Created
August 11, 2018 12:27
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Room FloatList converter
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import android.arch.persistence.room.TypeConverter | |
class FloatConverter { | |
@TypeConverter | |
fun stringToListOfFloat(value: String): List<Float> { | |
return value.split(",").map { it.toFloat() } | |
} | |
@TypeConverter | |
fun listOfFloatToString(list: List<Float>): String { | |
return list.joinToString(",") | |
} | |
} | |
================================== | |
==============TEST================ | |
================================== | |
import org.hamcrest.Matchers.`is` | |
import org.junit.Assert.assertEquals | |
import org.junit.Assert.assertThat | |
import org.junit.Test | |
class FloatConverterTest { | |
@Test | |
fun stringToListOfFloat() { | |
val numbers = "1, 2, 2.2, 20" | |
val expected = listOf(1F, 2F, 2.2F, 20F) | |
assertThat(FloatConverter().stringToListOfFloat(numbers), `is`(expected)) | |
} | |
@Test | |
fun listOfFloatToString() { | |
val floatList = listOf(1F, 2F, 2.2F, 20F) | |
val expected = "1.0,2.0,2.2,20.0" | |
assertEquals(expected, FloatConverter().listOfFloatToString(floatList)) | |
} | |
} |
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