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https://github.com/SquidDev-CC/CC-Tweaked
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Refactor and add tests for TextBuffer (#738)
This commit is contained in:
Ronan Hanley
Jummit
parent
a28e7e2db3
commit
8984ebcf80
@ -3,168 +3,84 @@
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* Copyright Daniel Ratcliffe, 2011-2021. Do not distribute without permission.
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* Send enquiries to dratcliffe@gmail.com
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*/
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package dan200.computercraft.core.terminal;
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public class TextBuffer {
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private final char[] m_text;
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public class TextBuffer
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{
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private final char[] text;
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public TextBuffer(char c, int length) {
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this.m_text = new char[length];
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for (int i = 0; i < length; i++) {
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this.m_text[i] = c;
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}
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public TextBuffer( char c, int length )
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{
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text = new char[length];
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this.fill( c );
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}
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public TextBuffer(String text) {
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this(text, 1);
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public TextBuffer( String text )
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{
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this.text = text.toCharArray();
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}
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public TextBuffer(String text, int repetitions) {
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int textLength = text.length();
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this.m_text = new char[textLength * repetitions];
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for (int i = 0; i < repetitions; i++) {
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for (int j = 0; j < textLength; j++) {
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this.m_text[j + i * textLength] = text.charAt(j);
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}
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}
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public int length()
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{
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return text.length;
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}
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public TextBuffer(TextBuffer text) {
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this(text, 1);
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public void write( String text )
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{
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write( text, 0 );
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}
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public TextBuffer(TextBuffer text, int repetitions) {
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int textLength = text.length();
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this.m_text = new char[textLength * repetitions];
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for (int i = 0; i < repetitions; i++) {
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for (int j = 0; j < textLength; j++) {
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this.m_text[j + i * textLength] = text.charAt(j);
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}
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}
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}
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public int length() {
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return this.m_text.length;
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}
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public char charAt(int i) {
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return this.m_text[i];
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}
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public String read() {
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return this.read(0, this.m_text.length);
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}
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public String read(int start, int end) {
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start = Math.max(start, 0);
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end = Math.min(end, this.m_text.length);
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int textLength = Math.max(end - start, 0);
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return new String(this.m_text, start, textLength);
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}
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public String read(int start) {
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return this.read(start, this.m_text.length);
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}
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public void write(String text) {
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this.write(text, 0, text.length());
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}
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public void write(String text, int start, int end) {
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public void write( String text, int start )
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{
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int pos = start;
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start = Math.max(start, 0);
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end = Math.min(end, pos + text.length());
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end = Math.min(end, this.m_text.length);
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for (int i = start; i < end; i++) {
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this.m_text[i] = text.charAt(i - pos);
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start = Math.max( start, 0 );
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int end = Math.min( start + text.length(), pos + text.length() );
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end = Math.min( end, this.text.length );
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for( int i = start; i < end; i++ )
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{
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this.text[i] = text.charAt( i - pos );
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}
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}
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public void write(String text, int start) {
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this.write(text, start, start + text.length());
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}
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public void write(TextBuffer text) {
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this.write(text, 0, text.length());
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}
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public void write(TextBuffer text, int start, int end) {
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int pos = start;
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start = Math.max(start, 0);
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end = Math.min(end, pos + text.length());
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end = Math.min(end, this.m_text.length);
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for (int i = start; i < end; i++) {
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this.m_text[i] = text.charAt(i - pos);
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public void write( TextBuffer text )
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{
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int end = Math.min( text.length(), this.text.length );
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for( int i = 0; i < end; i++ )
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{
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this.text[i] = text.charAt( i );
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}
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}
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public void write(TextBuffer text, int start) {
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this.write(text, start, start + text.length());
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public void fill( char c )
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{
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fill( c, 0, text.length );
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}
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public void fill(char c) {
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this.fill(c, 0, this.m_text.length);
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}
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public void fill(char c, int start, int end) {
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start = Math.max(start, 0);
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end = Math.min(end, this.m_text.length);
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for (int i = start; i < end; i++) {
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this.m_text[i] = c;
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public void fill( char c, int start, int end )
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{
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start = Math.max( start, 0 );
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end = Math.min( end, text.length );
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for( int i = start; i < end; i++ )
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{
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text[i] = c;
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}
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}
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public void fill(char c, int start) {
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this.fill(c, start, this.m_text.length);
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public char charAt( int i )
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{
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return text[i];
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}
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public void fill(String text) {
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this.fill(text, 0, this.m_text.length);
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}
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public void fill(String text, int start, int end) {
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int pos = start;
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start = Math.max(start, 0);
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end = Math.min(end, this.m_text.length);
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int textLength = text.length();
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for (int i = start; i < end; i++) {
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this.m_text[i] = text.charAt((i - pos) % textLength);
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public void setChar( int i, char c )
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{
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if( i >= 0 && i < text.length )
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{
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text[i] = c;
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}
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}
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public void fill(String text, int start) {
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this.fill(text, start, this.m_text.length);
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public String toString()
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{
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return new String( text );
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}
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public void fill(TextBuffer text) {
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this.fill(text, 0, this.m_text.length);
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}
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public void fill(TextBuffer text, int start, int end) {
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int pos = start;
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start = Math.max(start, 0);
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end = Math.min(end, this.m_text.length);
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int textLength = text.length();
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for (int i = start; i < end; i++) {
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this.m_text[i] = text.charAt((i - pos) % textLength);
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}
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}
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public void fill(TextBuffer text, int start) {
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this.fill(text, start, this.m_text.length);
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}
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public void setChar(int i, char c) {
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if (i >= 0 && i < this.m_text.length) {
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this.m_text[i] = c;
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}
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}
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@Override
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public String toString() {
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return new String(this.m_text);
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}
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}
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}
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@ -0,0 +1,150 @@
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/*
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* This file is part of ComputerCraft - http://www.computercraft.info
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* Copyright Daniel Ratcliffe, 2011-2021. Do not distribute without permission.
