sdk/tests/language/string/adjacent_const_string_literals_test.dart

// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

import "package:expect/expect.dart";

class Conster {
  const Conster(this.value);

  final value;

  toString() {
    return value.toString();
  }
}

main() {
  testEmpty();
  testInterpolation();
  testMultiline();
}

testEmpty() {
  Expect.equals(
    "",
    (const Conster(
      ""
      ""
      "",
    )).toString(),
  );
  Expect.equals(
    "",
    (const Conster(
      ""
      ''
      "",
    )).toString(),
  );
  Expect.equals(
    "",
    (const Conster(
      ""
      ""
      r"",
    )).toString(),
  );

  Expect.equals(
    "a",
    (const Conster(
      "a"
      "",
    )).toString(),
  );
  Expect.equals(
    "a",
    (const Conster(
      "a"
      '',
    )).toString(),
  );
  Expect.equals(
    "a",
    (const Conster(
      "a"
      r'',
    )).toString(),
  );

  Expect.equals(
    "b",
    (const Conster(
      'b'
      "",
    )).toString(),
  );
  Expect.equals(
    "b",
    (const Conster(
      'b'
      '',
    )).toString(),
  );
  Expect.equals(
    "b",
    (const Conster(
      'b'
      r'',
    )).toString(),
  );

  Expect.equals(
    "c",
    (const Conster(
      r'c'
      "",
    )).toString(),
  );
  Expect.equals(
    "c",
    (const Conster(
      r'c'
      '',
    )).toString(),
  );
  Expect.equals(
    "c",
    (const Conster(
      r'c'
      r'',
    )).toString(),
  );

  Expect.equals(
    "a",
    (const Conster(
      ""
      "a",
    )).toString(),
  );
  Expect.equals(
    "a",
    (const Conster(
      ""
      'a',
    )).toString(),
  );
  Expect.equals(
    "a",
    (const Conster(
      ""
      r'a',
    )).toString(),
  );

  Expect.equals(
    "b",
    (const Conster(
      ''
      "b",
    )).toString(),
  );
  Expect.equals(
    "b",
    (const Conster(
      ''
      'b',
    )).toString(),
  );
  Expect.equals(
    "b",
    (const Conster(
      ''
      r'b',
    )).toString(),
  );

  Expect.equals(
    "c",
    (const Conster(
      r''
      "c",
    )).toString(),
  );
  Expect.equals(
    "c",
    (const Conster(
      r''
      'c',
    )).toString(),
  );
  Expect.equals(
    "c",
    (const Conster(
      r''
      r'c',
    )).toString(),
  );
}

const s = "a";

testInterpolation() {
  Expect.equals(
    r"ab",
    (const Conster(
      "$s"
      "b",
    )).toString(),
  );
  Expect.equals(
    r"ab",
    (const Conster(
      '$s'
      "b",
    )).toString(),
  );
  Expect.equals(
    r"$sb",
    (const Conster(
      r'$s'
      "b",
    )).toString(),
  );

  Expect.equals(
    r"-a-b",
    (const Conster(
      "-$s-"
      "b",
    )).toString(),
  );
  Expect.equals(
    r"-a-b",
    (const Conster(
      '-$s-'
      "b",
    )).toString(),
  );
  Expect.equals(
    r"-$s-b",
    (const Conster(
      r'-$s-'
      "b",
    )).toString(),
  );

  Expect.equals(
    r"ba",
    (const Conster(
      'b'
      "$s",
    )).toString(),
  );
  Expect.equals(
    r"ba",
    (const Conster(
      'b'
      '$s',
    )).toString(),
  );
  Expect.equals(
    r"b$s",
    (const Conster(
      'b'
      r'$s',
    )).toString(),
  );

  Expect.equals(
    r"b-a-",
    (const Conster(
      'b'
      "-$s-",
    )).toString(),
  );
  Expect.equals(
    r"b-a-",
    (const Conster(
      'b'
      '-$s-',
    )).toString(),
  );
  Expect.equals(
    r"b-$s-",
    (const Conster(
      'b'
      r'-$s-',
    )).toString(),
  );
}

testMultiline() {
  Expect.equals(
    "abe",
    (const Conster(
      "a"
      "b"
      "e",
    )).toString(),
  );
  Expect.equals(
    "a b e",
    (const Conster(
      "a "
      "b "
      "e",
    )).toString(),
  );
  Expect.equals(
    "a b e",
    (const Conster(
      "a"
      " b"
      " e",
    )).toString(),
  );

  Expect.equals(
    "abe",
    (const Conster(
      """
a"""
      "b"
      "e",
    )).toString(),
  );
  Expect.equals(
    "a b e",
    (const Conster(
      """
a"""
      " b"
      " e",
    )).toString(),
  );

  Expect.equals(
    "abe",
    (const Conster(
      """
a"""
      """
b"""
      """
e""",
    )).toString(),
  );
}