanged post-dry-run
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jsTestLog("Disabling fail point and cleaning up.");
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assert.commandWorked(adminDB.runCommand({
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configureFailPoint: "failDowngradeValidationDueToIncompatibleFeature",
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mode: "off",
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}));
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jsTestLog("Stopping the MongoDB server.");
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MongoRunner.stopMongod(conn);
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}
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runTest();
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