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const { test } = Deno;import { assertEquals, assertStrContains } from "../test_deps.ts";import { ConnectionParams } from "../connection_params.ts";
test(async function dsnStyleParameters() {  const p = new ConnectionParams(    "postgres://some_user@some_host:10101/deno_postgres",  );
  assertEquals(p.database, "deno_postgres");  assertEquals(p.user, "some_user");  assertEquals(p.host, "some_host");  assertEquals(p.port, "10101");});
test(async function objectStyleParameters() {  const p = new ConnectionParams({    user: "some_user",    host: "some_host",    port: "10101",    database: "deno_postgres",  });
  assertEquals(p.database, "deno_postgres");  assertEquals(p.user, "some_user");  assertEquals(p.host, "some_host");  assertEquals(p.port, "10101");});
// TODO: add test when env is not allowedtest(async function envParameters() {  const currentEnv = Deno.env();
  currentEnv.PGUSER = "some_user";  currentEnv.PGHOST = "some_host";  currentEnv.PGPORT = "10101";  currentEnv.PGDATABASE = "deno_postgres";
  const p = new ConnectionParams();  assertEquals(p.database, "deno_postgres");  assertEquals(p.user, "some_user");  assertEquals(p.host, "some_host");  assertEquals(p.port, "10101");
  // clear out env  currentEnv.PGUSER = "";  currentEnv.PGHOST = "";  currentEnv.PGPORT = "";  currentEnv.PGDATABASE = "";});
test(async function defaultParameters() {  const p = new ConnectionParams({    database: "deno_postgres",    user: "deno_postgres",  });  assertEquals(p.database, "deno_postgres");  assertEquals(p.user, "deno_postgres");  assertEquals(p.host, "127.0.0.1");  assertEquals(p.port, "5432");  assertEquals(p.password, undefined);});
test(async function requiredParameters() {  let thrown = false;
  try {    new ConnectionParams();  } catch (e) {    thrown = true;    assertEquals(e.name, "ConnectionParamsError");    assertStrContains(      e.message,      "Missing connection parameters: database, user",    );  }  assertEquals(thrown, true);});