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package org.openjdk.jmc.flightrecorder.uitest;

import org.junit.Assert;
import org.junit.Rule;
import org.junit.Test;
import org.openjdk.jmc.test.jemmy.MCJemmyTestBase;
import org.openjdk.jmc.test.jemmy.MCUITestRule;
import org.openjdk.jmc.test.jemmy.misc.wrappers.MCChartCanvas;
import org.openjdk.jmc.test.jemmy.misc.wrappers.JfrNavigator;
import org.openjdk.jmc.test.jemmy.misc.wrappers.JfrUi;
import org.openjdk.jmc.test.jemmy.misc.wrappers.MCMenu;
import org.openjdk.jmc.test.jemmy.misc.wrappers.MCTable;

public class JfrThreadsPageTest extends MCJemmyTestBase {

	private static final String PLAIN_JFR = "plain_recording.jfr";
	private static final String TABLE_COLUMN_HEADER = "Thread";
	private static final String HIDE_THREAD = org.openjdk.jmc.flightrecorder.ui.messages.internal.Messages.ThreadsPage_HIDE_THREAD_ACTION;
	private static final String RESET_CHART = org.openjdk.jmc.flightrecorder.ui.messages.internal.Messages.ThreadsPage_RESET_CHART_TO_SELECTION_ACTION;

	private static MCChartCanvas chartCanvas;
	private static MCTable threadsTable;

	@Rule
	public MCUITestRule testRule = new MCUITestRule(verboseRuleOutput) {
		@Override
		public void before() {
			JfrUi.openJfr(materialize("jfr", PLAIN_JFR, JfrThreadsPageTest.class));
			JfrNavigator.selectTab(JfrUi.Tabs.THREADS);
			threadsTable = MCTable.getByColumnHeader(TABLE_COLUMN_HEADER);
			chartCanvas = MCChartCanvas.getChartCanvas();
		}

		@Override
		public void after() {
			MCMenu.closeActiveEditor();
		}
	};

	@Test
	public void testMenuItemEnablement() {
		final int numThreads = threadsTable.getItemCount();
		Assert.assertTrue(numThreads > 0);

		Assert.assertFalse(chartCanvas.isContextMenuItemEnabled(RESET_CHART));
		Assert.assertTrue(chartCanvas.isContextMenuItemEnabled(HIDE_THREAD));

		chartCanvas.clickContextMenuItem(HIDE_THREAD);

		Assert.assertTrue(chartCanvas.isContextMenuItemEnabled(RESET_CHART));
		Assert.assertTrue(chartCanvas.isContextMenuItemEnabled(HIDE_THREAD));

		chartCanvas.clickContextMenuItem(RESET_CHART);

		Assert.assertFalse(chartCanvas.isContextMenuItemEnabled(RESET_CHART));
		Assert.assertTrue(chartCanvas.isContextMenuItemEnabled(HIDE_THREAD));
	}

	@Test
	public void testHideAllThreads() {
		final int numSelection = 7;
		final int numThreads = threadsTable.getItemCount();
		Assert.assertTrue(numThreads > 0 && numThreads >= numSelection);

		// Select a limited number of threads in the chart using the table
		threadsTable.selectItems(0, numSelection - 1);

		// Hide all the threads from the chart
		for (int i = 0; i < numSelection; i++) {
			chartCanvas.clickContextMenuItem(HIDE_THREAD);
		}

		// Once all threads are hidden from the chart, the hide thread menu item will be disabled
		Assert.assertFalse(chartCanvas.isContextMenuItemEnabled(HIDE_THREAD));
		Assert.assertTrue(chartCanvas.isContextMenuItemEnabled(RESET_CHART));

		chartCanvas.clickContextMenuItem(RESET_CHART);

		// Verify the menu item isEnabled values are back to their default values
		Assert.assertTrue(chartCanvas.isContextMenuItemEnabled(HIDE_THREAD));
		Assert.assertFalse(chartCanvas.isContextMenuItemEnabled(RESET_CHART));
	}
}