Merge "Re-enable and fix failing tests in NotificationStackScrollLayoutTest" into udc-dev

import org.junit.Assert;

import org.junit.Before;

import org.junit.Ignore;

import org.junit.Rule;

import org.junit.Test;

import org.junit.runner.RunWith;

/**

 * Tests for {@link NotificationStackScrollLayout}.

 */

@Ignore("b/255552856")

@SmallTest

@RunWith(AndroidTestingRunner.class)

@TestableLooper.RunWithLooper

        mStackScroller.setExpandedHeight(expectedHeight);

    }

    @Test

    public void testAppearFractionCalculation() {

        // appear start position

        when(mNotificationShelf.getIntrinsicHeight()).thenReturn(100);

        // because it's the same as shelf height, appear start position equals shelf height

        mStackScroller.mStatusBarHeight = 100;

        // appear end position

        when(mEmptyShadeView.getHeight()).thenReturn(200);

        assertEquals(0f, mStackScroller.calculateAppearFraction(100));

        assertEquals(1f, mStackScroller.calculateAppearFraction(200));

        assertEquals(0.5f, mStackScroller.calculateAppearFraction(150));

    }

    @Test

    public void testAppearFractionCalculationIsNotNegativeWhenShelfBecomesSmaller() {

        // this situation might occur if status bar height is defined in pixels while shelf height

    @Test

    public void testReInflatesFooterViews() {

        when(mEmptyShadeView.getTextResource()).thenReturn(R.string.empty_shade_text);

        clearInvocations(mStackScroller);

        mStackScroller.reinflateViews();

        verify(mStackScroller).setFooterView(any());

        mStackScroller.setHasFilteredOutSeenNotifications(true);

        mStackScroller.updateEmptyShadeView(true, false);

        verify(mEmptyShadeView).setFooterText(not(0));

        verify(mEmptyShadeView).setFooterText(not(eq(0)));

    }

    @Test