BufferTest.java

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package com.realtime.crossfire.jxclient.gui.log;
 
import com.realtime.crossfire.jxclient.protocol.MessageType;
import java.awt.Color;
import org.jetbrains.annotations.NotNull;
import org.junit.Assert;
import org.junit.Test;
 
@SuppressWarnings("JavaDoc")
public class BufferTest {
 
    @Test
    public void addLine_lines_addsLines() {
        final TestBuffer buffer = new TestBuffer(3, 200, 10);
 
        addLine(buffer, "abc");
        Assert.assertEquals("[0,9,abc]\n", format(buffer));
 
        addLine(buffer, "def", "ghi");
        Assert.assertEquals("""
            [0,9,abc]
            [0,9,def][15,9,ghi]
            """, format(buffer));
 
        addLine(buffer, "jkl");
        Assert.assertEquals("""
            [0,9,abc]
            [0,9,def][15,9,ghi]
            [0,9,jkl]
            """, format(buffer));
 
        addLine(buffer, "mno", "pqr");
        Assert.assertEquals("""
            [0,9,abc]
            [0,9,def][15,9,ghi]
            [0,9,jkl]
            [0,9,mno][15,9,pqr]
            """, format(buffer));
    }
 
    @Test
    public void addLine_longLine_wrapsCorrectly() {
        final TestBuffer buffer = new TestBuffer(3, 145, 10);
 
        addLine(buffer, "a", "b", "c", "d", "e");
        Assert.assertEquals("[0,9,a][5,9,b][10,9,c][15,9,d][20,9,e]\n", format(buffer));
    }
 
    @Test
    public void prune_pos_prunesExcessLines() {
        final TestBuffer buffer = new TestBuffer(3, 200, 10);
 
        addLine(buffer, "abc");
        buffer.prune();
        Assert.assertEquals("[0,9,abc]\n", format(buffer));
 
        addLine(buffer, "def", "ghi");
        buffer.prune();
        Assert.assertEquals("""
            [0,9,abc]
            [0,9,def][15,9,ghi]
            """, format(buffer));
 
        addLine(buffer, "jkl");
        buffer.prune();
        Assert.assertEquals("""
            [0,9,abc]
            [0,9,def][15,9,ghi]
            [0,9,jkl]
            """, format(buffer));
 
        addLine(buffer, "mno", "pqr");
        buffer.prune();
        Assert.assertEquals("""
            [0,9,def][15,9,ghi]
            [0,9,jkl]
            [0,9,mno][15,9,pqr]
            """, format(buffer));
    }
 
    @Test
    public void prune_lines_prunesExcessLines() {
        final TestBuffer buffer = new TestBuffer(3, 250, 10);
 
        addLine(buffer, "abc");
        Assert.assertEquals("0", formatLines(buffer));
        buffer.prune();
        Assert.assertEquals("0", formatLines(buffer));
 
        addLine(buffer, "def", "ghi");
        Assert.assertEquals("0 13", formatLines(buffer));
        buffer.prune();
        Assert.assertEquals("0 13", formatLines(buffer));
 
        addLine(buffer, "jkl");
        Assert.assertEquals("0 13 29", formatLines(buffer));
        buffer.prune();
        Assert.assertEquals("0 13 29", formatLines(buffer));
 
        addLine(buffer, "mno", "pqr");
        Assert.assertEquals("0 13 29 42", formatLines(buffer));
        buffer.prune();
        Assert.assertEquals("0 16 29", formatLines(buffer));
    }
 
    @Test
    public void prune_hideSentCommands_prunesExcessLines() {
        final TestBuffer buffer = new TestBuffer(3, 200, 10);
 
        addLineWithType(buffer, MessageType.MSG_TYPE_JXCLIENT, MessageType.MSG_SUBTYPE_JXCLIENT_COMMAND, "1");
        addLineWithType(buffer, MessageType.MSG_TYPE_BOOK, MessageType.MSG_SUBTYPE_BOOK_CLASP_1, "2");
        addLineWithType(buffer, MessageType.MSG_TYPE_JXCLIENT, MessageType.MSG_SUBTYPE_JXCLIENT_COMMAND, "3");
        addLineWithType(buffer, MessageType.MSG_TYPE_BOOK, MessageType.MSG_SUBTYPE_BOOK_CLASP_1, "4");
        addLineWithType(buffer, MessageType.MSG_TYPE_JXCLIENT, MessageType.MSG_SUBTYPE_JXCLIENT_COMMAND, "5");
        Assert.assertEquals("""
            [0,9,1]
            [0,9,2]
            [0,9,3]
            [0,9,4]
            [0,9,5]
            """, format(buffer));
        buffer.prune();
        Assert.assertEquals("""
            [0,9,3]
            [0,9,4]
            [0,9,5]
            """, format(buffer));
    }
 
    private static void addLine(@NotNull final TestBuffer buffer, @NotNull final String @NotNull ... text) {
        addLineWithType(buffer, MessageType.MSG_TYPE_BOOK, MessageType.MSG_SUBTYPE_BOOK_CLASP_1, text);
    }
 
    private static void addLineWithType(@NotNull final TestBuffer buffer, final int type, final int subtype, @NotNull final String @NotNull ... text) {
        final Line line = new Line(type, subtype, buffer.newTextSegment("timestamp ", false, false, false, FontID.PRINT, Color.BLACK, Color.BLACK));
        for (final String word : text) {
            buffer.addTextSegment(line, word, false, false, false, FontID.PRINT, Color.BLACK, Color.BLACK);
        }
        buffer.addLine(line);
    }
 
    @NotNull
    private static String format(@NotNull final TestBuffer buffer) {
        final StringBuilder sb = new StringBuilder();
        synchronized (buffer.getSyncObject()) {
            for (final Line line : buffer.lines(0)) {
                for (final TextSegment segment : line.segments()) {
                    sb.append(segment.format());
                }
                sb.append("\n");
            }
        }
        return sb.toString();
    }
 
    @NotNull
    private static String formatLines(@NotNull final TestBuffer buffer) {
        final StringBuilder sb = new StringBuilder();
        synchronized (buffer.getSyncObject()) {
            for (final Line line : buffer.lines(0)) {
                if (!sb.isEmpty()) {
                    sb.append(" ");
                }
                sb.append(line.getStartPosition());
            }
        }
        return sb.toString();
    }
 
}