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ExchangeTest.php
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ExchangeTest.php
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<?php
use ccxt\Exchange;
use PHPUnit\Framework\TestCase;
use const ccxt\DECIMAL_PLACES;
use const ccxt\NO_PADDING;
use const ccxt\PAD_WITH_ZERO;
use const ccxt\ROUND;
use const ccxt\SIGNIFICANT_DIGITS;
use const ccxt\TRUNCATE;
class ExchangeTest extends TestCase {
public function testSum () {
$this->assertSame (0, Exchange::sum ());
$this->assertSame (2, Exchange::sum (2));
$this->assertSame (432, Exchange::sum (2, 30, 400));
$this->assertSame (439, Exchange::sum (2, null, [88], 30, '7', 400, null));
}
public function testDecimalToPrecisionErrorHandling () {
$this->expectException ('ccxt\\BaseError');
$this->expectExceptionMessageRegExp ('/Negative precision is not yet supported/');
Exchange::decimalToPrecision ('123456.789', TRUNCATE, -2, DECIMAL_PLACES);
$this->expectException ('ccxt\\BaseError');
$this->expectExceptionMessageRegExp ('/Invalid number/');
Exchange::decimalToPrecision ('foo');
}
/**
* @dataProvider truncationToNDigitsAfterDot
*/
public function testDecimalToPrecisionTruncationToNDigitsAfterDot ($n, $rounding_mode, $precision, $counting_mode, $expected) {
$this->assertSame ($expected, Exchange::decimalToPrecision ($n, $rounding_mode, $precision, $counting_mode));
}
public function truncationToNDigitsAfterDot () {
Exchange::sum(); // hack for constants :|
return [
['12.3456000', TRUNCATE, 100, DECIMAL_PLACES, '12.3456'],
['12.3456', TRUNCATE, 100, DECIMAL_PLACES, '12.3456'],
['12.3456', TRUNCATE, 4, DECIMAL_PLACES, '12.3456'],
['12.3456', TRUNCATE, 3, DECIMAL_PLACES, '12.345'],
['12.3456', TRUNCATE, 2, DECIMAL_PLACES, '12.34'],
['12.3456', TRUNCATE, 1, DECIMAL_PLACES, '12.3'],
['12.3456', TRUNCATE, 0, DECIMAL_PLACES, '12'],
// ['12.3456', TRUNCATE, -1, DECIMAL_PLACES, '10'], // not yet supported
// ['123.456', TRUNCATE, -2, DECIMAL_PLACES, '120'], // not yet supported
// ['123.456', TRUNCATE, -3, DECIMAL_PLACES, '100'], // not yet supported
];
}
/**
* @dataProvider truncationToNSignificantDigits
*/
public function testDecimalToPrecisionTruncationToNSignificantDigits ($n, $rounding_mode, $precision, $counting_mode, $padding_mode, $expected) {
$this->assertSame ($expected, Exchange::decimalToPrecision ($n, $rounding_mode, $precision, $counting_mode, $padding_mode));
}
public function truncationToNSignificantDigits () {
return [
['0.000123456700', TRUNCATE, 100, SIGNIFICANT_DIGITS, NO_PADDING, '0.0001234567'],
['0.0001234567', TRUNCATE, 100, SIGNIFICANT_DIGITS, NO_PADDING, '0.0001234567'],
['0.0001234567', TRUNCATE, 7, SIGNIFICANT_DIGITS, NO_PADDING, '0.0001234567'],
['0.000123456', TRUNCATE, 6, SIGNIFICANT_DIGITS, NO_PADDING, '0.000123456'],
['0.00012345', TRUNCATE, 5, SIGNIFICANT_DIGITS, NO_PADDING, '0.00012345'],
