1// Copyright 2008 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6//     * Redistributions of source code must retain the above copyright
7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
9//       copyright notice, this list of conditions and the following
10//       disclaimer in the documentation and/or other materials provided
11//       with the distribution.
12//     * Neither the name of Google Inc. nor the names of its
13//       contributors may be used to endorse or promote products derived
14//       from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28// ----------------------------------------------------------------------
29// toString
30assertEquals("NaN", (NaN).toString());
31assertEquals("Infinity", (1/0).toString());
32assertEquals("-Infinity", (-1/0).toString());
33assertEquals("0", (0).toString());
34assertEquals("9", (9).toString());
35assertEquals("90", (90).toString());
36assertEquals("90.12", (90.12).toString());
37assertEquals("0.1", (0.1).toString());
38assertEquals("0.01", (0.01).toString());
39assertEquals("0.0123", (0.0123).toString());
40assertEquals("111111111111111110000", (111111111111111111111).toString());
41assertEquals("1.1111111111111111e+21", (1111111111111111111111).toString());
42assertEquals("1.1111111111111111e+22", (11111111111111111111111).toString());
43assertEquals("0.00001", (0.00001).toString());
44assertEquals("0.000001", (0.000001).toString());
45assertEquals("1e-7", (0.0000001).toString());
46assertEquals("1.2e-7", (0.00000012).toString());
47assertEquals("1.23e-7", (0.000000123).toString());
48assertEquals("1e-8", (0.00000001).toString());
49assertEquals("1.2e-8", (0.000000012).toString());
50assertEquals("1.23e-8", (0.0000000123).toString());
51
52assertEquals("0", (-0).toString());
53assertEquals("-9", (-9).toString());
54assertEquals("-90", (-90).toString());
55assertEquals("-90.12", (-90.12).toString());
56assertEquals("-0.1", (-0.1).toString());
57assertEquals("-0.01", (-0.01).toString());
58assertEquals("-0.0123", (-0.0123).toString());
59assertEquals("-111111111111111110000", (-111111111111111111111).toString());
60assertEquals("-1.1111111111111111e+21", (-1111111111111111111111).toString());
61assertEquals("-1.1111111111111111e+22", (-11111111111111111111111).toString());
62assertEquals("-0.00001", (-0.00001).toString());
63assertEquals("-0.000001", (-0.000001).toString());
64assertEquals("-1e-7", (-0.0000001).toString());
65assertEquals("-1.2e-7", (-0.00000012).toString());
66assertEquals("-1.23e-7", (-0.000000123).toString());
67assertEquals("-1e-8", (-0.00000001).toString());
68assertEquals("-1.2e-8", (-0.000000012).toString());
69assertEquals("-1.23e-8", (-0.0000000123).toString());
70
71assertEquals("NaN", (NaN).toString(16));
72assertEquals("Infinity", (1/0).toString(16));
73assertEquals("-Infinity", (-1/0).toString(16));
74assertEquals("0", (0).toString(16));
75assertEquals("9", (9).toString(16));
76assertEquals("5a", (90).toString(16));
77assertEquals("5a.1eb851eb852", (90.12).toString(16));
78assertEquals("0.1999999999999a", (0.1).toString(16));
79assertEquals("0.028f5c28f5c28f6", (0.01).toString(16));
80assertEquals("0.032617c1bda511a", (0.0123).toString(16));
81assertEquals("605f9f6dd18bc8000", (111111111111111111111).toString(16));
82assertEquals("3c3bc3a4a2f75c0000", (1111111111111111111111).toString(16));
83assertEquals("25a55a46e5da9a00000", (11111111111111111111111).toString(16));
84assertEquals("0.0000a7c5ac471b4788", (0.00001).toString(16));
85assertEquals("0.000010c6f7a0b5ed8d", (0.000001).toString(16));
86assertEquals("0.000001ad7f29abcaf48", (0.0000001).toString(16));
