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import { MissingEnvVarsError, parse, config } from "./mod.ts";import {  assertThrows,  assertEquals,} from "https://deno.land/std/testing/asserts.ts";
Deno.test("parser", () => {  const testDotenv = new TextDecoder("utf-8").decode(    Deno.readFileSync("./.env.test"),  );  const config = parse(testDotenv);  assertEquals(config.BASIC, "basic", "parses a basic variable");  assertEquals(config.AFTER_EMPTY, "empty", "skips empty lines");  assertEquals(config.AFTER_COMMENT, "comment", "skips lines with comments");  assertEquals(config.EMPTY_VALUE, "", "empty values are empty strings");  assertEquals(    config.QUOTED_SINGLE,    "single quoted",    "single quotes are escaped",  );  assertEquals(    config.QUOTED_DOUBLE,    "double quoted",    "double quotes are escaped",  );  assertEquals(    config.MULTILINE,    "hello\nworld",    "new lines are expanded in double quotes",  );  assertEquals(config.JSON, '{"foo": "bar"}', "inner quotes are maintained");  assertEquals(config.WHITESPACE, "whitespace", "values are trimmed");
  assertEquals(    config.MULTILINE_SINGLE_QUOTE,    "hello\\nworld",    "new lines are escaped in single quotes",  );  assertEquals(config.EQUALS, "equ==als", "handles equals inside string");
  assertEquals(    config.VAR_WITH_SPACE,    "var with space",    "variables defined with spaces are parsed",  );});
Deno.test("configure", () => {  let conf = config();  assertEquals(conf.GREETING, "hello world", "fetches .env by default");
  conf = config({ path: "./.env.test" });  assertEquals(conf.BASIC, "basic", "accepts a path to fetch env from");
  conf = config({ export: true });  assertEquals(    Deno.env.get("GREETING"),    "hello world",    "exports variables to env when requested",  );});
Deno.test("configureSafe", () => {  // Default  let conf = config({    safe: true,  });  assertEquals(conf.GREETING, "hello world", "fetches .env by default");
  // Custom .env.example  conf = config({    safe: true,    example: "./.env.example.test",  });
  assertEquals(    conf.GREETING,    "hello world",    "accepts a path to fetch env example from",  );
  // Custom .env and .env.example  conf = config({    path: "./.env.safe.test",    safe: true,    example: "./.env.example.test",  });
  assertEquals(    conf.GREETING,    "hello world",    "accepts paths to fetch env and env example from",  );
  // Throws if not all required vars are there  assertThrows(() => {    config({      path: "./.env.safe.test",      safe: true,      example: "./.env.example2.test",    });  }, MissingEnvVarsError);
  // Throws if any of the required vars is empty  assertThrows(() => {    config({      path: "./.env.safe.empty.test",      safe: true,      example: "./.env.example2.test",    });  }, MissingEnvVarsError);
  // Does not throw if any of the required vars is empty, *and* allowEmptyValues is present  config({    path: "./.env.safe.empty.test",    safe: true,    example: "./.env.example2.test",    allowEmptyValues: true,  });
  // Does not throw if any of the required vars passed externaly  Deno.env.set("ANOTHER", "VAR");  config({    path: "./.env.safe.test",    safe: true,    example: "./.env.example2.test",  });
  // Throws if any of the required vars passed externaly is empty  Deno.env.set("ANOTHER", "");  assertThrows(() => {    config({      path: "./.env.safe.test",      safe: true,      example: "./.env.example2.test",    });  });
  // Does not throw if any of the required vars passed externaly is empty, *and* allowEmptyValues is present  Deno.env.set("ANOTHER", "");  config({    path: "./.env.safe.test",    safe: true,    example: "./.env.example2.test",    allowEmptyValues: true,  });});