['0.00012', TRUNCATE, 2, SIGNIFICANT_DIGITS, NO_PADDING, '0.00012'],
['0.0001', TRUNCATE, 1, SIGNIFICANT_DIGITS, NO_PADDING, '0.0001'],
['123.0000987654', TRUNCATE, 10, SIGNIFICANT_DIGITS, NO_PADDING, '123.0000987'],
['123.0000987654', TRUNCATE, 8, SIGNIFICANT_DIGITS, NO_PADDING, '123.00009'],
['123.0000987654', TRUNCATE, 7, SIGNIFICANT_DIGITS, NO_PADDING, '123'],
['123.0000987654', TRUNCATE, 7, SIGNIFICANT_DIGITS, PAD_WITH_ZERO, '123.0000'],
['123.0000987654', TRUNCATE, 4, SIGNIFICANT_DIGITS, PAD_WITH_ZERO, '123.0'],
['123.0000987654', TRUNCATE, 2, SIGNIFICANT_DIGITS, NO_PADDING, '120'],
['123.0000987654', TRUNCATE, 1, SIGNIFICANT_DIGITS, NO_PADDING, '100'],
['123.0000987654', TRUNCATE, 1, SIGNIFICANT_DIGITS, PAD_WITH_ZERO, '100'],
];
}
/**
* @dataProvider roundingToNDigitsAfterDot
*/
public function testDecimalToPrecisionRoundingToNDigitsAfterDot ($n, $rounding_mode, $precision, $counting_mode, $padding_mode, $expected) {
$this->assertSame ($expected, Exchange::decimalToPrecision ($n, $rounding_mode, $precision, $counting_mode, $padding_mode));
}
public function roundingToNDigitsAfterDot () {
return [
['12.3456000', ROUND, 100, DECIMAL_PLACES, NO_PADDING, '12.3456'],
['12.3456', ROUND, 100, DECIMAL_PLACES, NO_PADDING, '12.3456'],
['12.3456', ROUND, 4, DECIMAL_PLACES, NO_PADDING, '12.3456'],
['12.3456', ROUND, 3, DECIMAL_PLACES, NO_PADDING, '12.346'],
['12.3456', ROUND, 2, DECIMAL_PLACES, NO_PADDING, '12.35'],
['12.3456', ROUND, 1, DECIMAL_PLACES, NO_PADDING, '12.3'],
['12.3456', ROUND, 0, DECIMAL_PLACES, NO_PADDING, '12'],
// ['12.3456', ROUND, -1, DECIMAL_PLACES, NO_PADDING, '10'], // not yet supported
// ['123.456', ROUND, -1, DECIMAL_PLACES, NO_PADDING, '120'], // not yet supported
// ['123.456', ROUND, -2, DECIMAL_PLACES, NO_PADDING, '100'], // not yet supported
[ '9.999', ROUND, 3, DECIMAL_PLACES, NO_PADDING, '9.999'],
[ '9.999', ROUND, 2, DECIMAL_PLACES, NO_PADDING, '10'],
[ '9.999', ROUND, 2, DECIMAL_PLACES, PAD_WITH_ZERO, '10.00'],
[ '99.999', ROUND, 2, DECIMAL_PLACES, PAD_WITH_ZERO, '100.00'],
['-99.999', ROUND, 2, DECIMAL_PLACES, PAD_WITH_ZERO, '-100.00'],
];
}
/**
* @dataProvider roundingToNSignificantDigits
*/
public function testDecimalToPrecisionRoundingToNSignificantDigits ($n, $rounding_mode, $precision, $counting_mode, $padding_mode, $expected) {
$this->assertSame ($expected, Exchange::decimalToPrecision ($n, $rounding_mode, $precision, $counting_mode, $padding_mode));
}
public function roundingToNSignificantDigits () {
return [
['0.000123456700', ROUND, 100, SIGNIFICANT_DIGITS, NO_PADDING, '0.0001234567'],
['0.0001234567', ROUND, 100, SIGNIFICANT_DIGITS, NO_PADDING, '0.0001234567'],
['0.0001234567', ROUND, 7, SIGNIFICANT_DIGITS, NO_PADDING, '0.0001234567'],
['0.000123456', ROUND, 6, SIGNIFICANT_DIGITS, NO_PADDING, '0.000123456'],
['0.000123456', ROUND, 5, SIGNIFICANT_DIGITS, NO_PADDING, '0.00012346'],