87assertEquals("0.000002036565348d256", (0.00000012).toString(16));
88assertEquals("0.0000021047ee22aa466", (0.000000123).toString(16));
89assertEquals("0.0000002af31dc4611874", (0.00000001).toString(16));
90assertEquals("0.000000338a23b87483be", (0.000000012).toString(16));
91assertEquals("0.00000034d3fe36aaa0a2", (0.0000000123).toString(16));
92
93assertEquals("0", (-0).toString(16));
94assertEquals("-9", (-9).toString(16));
95assertEquals("-5a", (-90).toString(16));
96assertEquals("-5a.1eb851eb852", (-90.12).toString(16));
97assertEquals("-0.1999999999999a", (-0.1).toString(16));
98assertEquals("-0.028f5c28f5c28f6", (-0.01).toString(16));
99assertEquals("-0.032617c1bda511a", (-0.0123).toString(16));
100assertEquals("-605f9f6dd18bc8000", (-111111111111111111111).toString(16));
101assertEquals("-3c3bc3a4a2f75c0000", (-1111111111111111111111).toString(16));
102assertEquals("-25a55a46e5da9a00000", (-11111111111111111111111).toString(16));
103assertEquals("-0.0000a7c5ac471b4788", (-0.00001).toString(16));
104assertEquals("-0.000010c6f7a0b5ed8d", (-0.000001).toString(16));
105assertEquals("-0.000001ad7f29abcaf48", (-0.0000001).toString(16));
106assertEquals("-0.000002036565348d256", (-0.00000012).toString(16));
107assertEquals("-0.0000021047ee22aa466", (-0.000000123).toString(16));
108assertEquals("-0.0000002af31dc4611874", (-0.00000001).toString(16));
109assertEquals("-0.000000338a23b87483be", (-0.000000012).toString(16));
110assertEquals("-0.00000034d3fe36aaa0a2", (-0.0000000123).toString(16));
111
112assertEquals("4294967296", Math.pow(2,32).toString());
113assertEquals("ffffffff", (Math.pow(2,32)-1).toString(16));
114assertEquals("11111111111111111111111111111111", (Math.pow(2,32)-1).toString(2));
115assertEquals("5yc1z", (10000007).toString(36));
116assertEquals("0", (0).toString(36));
117assertEquals("0", (0).toString(16));
118assertEquals("0", (0).toString(10));
119assertEquals("0", (0).toString(8));
120assertEquals("0", (0).toString(2));
121assertEquals("100000000000000000000000000000000", Math.pow(2,32).toString(2));
122assertEquals("100000000000000000000000000000001", (Math.pow(2,32) + 1).toString(2));
123assertEquals("100000000000080", (0x100000000000081).toString(16));
124assertEquals("1000000000000100", (-(-'0x1000000000000081')).toString(16));
125assertEquals("1000000000000000", (-(-'0x1000000000000080')).toString(16));
126assertEquals("1000000000000000", (-(-'0x100000000000007F')).toString(16));
127assertEquals("100000000000000000000000000000000000000000000000010000000", (0x100000000000081).toString(2));
128assertEquals("-11111111111111111111111111111111", (-(Math.pow(2,32)-1)).toString(2));
129assertEquals("-5yc1z", (-10000007).toString(36));
130assertEquals("-100000000000000000000000000000000", (-Math.pow(2,32)).toString(2));
131assertEquals("-100000000000000000000000000000001", (-(Math.pow(2,32) + 1)).toString(2));
132assertEquals("-100000000000080", (-0x100000000000081).toString(16));
133assertEquals("-100000000000000000000000000000000000000000000000010000000", (-0x100000000000081).toString(2));
134assertEquals("1000", (1000).toString());
135assertEquals("0.00001", (0.00001).toString());
136assertEquals("1000000000000000100", (1000000000000000128).toString());
137assertEquals("1e+21", (1000000000000000012800).toString());
138assertEquals("-1e+21", (-1000000000000000012800).toString());
139assertEquals("1e-7", (0.0000001).toString());
140assertEquals("-1e-7", (-0.0000001).toString());
141assertEquals("1.0000000000000001e+21", (1000000000000000128000).toString());
142assertEquals("0.000001", (0.000001).toString());
143assertEquals("1e-7", (0.0000001).toString());
144assertEquals("8.8", (8.5).toString(16));
