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package it.niedermann.nextcloud.deck.util;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import android.graphics.Color;
import androidx.core.util.Pair;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.RobolectricTestRunner;
import java.util.ArrayList;
@RunWith(RobolectricTestRunner.class)
public class DeckColorUtilTest {
@Test
public void testContrastRatioIsSufficient() {
final var sufficientContrastColorPairs = new ArrayList<Pair<Integer, Integer>>();
sufficientContrastColorPairs.add(new Pair<>(Color.BLACK, Color.WHITE));
sufficientContrastColorPairs.add(new Pair<>(Color.WHITE, Color.parseColor("#0082C9")));
for (final var colorPair : sufficientContrastColorPairs) {
assert colorPair.first != null;
assert colorPair.second != null;
assertTrue(
"Expect contrast between " + String.format("#%06X", (0xFFFFFF & colorPair.first)) + " and " + String.format("#%06X", (0xFFFFFF & colorPair.second)) + " to be sufficient",
DeckColorUtil.contrastRatioIsSufficient(colorPair.first, colorPair.second)
);
}
final var insufficientContrastColorPairs = new ArrayList<Pair<Integer, Integer>>();
insufficientContrastColorPairs.add(new Pair<>(Color.WHITE, Color.WHITE));
insufficientContrastColorPairs.add(new Pair<>(Color.BLACK, Color.BLACK));
for (final var colorPair : insufficientContrastColorPairs) {
assert colorPair.first != null;
assert colorPair.second != null;
assertFalse(
"Expect contrast between " + String.format("#%06X", (0xFFFFFF & colorPair.first)) + " and " + String.format("#%06X", (0xFFFFFF & colorPair.second)) + " to be insufficient",
DeckColorUtil.contrastRatioIsSufficient(colorPair.first, colorPair.second)
);
}
}
}
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