/**
 * Tests that MongoDB gives errors when certain data files are corrupted.
 *
 * @tags: [requires_wiredtiger]
 */

(function() {

load('jstests/disk/libs/wt_file_helper.js');

const baseName = "wt_corrupt_file_errors";
const collName = "test";
const dbpath = MongoRunner.dataPath + baseName + "/";

/**
 * Test 1. Corrupt a collection's .wt file.
 */

assertErrorOnRequestWhenFilesAreCorruptOrMissing(
    dbpath,
    baseName,
    collName,
    (mongod, testColl) => {
        const testCollUri = getUriForColl(testColl);
        const testCollFile = dbpath + testCollUri + ".wt";
        MongoRunner.stopMongod(mongod);
        jsTestLog("corrupting collection file: " + testCollFile);
        corruptFile(testCollFile);
    },
    (testColl) => {
        assert.throws(() => {
            testColl.insert({a: 1});
        });
    },
    new RegExp("Fatal assertion.*50882"));

/**
 * Test 2. Corrupt the _mdb_catalog.
 */

assertErrorOnStartupWhenFilesAreCorruptOrMissing(dbpath, baseName, collName, (mongod, testColl) => {
    MongoRunner.stopMongod(mongod);
    const mdbCatalogFile = dbpath + "_mdb_catalog.wt";
    jsTestLog("corrupting catalog file: " + mdbCatalogFile);
    corruptFile(mdbCatalogFile);
}, new RegExp("Fatal assertion.*50882"));

/**
 * Test 3. Corrupt the WiredTiger.wt.
 */

assertErrorOnStartupWhenFilesAreCorruptOrMissing(dbpath, baseName, collName, (mongod, testColl) => {
    MongoRunner.stopMongod(mongod);
    const WiredTigerWTFile = dbpath + "WiredTiger.wt";
    jsTestLog("corrupting WiredTiger.wt");
    corruptFile(WiredTigerWTFile);
}, new RegExp("Fatal assertion.*50944"));

/**
 * Test 4. Corrupt an index file.
 */

assertErrorOnRequestWhenFilesAreCorruptOrMissing(
    dbpath,
    baseName,
    collName,
    (mongod, testColl) => {
        const indexName = "a_1";
        assert.commandWorked(testColl.createIndex({a: 1}, {name: indexName}));
        const indexUri = getUriForIndex(testColl, indexName);
        MongoRunner.stopMongod(mongod);
        const indexFile = dbpath + indexUri + ".wt";
        jsTestLog("corrupting index file: " + indexFile);
        corruptFile(indexFile);
    },
    (testColl) => {
        // This insert will crash the server because it triggers the code path
        // of looking for the index file.
        assert.throws(function() {
            testColl.insert({a: 1});
        });
    },
    new RegExp("Fatal assertion.*50882"));
})();