Fix test failure due to missing Roboto VF font

import android.graphics.Bitmap

import android.graphics.Canvas

import android.graphics.Typeface

import android.graphics.fonts.Font

import android.graphics.fonts.FontFamily

import android.testing.AndroidTestingRunner

import android.text.Layout

import android.text.StaticLayout

import com.google.common.truth.Truth.assertThat

import org.junit.Test

import org.junit.runner.RunWith

import java.io.File

import kotlin.math.ceil

private const val TEXT = "Hello, World."

private const val BMP_WIDTH = 400

private const val BMP_HEIGHT = 300

// Due to b/189235998 the weight 400 of the default font is no longer variable font. To be able to

// test variable behavior, create the interpolatable typefaces with manually here.

private val VF_FONT = Font.Builder(File("/system/fonts/Roboto-Regular.ttf")).build()

private fun Font.toTypeface() =

        Typeface.CustomFallbackBuilder(FontFamily.Builder(this).build()).build()

private val PAINT = TextPaint().apply {

    typeface = Font.Builder(VF_FONT).setFontVariationSettings("'wght' 400").build().toTypeface()

    textSize = 32f

}

private val START_PAINT = TextPaint(PAINT).apply {

    fontVariationSettings = "'wght' 400"

    typeface = Font.Builder(VF_FONT).setFontVariationSettings("'wght' 400").build().toTypeface()

}

private val END_PAINT = TextPaint(PAINT).apply {

    fontVariationSettings = "'wght' 700"

    typeface = Font.Builder(VF_FONT).setFontVariationSettings("'wght' 700").build().toTypeface()

}

@RunWith(AndroidTestingRunner::class)