['0.000123456', ROUND, 4, SIGNIFICANT_DIGITS, NO_PADDING, '0.0001235'],
['0.00012', ROUND, 2, SIGNIFICANT_DIGITS, NO_PADDING, '0.00012'],
['0.0001', ROUND, 1, SIGNIFICANT_DIGITS, NO_PADDING, '0.0001'],
['123.0000987654', ROUND, 7, SIGNIFICANT_DIGITS, NO_PADDING, '123.0001'],
['123.0000987654', ROUND, 6, SIGNIFICANT_DIGITS, NO_PADDING, '123'],
['0.00098765', ROUND, 2, SIGNIFICANT_DIGITS, NO_PADDING, '0.00099'],
['0.00098765', ROUND, 2, SIGNIFICANT_DIGITS, PAD_WITH_ZERO, '0.00099'],
['0.00098765', ROUND, 1, SIGNIFICANT_DIGITS, NO_PADDING, '0.001'],
['0.00098765', ROUND, 10, SIGNIFICANT_DIGITS, PAD_WITH_ZERO, '0.0009876500000'],
['0.098765', ROUND, 1, SIGNIFICANT_DIGITS, PAD_WITH_ZERO, '0.1'],
];
}
/**
* @dataProvider negativeNumbers
*/
public function testDecimalToPrecisionNegativeNumbers ($n, $rounding_mode, $precision, $counting_mode, $expected) {
$this->assertSame ($expected, Exchange::decimalToPrecision ($n, $rounding_mode, $precision, $counting_mode));
}
public function negativeNumbers () {
return [
['-0.123456', TRUNCATE, 5, DECIMAL_PLACES, '-0.12345'],
['-0.123456', ROUND, 5, DECIMAL_PLACES, '-0.12346'],
];
}
public function testDatetimeFunctions () {
$this->assertSame (null, Exchange::iso8601 (null));
$this->assertSame (null, Exchange::iso8601 (false));
$this->assertSame (null, Exchange::iso8601 ([]));
$this->assertSame (null, Exchange::iso8601 ('abracadabra'));
$this->assertSame (null, Exchange::iso8601 ('1.2'));
$this->assertSame (null, Exchange::iso8601 (-1));
$this->assertSame (null, Exchange::iso8601 ('-1'));
$this->assertSame ('1970-01-01T00:00:00.000+00:00', Exchange::iso8601 (0));
$this->assertSame ('1970-01-01T00:00:00.000+00:00', Exchange::iso8601 ('0'));
$this->assertSame ('1986-04-25T21:23:47.000+00:00', Exchange::iso8601 (514848227000));
$this->assertSame ('1986-04-25T21:23:47.000+00:00', Exchange::iso8601 ('514848227000'));
$this->assertSame (null, Exchange::parse_date (null));
$this->assertSame (null, Exchange::parse_date (0));
$this->assertSame (null, Exchange::parse_date ('0'));
$this->assertSame (null, Exchange::parse_date ('+1 day'));
$this->assertSame (null, Exchange::parse_date ('1986-04-25T21:23:47+00:00 + 1 week'));
$this->assertSame (null, Exchange::parse_date ('1 february'));
$this->assertSame (null, Exchange::parse_date ('1986-04-26'));
$this->assertSame (0, Exchange::parse_date ('1970-01-01T00:00:00.000+00:00'));
$this->assertSame (514848227000, Exchange::parse_date ('1986-04-25T21:23:47+00:00'));
$this->assertSame (514848227000, Exchange::parse_date ('1986-04-26T01:23:47+04:00'));
$this->assertSame (514848227000, Exchange::parse_date ('25 Apr 1986 21:23:47 GMT'));
$this->assertSame (514862627000, Exchange::parse_date ('1986-04-26T01:23:47.000Z'));
$this->assertSame (514862627123, Exchange::parse_date ('1986-04-26T01:23:47.123Z'));
}
}