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// Copyright 2008 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
var s = "test test test";
assertEquals(0, s.indexOf("t"));
assertEquals(3, s.indexOf("t", 1));
assertEquals(5, s.indexOf("t", 4));
assertEquals(1, s.indexOf("e"));
assertEquals(2, s.indexOf("s"));
assertEquals(5, s.indexOf("test", 4));
assertEquals(5, s.indexOf("test", 5));
assertEquals(10, s.indexOf("test", 6));
assertEquals(0, s.indexOf("test", 0));
assertEquals(0, s.indexOf("test", -1));
assertEquals(0, s.indexOf("test"));
assertEquals(-1, s.indexOf("notpresent"));
assertEquals(-1, s.indexOf());
for (var i = 0; i < s.length+10; i++) {
var expected = i < s.length ? i : s.length;
assertEquals(expected, s.indexOf("", i));
}
var reString = "asdf[a-z]+(asdf)?";
assertEquals(4, reString.indexOf("[a-z]+"));
assertEquals(10, reString.indexOf("(asdf)?"));
assertEquals(1, String.prototype.indexOf.length);
// Random greek letters
var twoByteString = "\u039a\u0391\u03a3\u03a3\u0395";
// Test single char pattern
assertEquals(0, twoByteString.indexOf("\u039a"), "Lamda");
assertEquals(1, twoByteString.indexOf("\u0391"), "Alpha");
assertEquals(2, twoByteString.indexOf("\u03a3"), "First Sigma");
assertEquals(3, twoByteString.indexOf("\u03a3",3), "Second Sigma");
assertEquals(4, twoByteString.indexOf("\u0395"), "Epsilon");
assertEquals(-1, twoByteString.indexOf("\u0392"), "Not beta");
// Test multi-char pattern
assertEquals(0, twoByteString.indexOf("\u039a\u0391"), "lambda Alpha");
assertEquals(1, twoByteString.indexOf("\u0391\u03a3"), "Alpha Sigma");
assertEquals(2, twoByteString.indexOf("\u03a3\u03a3"), "Sigma Sigma");
assertEquals(3, twoByteString.indexOf("\u03a3\u0395"), "Sigma Epsilon");
assertEquals(-1, twoByteString.indexOf("\u0391\u03a3\u0395"),
"Not Alpha Sigma Epsilon");
//single char pattern
assertEquals(4, twoByteString.indexOf("\u0395"));
// Test complex string indexOf algorithms. Only trigger for long strings.
// Long string that isn't a simple repeat of a shorter string.
var long = "A";
for(var i = 66; i < 76; i++) { // from 'B' to 'K'
long = long + String.fromCharCode(i) + long;
}
// pattern of 15 chars, repeated every 16 chars in long
var pattern = "ABACABADABACABA";
for(var i = 0; i < long.length - pattern.length; i+= 7) {
var index = long.indexOf(pattern, i);
assertEquals((i + 15) & ~0xf, index, "Long ABACABA...-string at index " + i);
}
assertEquals(510, long.indexOf("AJABACA"), "Long AJABACA, First J");
assertEquals(1534, long.indexOf("AJABACA", 511), "Long AJABACA, Second J");
pattern = "JABACABADABACABA";
assertEquals(511, long.indexOf(pattern), "Long JABACABA..., First J");
assertEquals(1535, long.indexOf(pattern, 512), "Long JABACABA..., Second J");
// Search for a non-ASCII string in a pure ASCII string.
var asciiString = "arglebargleglopglyfarglebargleglopglyfarglebargleglopglyf";
assertEquals(-1, asciiString.indexOf("\x2061"));
// Search in string containing many non-ASCII chars.
var allCodePoints = [];
for (var i = 0; i < 65536; i++) allCodePoints[i] = i;
var allCharsString = String.fromCharCode.apply(String, allCodePoints);
// Search for string long enough to trigger complex search with ASCII pattern
// and UC16 subject.
assertEquals(-1, allCharsString.indexOf("notfound"));
// Find substrings.
var lengths = [1, 4, 15]; // Single char, simple and complex.
var indices = [0x5, 0x65, 0x85, 0x105, 0x205, 0x285, 0x2005, 0x2085, 0xfff0];
for (var lengthIndex = 0; lengthIndex < lengths.length; lengthIndex++) {
var length = lengths[lengthIndex];
for (var i = 0; i < indices.length; i++) {
var index = indices[i];
var pattern = allCharsString.substring(index, index + length);
assertEquals(index, allCharsString.indexOf(pattern));
}
}
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