1 files changed, 613 insertions, 0 deletions
diff --git a/cli/tests/integration/repl_tests.rs b/cli/tests/integration/repl_tests.rs
new file mode 100644
index 000000000..00be42ac3
--- /dev/null
+++ b/cli/tests/integration/repl_tests.rs
@@ -0,0 +1,613 @@
+// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
+
+use test_util as util;
+
+#[cfg(unix)]
+#[test]
+fn pty_multiline() {
+  use std::io::{Read, Write};
+  use util::pty::fork::*;
+  let deno_exe = util::deno_exe_path();
+  let fork = Fork::from_ptmx().unwrap();
+  if let Ok(mut master) = fork.is_parent() {
+    master.write_all(b"(\n1 + 2\n)\n").unwrap();
+    master.write_all(b"{\nfoo: \"foo\"\n}\n").unwrap();
+    master.write_all(b"`\nfoo\n`\n").unwrap();
+    master.write_all(b"`\n\\`\n`\n").unwrap();
+    master.write_all(b"'{'\n").unwrap();
+    master.write_all(b"'('\n").unwrap();
+    master.write_all(b"'['\n").unwrap();
+    master.write_all(b"/{/'\n").unwrap();
+    master.write_all(b"/(/'\n").unwrap();
+    master.write_all(b"/[/'\n").unwrap();
+    master.write_all(b"console.log(\"{test1} abc {test2} def {{test3}}\".match(/{([^{].+?)}/));\n").unwrap();
+    master.write_all(b"close();\n").unwrap();
+
+    let mut output = String::new();
+    master.read_to_string(&mut output).unwrap();
+
+    assert!(output.contains('3'));
+    assert!(output.contains("{ foo: \"foo\" }"));
+    assert!(output.contains("\"\\nfoo\\n\""));
+    assert!(output.contains("\"\\n`\\n\""));
+    assert!(output.contains("\"{\""));
+    assert!(output.contains("\"(\""));
+    assert!(output.contains("\"[\""));
+    assert!(output.contains("/{/"));
+    assert!(output.contains("/(/"));
+    assert!(output.contains("/{/"));
+    assert!(output.contains("[ \"{test1}\", \"test1\" ]"));
+
+    fork.wait().unwrap();
+  } else {
+    std::env::set_var("NO_COLOR", "1");
+    let err = exec::Command::new(deno_exe).arg("repl").exec();
+    println!("err {}", err);
+    unreachable!()
+  }
+}
+
+#[cfg(unix)]
+#[test]
+fn pty_unpaired_braces() {
+  use std::io::{Read, Write};
+  use util::pty::fork::*;
+  let deno_exe = util::deno_exe_path();
+  let fork = Fork::from_ptmx().unwrap();
+  if let Ok(mut master) = fork.is_parent() {
+    master.write_all(b")\n").unwrap();
+    master.write_all(b"]\n").unwrap();
+    master.write_all(b"}\n").unwrap();
+    master.write_all(b"close();\n").unwrap();
+
+    let mut output = String::new();
+    master.read_to_string(&mut output).unwrap();
+
+    assert!(output.contains("Unexpected token `)`"));
+    assert!(output.contains("Unexpected token `]`"));
+    assert!(output.contains("Unexpected token `}`"));
+
+    fork.wait().unwrap();
+  } else {
+    std::env::set_var("NO_COLOR", "1");
+    let err = exec::Command::new(deno_exe).arg("repl").exec();
+    println!("err {}", err);
+    unreachable!()
+  }
+}
+
+#[cfg(unix)]
+#[test]
+fn pty_bad_input() {
+  use std::io::{Read, Write};
+  use util::pty::fork::*;
+  let deno_exe = util::deno_exe_path();
+  let fork = Fork::from_ptmx().unwrap();
+  if let Ok(mut master) = fork.is_parent() {
+    master.write_all(b"'\\u{1f3b5}'[0]\n").unwrap();
+    master.write_all(b"close();\n").unwrap();
+
+    let mut output = String::new();
+    master.read_to_string(&mut output).unwrap();
+
+    assert!(output.contains("Unterminated string literal"));
+
+    fork.wait().unwrap();
+  } else {
+    std::env::set_var("NO_COLOR", "1");
+    let err = exec::Command::new(deno_exe).arg("repl").exec();
+    println!("err {}", err);
+    unreachable!()
+  }
+}
+
+#[cfg(unix)]
+#[test]
+fn pty_complete_symbol() {
+  use std::io::{Read, Write};
+  use util::pty::fork::*;
+  let deno_exe = util::deno_exe_path();
+  let fork = Fork::from_ptmx().unwrap();
+  if let Ok(mut master) = fork.is_parent() {
+    master.write_all(b"Symbol.it\t\n").unwrap();
+    master.write_all(b"close();\n").unwrap();
+
+    let mut output = String::new();
+    master.read_to_string(&mut output).unwrap();
+
+    assert!(output.contains("Symbol(Symbol.iterator)"));
+
+    fork.wait().unwrap();
+  } else {
+    std::env::set_var("NO_COLOR", "1");
+    let err = exec::Command::new(deno_exe).arg("repl").exec();
+    println!("err {}", err);
+    unreachable!()
+  }
+}
+
+#[cfg(unix)]
+#[test]
+fn pty_complete_declarations() {
+  use std::io::{Read, Write};
+  use util::pty::fork::*;
+  let deno_exe = util::deno_exe_path();
+  let fork = Fork::from_ptmx().unwrap();
+  if let Ok(mut master) = fork.is_parent() {
+    master.write_all(b"class MyClass {}\n").unwrap();
+    master.write_all(b"My\t\n").unwrap();
+    master.write_all(b"let myVar;\n").unwrap();
+    master.write_all(b"myV\t\n").unwrap();