145assertEquals("-8.8", (-8.5).toString(16));
146
147// ----------------------------------------------------------------------
148// toFixed
149assertEquals("NaN", (NaN).toFixed(2));
150assertEquals("Infinity", (1/0).toFixed(2));
151assertEquals("-Infinity", (-1/0).toFixed(2));
152
153assertEquals("1.1111111111111111e+21", (1111111111111111111111).toFixed(8));
154assertEquals("0.1", (0.1).toFixed(1));
155assertEquals("0.10", (0.1).toFixed(2));
156assertEquals("0.100", (0.1).toFixed(3));
157assertEquals("0.01", (0.01).toFixed(2));
158assertEquals("0.010", (0.01).toFixed(3));
159assertEquals("0.0100", (0.01).toFixed(4));
160assertEquals("0.00", (0.001).toFixed(2));
161assertEquals("0.001", (0.001).toFixed(3));
162assertEquals("0.0010", (0.001).toFixed(4));
163assertEquals("1.0000", (1).toFixed(4));
164assertEquals("1.0", (1).toFixed(1));
165assertEquals("1", (1).toFixed(0));
166assertEquals("12", (12).toFixed(0));
167assertEquals("1", (1.1).toFixed(0));
168assertEquals("12", (12.1).toFixed(0));
169assertEquals("1", (1.12).toFixed(0));
170assertEquals("12", (12.12).toFixed(0));
171assertEquals("0.0000006", (0.0000006).toFixed(7));
172assertEquals("0.00000006", (0.00000006).toFixed(8));
173assertEquals("0.000000060", (0.00000006).toFixed(9));
174assertEquals("0.0000000600", (0.00000006).toFixed(10));
175assertEquals("0", (0).toFixed(0));
176assertEquals("0.0", (0).toFixed(1));
177assertEquals("0.00", (0).toFixed(2));
178
179assertEquals("-1.1111111111111111e+21", (-1111111111111111111111).toFixed(8));
180assertEquals("-0.1", (-0.1).toFixed(1));
181assertEquals("-0.10", (-0.1).toFixed(2));
182assertEquals("-0.100", (-0.1).toFixed(3));
183assertEquals("-0.01", (-0.01).toFixed(2));
184assertEquals("-0.010", (-0.01).toFixed(3));
185assertEquals("-0.0100", (-0.01).toFixed(4));
186assertEquals("-0.00", (-0.001).toFixed(2));
187assertEquals("-0.001", (-0.001).toFixed(3));
188assertEquals("-0.0010", (-0.001).toFixed(4));
189assertEquals("-1.0000", (-1).toFixed(4));
190assertEquals("-1.0", (-1).toFixed(1));
191assertEquals("-1", (-1).toFixed(0));
192assertEquals("-1", (-1.1).toFixed(0));
193assertEquals("-12", (-12.1).toFixed(0));
194assertEquals("-1", (-1.12).toFixed(0));
195assertEquals("-12", (-12.12).toFixed(0));
196assertEquals("-0.0000006", (-0.0000006).toFixed(7));
197assertEquals("-0.00000006", (-0.00000006).toFixed(8));
198assertEquals("-0.000000060", (-0.00000006).toFixed(9));
199assertEquals("-0.0000000600", (-0.00000006).toFixed(10));
200assertEquals("0", (-0).toFixed(0));
201assertEquals("0.0", (-0).toFixed(1));
202assertEquals("0.00", (-0).toFixed(2));
203
204assertEquals("1000", (1000).toFixed());
205assertEquals("0", (0.00001).toFixed());
206assertEquals("0.00001", (0.00001).toFixed(5));
207assertEquals("0.00000000000000000010", (0.0000000000000000001).toFixed(20));
208assertEquals("0.00001000000000000", (0.00001).toFixed(17));
209assertEquals("1.00000000000000000", (1).toFixed(17));
210assertEquals("1000000000000000128", (1000000000000000128).toFixed());
211assertEquals("100000000000000128.0", (100000000000000128).toFixed(1));
212assertEquals("10000000000000128.00", (10000000000000128).toFixed(2));
213assertEquals("10000000000000128.00000000000000000000", (10000000000000128).toFixed(20));
214assertEquals("0", (0).toFixed());
215assertEquals("-42.000", ((-42).toFixed(3)));
216assertEquals("-1000000000000000128", (-1000000000000000128).toFixed());
217assertEquals("-0.00000000000000000010", (-0.0000000000000000001).toFixed(20));
218assertEquals("0.12312312312312299889", (0.123123123123123).toFixed(20));
219// Test that we round up even when the last digit generated is even.
