Added more tests for string.match.

test/mjsunit/string-match.js

+// Copyright 2009 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.
+
+/**
+ * @fileoverview Test String.prototype.match
+ */
+
+
+function testMatch(name, input, regexp, result, captures, from, to) {
+  var matchResult = input.match(regexp);
+  assertEquals(result, matchResult, name + "-match");
+
+  var match = input.substring(from, to);
+  var preMatch = input.substring(0, from);
+  var postMatch = input.substring(to);
+  var lastParen = captures.length > 0 ? captures[captures.length - 1] : "";
+
+  if (regexp.global) {
+    // Returns array of matched strings.
+    var lastMatch = matchResult[matchResult.length - 1];
+    assertEquals(match, lastMatch, name + "-match-string_g");
+  } else {
+    // Returns array of match and captures.
+    assertEquals(match, matchResult[0], name + "-match-string");
+    assertEquals(captures.length + 1, matchResult.length, name + "-cap-return");
+    for (var i = 1; i < matchResult.length; i++) {
+      assertEquals(captures[i - 1], matchResult[i], name + "-cap-return-" + i);
+    }
+  }
+
+  assertEquals(match, RegExp["$&"], name + "-$&");
+  assertEquals(match, RegExp.lastMatch, name + "-lastMatch");
+
+  assertEquals(undefined, RegExp.$0, name + "-nocapture-10");
+  for (var i = 1; i <= 9; i++) {
+    if (i <= captures.length) {
+      assertEquals(captures[i - 1], RegExp["$" + i], name + "-capture-" + i);
+    } else {
+      assertEquals("", RegExp["$" + i], name + "-nocapture-" + i);
+    }
+  }
+  assertEquals(undefined, RegExp.$10, name + "-nocapture-10");
+
+  assertEquals(input, RegExp.input, name + "-input");
+  assertEquals(input, RegExp.$input, name + "-$input");
+  assertEquals(input, RegExp.$_, name + "-$_");
+
+  assertEquals(preMatch, RegExp["$`"], name + "-$`");
+  assertEquals(preMatch, RegExp.leftContext, name + "-leftContex");
+
+  assertEquals(postMatch, RegExp["$'"], name + "-$'");
+  assertEquals(postMatch, RegExp.rightContext, name + "-rightContex");
+
+  assertEquals(lastParen, RegExp["$+"], name + "-$+");
+  assertEquals(lastParen, RegExp.lastParen, name + "-lastParen");
+
+}
+
+
+var stringSample = "A man, a plan, a canal: Panama";
+var stringSample2 = "Argle bargle glop glyf!";
+var stringSample3 = "abcdefghijxxxxxxxxxx";
+
+
+// Non-capturing, non-global regexp.
+
+var re_nog = /\w+/;
+
+testMatch("Nonglobal", stringSample, re_nog,
+          ["A"],
+          [], 0, 1);
+
+
+re_nog.lastIndex = 2;
+
+testMatch("Nonglobal-ignore-lastIndex", stringSample, re_nog,
+          ["A"],
+          [], 0, 1);
+
+
+// Capturing non-global regexp.
+
+var re_multicap = /(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)/;
+testMatch("Capture-Nonglobal", stringSample3, re_multicap,
+          ["abcdefghij", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j"],
+          ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j"], 0, 10);
+
+
+// Global regexp (also check that capture from before are cleared)
+
+var re = /\w+/g;
+testMatch("Global", stringSample2, re,
+          ["Argle", "bargle", "glop", "glyf"], [], 18, 22);
+
+re.lastIndex = 10;
+
+testMatch("Global-ignore-lastIndex", stringSample2, re,
+          ["Argle", "bargle", "glop", "glyf"], [], 18, 22);
+
+
+// Capturing global regexp
+
+var re_cap = /\w(\w*)/g;
+
+testMatch("Capture-Global", stringSample, re_cap,
+          ["A", "man", "a", "plan", "a", "canal", "Panama"],
+          ["anama"], 24, 30);
+
+
+// Atom, non-global
+
+var re_atom = /an/;
+
+testMatch("Atom", stringSample, re_atom,
+          ["an"],
+          [], 3, 5);
+
+
+// Atom, global
+
+var re_atomg = /an/g;
+
+testMatch("Global-Atom", stringSample, re_atomg,
+          ["an", "an", "an", "an"],
+          [], 25, 27);