package com.racingapp.pitlog.model

import org.junit.Assert.assertEquals
import org.junit.Assert.assertNull
import org.junit.Test

class InchesTest {
    @Test
    fun aFractionParsesAndComesBackAsAFraction() {
        assertEquals(0.0625, parseInches("1/16")!!, 0.00001)
        assertEquals(0.125, parseInches("1/8")!!, 0.00001)
        assertEquals(2.5, parseInches("2 1/2")!!, 0.00001)
        assertEquals(-0.0625, parseInches("-1/16")!!, 0.00001)
        assertEquals(1.125, parseInches("1.125")!!, 0.00001)
        assertEquals("1/16", formatInches(parseInches("1/16")))
        assertEquals("1/8", formatInches(parseInches("1/8")))
        assertEquals("2 1/2", formatInches(parseInches("2 1/2")))
        assertEquals("-1/16", formatInches(parseInches("-1/16")))
        assertEquals("1 1/8", formatInches(1.125))
    }

    @Test
    fun typingKeepsTheSlashUntilTheFractionIsFinished() {
        assertEquals("1/16", sanitizeInches("1/16"))
        assertEquals("1/", sanitizeInches("1/"))
        assertEquals("2 1/2", sanitizeInches("2 1/2"))
        assertEquals("-1/8", sanitizeInches("-1/8", signed = true))
        assertNull(parseInches("1/"))
        assertNull(parseInches("1/0"))
    }
}