220// dtoa does not do this in its original form.
221assertEquals("1", 0.5.toFixed(0), "0.5.toFixed(0)");
222assertEquals("-1", (-0.5).toFixed(0), "(-0.5).toFixed(0)");
223assertEquals("1.3", 1.25.toFixed(1), "1.25.toFixed(1)");
224// This is bizare, but Spidermonkey and KJS behave the same.
225assertEquals("234.2040", (234.20405).toFixed(4), "234.2040.toFixed(4)");
226assertEquals("234.2041", (234.2040506).toFixed(4));
227
228// ----------------------------------------------------------------------
229// toExponential
230assertEquals("1e+0", (1).toExponential());
231assertEquals("1.1e+1", (11).toExponential());
232assertEquals("1.12e+2", (112).toExponential());
233assertEquals("1e+0", (1).toExponential(0));
234assertEquals("1e+1", (11).toExponential(0));
235assertEquals("1e+2", (112).toExponential(0));
236assertEquals("1.0e+0", (1).toExponential(1));
237assertEquals("1.1e+1", (11).toExponential(1));
238assertEquals("1.1e+2", (112).toExponential(1));
239assertEquals("1.00e+0", (1).toExponential(2));
240assertEquals("1.10e+1", (11).toExponential(2));
241assertEquals("1.12e+2", (112).toExponential(2));
242assertEquals("1.000e+0", (1).toExponential(3));
243assertEquals("1.100e+1", (11).toExponential(3));
244assertEquals("1.120e+2", (112).toExponential(3));
245assertEquals("1e-1", (0.1).toExponential());
246assertEquals("1.1e-1", (0.11).toExponential());
247assertEquals("1.12e-1", (0.112).toExponential());
248assertEquals("1e-1", (0.1).toExponential(0));
249assertEquals("1e-1", (0.11).toExponential(0));
250assertEquals("1e-1", (0.112).toExponential(0));
251assertEquals("1.0e-1", (0.1).toExponential(1));
252assertEquals("1.1e-1", (0.11).toExponential(1));
253assertEquals("1.1e-1", (0.112).toExponential(1));
254assertEquals("1.00e-1", (0.1).toExponential(2));
255assertEquals("1.10e-1", (0.11).toExponential(2));
256assertEquals("1.12e-1", (0.112).toExponential(2));
257assertEquals("1.000e-1", (0.1).toExponential(3));
258assertEquals("1.100e-1", (0.11).toExponential(3));
259assertEquals("1.120e-1", (0.112).toExponential(3));
260
261assertEquals("-1e+0", (-1).toExponential());
262assertEquals("-1.1e+1", (-11).toExponential());
263assertEquals("-1.12e+2", (-112).toExponential());
264assertEquals("-1e+0", (-1).toExponential(0));
265assertEquals("-1e+1", (-11).toExponential(0));
266assertEquals("-1e+2", (-112).toExponential(0));
267assertEquals("-1.0e+0", (-1).toExponential(1));
268assertEquals("-1.1e+1", (-11).toExponential(1));
269assertEquals("-1.1e+2", (-112).toExponential(1));
270assertEquals("-1.00e+0", (-1).toExponential(2));
271assertEquals("-1.10e+1", (-11).toExponential(2));
272assertEquals("-1.12e+2", (-112).toExponential(2));
273assertEquals("-1.000e+0", (-1).toExponential(3));
274assertEquals("-1.100e+1", (-11).toExponential(3));
275assertEquals("-1.120e+2", (-112).toExponential(3));
276assertEquals("-1e-1", (-0.1).toExponential());
277assertEquals("-1.1e-1", (-0.11).toExponential());
278assertEquals("-1.12e-1", (-0.112).toExponential());
279assertEquals("-1e-1", (-0.1).toExponential(0));
280assertEquals("-1e-1", (-0.11).toExponential(0));
281assertEquals("-1e-1", (-0.112).toExponential(0));
