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42 lines
1.0 KiB
42 lines
1.0 KiB
<?php
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namespace Tests\PhpType;
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use PHPModbus\PhpType;
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use PHPUnit\Framework\TestCase;
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class Bytes2SignedInt extends TestCase
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{
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const DATA = [
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0xFF, // -1
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0xFF,
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0xFF,
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0xFF,
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0, // 0
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0,
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0,
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0,
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0, // 1
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0x01,
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0,
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0,
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0, // minus max
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0,
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0x80,
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0x0,
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0xFF, // plus max
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0xFF,
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0x7F,
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0xFF,
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];
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public function testByte2SignedInt()
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{
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$this->assertEquals(-1, PhpType::bytes2signedInt(array_slice(self::DATA, 0, 2)));
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$this->assertEquals(-1, PhpType::bytes2signedInt(array_slice(self::DATA, 0, 4)));
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$this->assertEquals(0, PhpType::bytes2signedInt(array_slice(self::DATA, 4, 4)));
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$this->assertEquals(1, PhpType::bytes2signedInt(array_slice(self::DATA, 8, 4)));
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$this->assertEquals(-2147483648, PhpType::bytes2signedInt(array_slice(self::DATA, 12, 4)));
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$this->assertEquals(2147483647, PhpType::bytes2signedInt(array_slice(self::DATA, 16, 4)));
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}
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}
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