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22 lines
655 B
22 lines
655 B
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 IecIntTest extends TestCase
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{
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private static function unPackInt2HexString($value)
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{
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return unpack('H*', IecType::iecINT($value))[1];
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}
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public function testIecInt()
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{
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$this->assertEquals('0000', self::unPackInt2HexString(0));
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$this->assertEquals('0001', self::unPackInt2HexString(1));
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$this->assertEquals('ffff', self::unPackInt2HexString(-1));
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$this->assertEquals('7fff', self::unPackInt2HexString(pow(2, 15) - 1));
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$this->assertEquals('8000', self::unPackInt2HexString(-pow(2, 15)));
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}
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}
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