282assertEquals("-1.0e-1", (-0.1).toExponential(1));
283assertEquals("-1.1e-1", (-0.11).toExponential(1));
284assertEquals("-1.1e-1", (-0.112).toExponential(1));
285assertEquals("-1.00e-1", (-0.1).toExponential(2));
286assertEquals("-1.10e-1", (-0.11).toExponential(2));
287assertEquals("-1.12e-1", (-0.112).toExponential(2));
288assertEquals("-1.000e-1", (-0.1).toExponential(3));
289assertEquals("-1.100e-1", (-0.11).toExponential(3));
290assertEquals("-1.120e-1", (-0.112).toExponential(3));
291
292assertEquals("NaN", (NaN).toExponential(2));
293assertEquals("Infinity", (Infinity).toExponential(2));
294assertEquals("-Infinity", (-Infinity).toExponential(2));
295assertEquals("1e+0", (1).toExponential(0));
296assertEquals("0e+0", (0).toExponential());
297assertEquals("0.00e+0", (0).toExponential(2));
298assertEquals("1e+1", (11.2356).toExponential(0));
299assertEquals("1.1236e+1", (11.2356).toExponential(4));
300assertEquals("1.1236e-4", (0.000112356).toExponential(4));
301assertEquals("-1.1236e-4", (-0.000112356).toExponential(4));
302assertEquals("1.12356e-4", (0.000112356).toExponential());
303assertEquals("-1.12356e-4", (-0.000112356).toExponential());
304
305// ----------------------------------------------------------------------
306// toPrecision
307assertEquals("NaN", (NaN).toPrecision(1));
308assertEquals("Infinity", (Infinity).toPrecision(2));
309assertEquals("-Infinity", (-Infinity).toPrecision(2));
310assertEquals("0.000555000000000000", (0.000555).toPrecision(15));
311assertEquals("5.55000000000000e-7", (0.000000555).toPrecision(15));
312assertEquals("-5.55000000000000e-7", (-0.000000555).toPrecision(15));
313assertEquals("1e+8", (123456789).toPrecision(1));
314assertEquals("123456789", (123456789).toPrecision(9));
315assertEquals("1.2345679e+8", (123456789).toPrecision(8));
316assertEquals("1.234568e+8", (123456789).toPrecision(7));
317assertEquals("-1.234568e+8", (-123456789).toPrecision(7));
318assertEquals("-1.2e-9", Number(-.0000000012345).toPrecision(2));
319assertEquals("-1.2e-8", Number(-.000000012345).toPrecision(2));
320assertEquals("-1.2e-7", Number(-.00000012345).toPrecision(2));
321assertEquals("-0.0000012", Number(-.0000012345).toPrecision(2));
322assertEquals("-0.000012", Number(-.000012345).toPrecision(2));
323assertEquals("-0.00012", Number(-.00012345).toPrecision(2));
324assertEquals("-0.0012", Number(-.0012345).toPrecision(2));
325assertEquals("-0.012", Number(-.012345).toPrecision(2));
326assertEquals("-0.12", Number(-.12345).toPrecision(2));
327assertEquals("-1.2", Number(-1.2345).toPrecision(2));
328assertEquals("-12", Number(-12.345).toPrecision(2));
329assertEquals("-1.2e+2", Number(-123.45).toPrecision(2));
330assertEquals("-1.2e+3", Number(-1234.5).toPrecision(2));
331assertEquals("-1.2e+4", Number(-12345).toPrecision(2));
332assertEquals("-1.235e+4", Number(-12345.67).toPrecision(4));
333assertEquals("-1.234e+4", Number(-12344.67).toPrecision(4));
334// Test that we round up even when the last digit generated is even.
335// dtoa does not do this in its original form.
336assertEquals("1.3", 1.25.toPrecision(2), "1.25.toPrecision(2)");
337assertEquals("1.4", 1.35.toPrecision(2), "1.35.toPrecision(2)");
338