Merge "SysUI Tests: Make SysUI test self-test errors more expressive"

package com.android;

import static org.hamcrest.Matchers.empty;

import static org.hamcrest.Matchers.is;

import static org.junit.Assert.assertFalse;

import static org.junit.Assert.assertThat;

import android.support.test.filters.LargeTest;

import android.support.test.filters.MediumTest;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.junit.internal.builders.AllDefaultPossibilitiesBuilder;

import java.io.IOException;

import java.lang.reflect.Method;

import java.lang.reflect.Modifier;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collection;

import java.util.Collections;

    @Test

    public void testAllClassInheritance() throws Throwable {

        boolean anyClassWrong = false;

        ArrayList<String> fails = new ArrayList<>();

        for (String className : getClassNamesFromClassPath()) {

            Class<?> cls = Class.forName(className, false, this.getClass().getClassLoader());

            if (!isTestClass(cls)) continue;

            }

            boolean hasSize = hasSize(cls);

            if (!hasSize) {

                anyClassWrong = true;

                Log.e(TAG, cls.getName() + " does not have size annotation, such as @SmallTest");

                fails.add(cls.getName() + " does not have size annotation, such as @SmallTest");

            }

            if (!hasParent) {

                anyClassWrong = true;

                Log.e(TAG, cls.getName() + " does not extend any of " + getClsStr());

                fails.add(cls.getName() + " does not extend any of " + getClsStr());

            }

        }

        assertFalse("All sysui test classes must have size and extend one of " + getClsStr(),

                anyClassWrong);

        assertThat("All sysui test classes must have size and extend one of " + getClsStr(),

                fails, is(empty()));

    }

    private boolean hasSize(Class<?> cls) {