chore: fix pg-pool test env (open-telemetry#706)

Author: xiao-lix

packages/opentelemetry-plugin-postgres/opentelemetry-plugin-pg-pool/package.json

@@ -54,6 +54,7 @@
     "@types/pg-pool": "^2.0.1",
     "@types/shimmer": "^1.0.1",
     "codecov": "^3.6.1",
+    "cross-env": "^6.0.0",
     "gts": "^1.1.0",
     "mocha": "^6.2.0",
     "nyc": "^14.1.1",

packages/opentelemetry-plugin-postgres/opentelemetry-plugin-pg-pool/test/pg-pool.test.ts

@@ -94,8 +94,8 @@ describe('pg-pool@2.x', () => {
   let pool: pgPool<pg.Client>;
   const registry = new NodeTracerRegistry();
   const logger = new NoopLogger();
-  const testPostgres = process.env.TEST_POSTGRES; // For CI: assumes local postgres db is already available
-  const testPostgresLocally = process.env.TEST_POSTGRES_LOCAL; // For local: spins up local postgres db via docker
+  const testPostgres = process.env.RUN_POSTGRES_TESTS; // For CI: assumes local postgres db is already available
+  const testPostgresLocally = process.env.RUN_POSTGRES_TESTS_LOCAL; // For local: spins up local postgres db via docker
   const shouldTest = testPostgres || testPostgresLocally; // Skips these tests if false (default)
 
   before(function(done) {
@@ -192,10 +192,10 @@ describe('pg-pool@2.x', () => {
           if (!client) {
             throw new Error('No client received');
           }
-          release();
           assert.ok(client);
           runCallbackTest(parentSpan, pgPoolattributes, events, okStatus, 1, 0);
           client.query('SELECT NOW()', (err, ret) => {
+            release();
             if (err) {
               return done(err);
             }