+    master.write_all(b"close();\n").unwrap();
+
+    let mut output = String::new();
+    master.read_to_string(&mut output).unwrap();
+
+    assert!(output.contains("> MyClass"));
+    assert!(output.contains("> myVar"));
+
+    fork.wait().unwrap();
+  } else {
+    std::env::set_var("NO_COLOR", "1");
+    let err = exec::Command::new(deno_exe).arg("repl").exec();
+    println!("err {}", err);
+    unreachable!()
+  }
+}
+
+#[cfg(unix)]
+#[test]
+fn pty_ignore_symbols() {
+  use std::io::{Read, Write};
+  use util::pty::fork::*;
+  let deno_exe = util::deno_exe_path();
+  let fork = Fork::from_ptmx().unwrap();
+  if let Ok(mut master) = fork.is_parent() {
+    master.write_all(b"Array.Symbol\t\n").unwrap();
+    master.write_all(b"close();\n").unwrap();
+
+    let mut output = String::new();
+    master.read_to_string(&mut output).unwrap();
+
+    assert!(output.contains("undefined"));
+    assert!(
+      !output.contains("Uncaught TypeError: Array.Symbol is not a function")
+    );
+
+    fork.wait().unwrap();
+  } else {
+    std::env::set_var("NO_COLOR", "1");
+    let err = exec::Command::new(deno_exe).arg("repl").exec();
+    println!("err {}", err);
+    unreachable!()
+  }
+}
+
+#[test]
+fn console_log() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["console.log('hello')", "'world'"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.ends_with("hello\nundefined\n\"world\"\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn object_literal() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["{}", "{ foo: 'bar' }"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.ends_with("{}\n{ foo: \"bar\" }\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn block_expression() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["{};", "{\"\"}"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.ends_with("undefined\n\"\"\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn await_resolve() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["await Promise.resolve('done')"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.ends_with("\"done\"\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn await_timeout() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["await new Promise((r) => setTimeout(r, 0, 'done'))"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.ends_with("\"done\"\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn let_redeclaration() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["let foo = 0;", "foo", "let foo = 1;", "foo"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.ends_with("undefined\n0\nundefined\n1\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn repl_cwd() {
+  let (_out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["Deno.cwd()"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(err.is_empty());
+}
+
+#[test]
+fn typescript() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec![
+      "function add(a: number, b: number) { return a + b }",
+      "const result: number = add(1, 2) as number;",
+      "result",
+    ]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.ends_with("undefined\nundefined\n3\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn typescript_declarations() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec![
+      "namespace Test { export enum Values { A, B, C } }",
+      "Test.Values.A",
+      "Test.Values.C",
+      "interface MyInterface { prop: string; }",
+      "type MyTypeAlias = string;",
+    ]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.ends_with("undefined\n0\n2\nundefined\nundefined\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn typescript_decorators() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec![
+      "function dec(target) { target.prototype.test = () => 2; }",
+      "@dec class Test {}",
+      "new Test().test()",
+    ]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.ends_with("undefined\nundefined\n2\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn eof() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["1 + 2"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.ends_with("3\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn strict() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec![
+      "let a = {};",
+      "Object.preventExtensions(a);",
+      "a.c = 1;",
+    ]),
+    None,
+    false,
+  );
+  assert!(out.contains(
+    "Uncaught TypeError: Cannot add property c, object is not extensible"
+  ));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn close_command() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["close()", "'ignored'"]),
+    None,
+    false,
+  );
+
