sdk/tests/language/string/adjacent_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";

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

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

  Expect.equals(
    "a",
    "a"
        "",
  );
  Expect.equals(
    "a",
    "a"
        '',
  );
  Expect.equals(
    "a",
    "a"
        r'',
  );

  Expect.equals(
    "b",
    'b'
        "",
  );
  Expect.equals(
    "b",
    'b'
        '',
  );
  Expect.equals(
    "b",
    'b'
        r'',
  );

  Expect.equals(
    "c",
    r'c'
        "",
  );
  Expect.equals(
    "c",
    r'c'
        '',
  );
  Expect.equals(
    "c",
    r'c'
        r'',
  );

  Expect.equals(
    "a",
    ""
        "a",
  );
  Expect.equals(
    "a",
    ""
        'a',
  );
  Expect.equals(
    "a",
    ""
        r'a',
  );

  Expect.equals(
    "b",
    ''
        "b",
  );
  Expect.equals(
    "b",
    ''
        'b',
  );
  Expect.equals(
    "b",
    ''
        r'b',
  );

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

testInterpolation() {
  var s = "a";
  Expect.equals(
    r"ab",
    "$s"
        "b",
  );
  Expect.equals(
    r"ab",
    '$s'
        "b",
  );
  Expect.equals(
    r"$sb",
    r'$s'
        "b",
  );

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

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

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

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

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

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