Respect KNEX_TEST, support omitting sqlite3 from DB, and reduce outside mssql test db config (#4313)

test/integration2/transaction/set-isolation-level.spec.js

@@ -10,6 +10,14 @@ describe('Transaction', () => {
         const tableName = 'key_value';
         before(() => {
           knex = getKnexForDb(db);
+
+          if (isMssql(knex)) {
+            // Enable the snapshot isolation level required by certain transaction tests.
+            return knex.raw(
+              `ALTER DATABASE :db: SET ALLOW_SNAPSHOT_ISOLATION ON`,
+              { db: knex.context.client.config.connection.database }
+            );
+          }
         });
 
         after(() => {
@@ -46,7 +54,7 @@ describe('Transaction', () => {
           if (isSQLite(knex) || isOracle(knex)) {
             return;
           }
-          // NOTE: for mssql, it requires an alter database call that happens in docker-compose
+          // NOTE: mssql requires an alter database call to enable the snapshot isolation level.
           const isolationLevel = isMssql(knex) ? 'snapshot' : 'repeatable read';
           const trx = await knex.transaction({ isolationLevel });
           const result1 = await trx(tableName).select();

test/integration2/util/knex-instance-provider.js

@@ -1,5 +1,7 @@
 const { promisify } = require('util');
 const knex = require('../../../lib');
+const testConfig =
+  (process.env.KNEX_TEST && require(process.env.KNEX_TEST)) || {};
 
 const Db = {
   PostgresSQL: 'postgres',
@@ -52,7 +54,7 @@ const seeds = {
 const testConfigs = {
   mysql: {
     client: 'mysql',
-    connection: {
+    connection: testConfig.mysql || {
       port: 23306,
       database: 'knex_test',
       host: 'localhost',
@@ -67,7 +69,7 @@ const testConfigs = {
 
   mysql2: {
     client: 'mysql2',
-    connection: {
+    connection: testConfig.mysql || {
       port: 23306,
       database: 'knex_test',
       host: 'localhost',
@@ -82,7 +84,7 @@ const testConfigs = {
 
   postgres: {
     client: 'postgres',
-    connection: {
+    connection: testConfig.postgres || {
       adapter: 'postgresql',
       port: 25432,
       host: 'localhost',
@@ -97,7 +99,7 @@ const testConfigs = {
 
   sqlite3: {
     client: 'sqlite3',
-    connection: ':memory:',
+    connection: testConfig.sqlite3 || ':memory:',
     pool: poolSqlite,
     migrations,
     seeds,
@@ -105,7 +107,7 @@ const testConfigs = {
 
   mssql: {
     client: 'mssql',
-    connection: {
+    connection: testConfig.mssql || {
       user: 'sa',
       password: 'S0meVeryHardPassword',
       server: 'localhost',
@@ -119,7 +121,7 @@ const testConfigs = {
 
   oracledb: {
     client: 'oracledb',
-    connection: {
+    connection: testConfig.oracledb || {
       user: 'system',
       password: 'Oracle18',
       connectString: 'localhost:21521/XE',

test/unit/knex.js

@@ -366,11 +366,14 @@ describe('knex', () => {
   });
 
   describe('transaction', () => {
-    it('transaction of a copy with userParams retains userparams', async function () {
+    before(function skipSuiteIfSqliteConfigAbsent() {
+      // This is the case when the |DB| environment parameter does not include |sqlite|.
       if (!sqliteConfig) {
         return this.skip();
       }
+    });
 
+    it('transaction of a copy with userParams retains userparams', async function () {
       const knex = Knex(sqliteConfig);
 
       const knexWithParams = knex.withUserParams({ userParam: '451' });
@@ -599,10 +602,6 @@ describe('knex', () => {
     });
 
     it('creating transaction copy with user params should throw an error', async function () {
-      if (!sqliteConfig) {
-        return this.skip();
-      }
-
       const knex = Knex(sqliteConfig);
 
       await knex.transaction(async (trx) => {
@@ -639,6 +638,13 @@ describe('knex', () => {
   });
 
   describe('extend query builder', () => {
+    before(function skipSuiteIfSqliteConfigAbsent() {
+      // This is the case when the |DB| environment parameter does not include |sqlite|.
+      if (!sqliteConfig) {
+        return this.skip();
+      }
+    });
+
     let connection;
     beforeEach(() => {
       connection = new sqlite3.Database(':memory:');