+  assert!(!out.contains("ignored"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn function() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["Deno.writeFileSync"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.ends_with("[Function: writeFileSync]\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+#[ignore]
+fn multiline() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["(\n1 + 2\n)"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.ends_with("3\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn import() {
+  let (out, _) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["import('./subdir/auto_print_hello.ts')"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.contains("hello!\n"));
+}
+
+#[test]
+fn import_declarations() {
+  let (out, _) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["import './subdir/auto_print_hello.ts';"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.contains("hello!\n"));
+}
+
+#[test]
+fn eval_unterminated() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["eval('{')"]),
+    None,
+    false,
+  );
+  assert!(out.contains("Unexpected end of input"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn unpaired_braces() {
+  for right_brace in &[")", "]", "}"] {
+    let (out, err) = util::run_and_collect_output(
+      true,
+      "repl",
+      Some(vec![right_brace]),
+      None,
+      false,
+    );
+    assert!(out.contains("Unexpected token"));
+    assert!(err.is_empty());
+  }
+}
+
+#[test]
+fn reference_error() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["not_a_variable"]),
+    None,
+    false,
+  );
+  assert!(out.contains("not_a_variable is not defined"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn syntax_error() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec![
+      "syntax error",
+      "2", // ensure it keeps accepting input after
+    ]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.ends_with("parse error: Expected ';', '}' or <eof> at 1:7\n2\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn syntax_error_jsx() {
+  // JSX is not supported in the REPL
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["const element = <div />;"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.contains("Unexpected token `>`"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn type_error() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["console()"]),
+    None,
+    false,
+  );
+  assert!(out.contains("console is not a function"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn variable() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["var a = 123;", "a"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.ends_with("undefined\n123\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn lexical_scoped_variable() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["let a = 123;", "a"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.ends_with("undefined\n123\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn missing_deno_dir() {
+  use std::fs::{read_dir, remove_dir_all};
+  const DENO_DIR: &str = "nonexistent";
+  let test_deno_dir =
+    util::root_path().join("cli").join("tests").join(DENO_DIR);
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["1"]),
+    Some(vec![
+      ("DENO_DIR".to_owned(), DENO_DIR.to_owned()),
+      ("NO_COLOR".to_owned(), "1".to_owned()),
+    ]),
+    false,
+  );
+  assert!(read_dir(&test_deno_dir).is_ok());
+  remove_dir_all(&test_deno_dir).unwrap();
+  assert!(out.ends_with("1\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn save_last_eval() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["1", "_"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.ends_with("1\n1\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn save_last_thrown() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["throw 1", "_error"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(out.ends_with("Uncaught 1\n1\n"));
+  assert!(err.is_empty());
+}
+
+#[test]
+fn assign_underscore() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["_ = 1", "2", "_"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  assert!(
+    out.ends_with("Last evaluation result is no longer saved to _.\n1\n2\n1\n")
+  );
+  assert!(err.is_empty());
+}
+
+#[test]
+fn assign_underscore_error() {
+  let (out, err) = util::run_and_collect_output(
+    true,
+    "repl",
+    Some(vec!["_error = 1", "throw 2", "_error"]),
+    Some(vec![("NO_COLOR".to_owned(), "1".to_owned())]),
+    false,
+  );
+  println!("{}", out);
+  assert!(out.ends_with(
+    "Last thrown error is no longer saved to _error.\n1\nUncaught 2\n1\n"
+  ));
+  assert!(err.is_empty());
+}