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32 lines
1.2 KiB
32 lines
1.2 KiB
8 years ago
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<?php
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namespace Tests\IecType;
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use PHPModbus\IecType;
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use PHPUnit\Framework\TestCase;
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class IecDIntTest extends TestCase
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{
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private static function unPackDInt2HexString($value, $bigEndian = 0)
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{
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return unpack('H*', IecType::iecDINT($value, $bigEndian))[1];
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}
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public function testIecDintEndianingOff()
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{
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$this->assertEquals('00000000', self::unPackDInt2HexString(0));
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$this->assertEquals('00010000', self::unPackDInt2HexString(1));
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$this->assertEquals('ffffffff', self::unPackDInt2HexString(-1));
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$this->assertEquals('ffff7fff', self::unPackDInt2HexString(pow(2, 31) - 1));
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$this->assertEquals('00008000', self::unPackDInt2HexString(-pow(2, 31)));
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}
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public function testIecDintEndianingOn()
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{
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$this->assertEquals('00000000', self::unPackDInt2HexString(0, 1));
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$this->assertEquals('00000001', self::unPackDInt2HexString(1, 1));
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$this->assertEquals('ffffffff', self::unPackDInt2HexString(-1, 1));
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$this->assertEquals('7fffffff', self::unPackDInt2HexString(pow(2, 31) - 1, 1));
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$this->assertEquals('80000000', self::unPackDInt2HexString(-pow(2, 31), 1));
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}
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}
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