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* Send enquiries to dratcliffe@gmail.com
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*/
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package dan200.computercraft.core.terminal;
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import org.junit.jupiter.api.Test;
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import static org.junit.jupiter.api.Assertions.*;
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class TextBufferTest
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{
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@Test
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void testStringConstructor()
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{
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TextBuffer textBuffer = new TextBuffer( "test" );
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assertEquals( "test", textBuffer.toString() );
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}
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@Test
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void testCharRepetitionConstructor()
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{
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TextBuffer textBuffer = new TextBuffer( 'a', 5 );
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assertEquals( "aaaaa", textBuffer.toString() );
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}
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@Test
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void testLength()
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{
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TextBuffer textBuffer = new TextBuffer( "test" );
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assertEquals( 4, textBuffer.length() );
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}
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@Test
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void testWrite()
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{
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TextBuffer textBuffer = new TextBuffer( ' ', 4 );
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textBuffer.write( "test" );
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assertEquals( "test", textBuffer.toString() );
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}
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@Test
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void testWriteTextBuffer()
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{
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TextBuffer source = new TextBuffer( "test" );
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TextBuffer target = new TextBuffer( " " );
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target.write( source );
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assertEquals( "test", target.toString() );
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}
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@Test
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void testWriteFromPos()
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{
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TextBuffer textBuffer = new TextBuffer( "test" );
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textBuffer.write( "il", 1 );
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assertEquals( "tilt", textBuffer.toString() );
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}
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@Test
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void testWriteOutOfBounds()
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{
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TextBuffer textBuffer = new TextBuffer( "test" );
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textBuffer.write( "abcdefghijklmnop", -5 );
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assertEquals( "fghi", textBuffer.toString() );
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}
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@Test
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void testWriteOutOfBounds2()
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{
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TextBuffer textBuffer = new TextBuffer( " " );
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textBuffer.write( "Hello, world!", -3 );
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assertEquals( "lo, world! ", textBuffer.toString() );
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}
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@Test
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void testFill()
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{
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TextBuffer textBuffer = new TextBuffer( "test" );
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textBuffer.fill( 'c' );
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assertEquals( "cccc", textBuffer.toString() );
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}
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@Test
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void testFillSubstring()
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{
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TextBuffer textBuffer = new TextBuffer( "test" );
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textBuffer.fill( 'c', 1, 3 );
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assertEquals( "tcct", textBuffer.toString() );
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}
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@Test
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void testFillOutOfBounds()
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{
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TextBuffer textBuffer = new TextBuffer( "test" );
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textBuffer.fill( 'c', -5, 5 );
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assertEquals( "cccc", textBuffer.toString() );
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}
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@Test
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void testCharAt()
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{
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TextBuffer textBuffer = new TextBuffer( "test" );
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assertEquals( 'e', textBuffer.charAt( 1 ) );
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}
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@Test
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void testSetChar()
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{
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TextBuffer textBuffer = new TextBuffer( "test" );
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textBuffer.setChar( 2, 'n' );
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assertEquals( "tent", textBuffer.toString() );
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}
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@Test
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void testSetCharWithNegativeIndex()
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{
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TextBuffer textBuffer = new TextBuffer( "test" );
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textBuffer.setChar( -5, 'n' );
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assertEquals( "test", textBuffer.toString(), "Buffer should not change after setting char with negative index." );
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}
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@Test
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void testSetCharWithIndexBeyondBufferEnd()
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{
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TextBuffer textBuffer = new TextBuffer( "test" );
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textBuffer.setChar( 10, 'n' );
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assertEquals( "test", textBuffer.toString(), "Buffer should not change after setting char beyond buffer end." );
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}
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@Test
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void testMultipleOperations()
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{
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TextBuffer textBuffer = new TextBuffer( ' ', 5 );
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textBuffer.setChar( 0, 'H' );
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textBuffer.setChar( 1, 'e' );
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textBuffer.setChar( 2, 'l' );
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textBuffer.write( "lo", 3 );
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assertEquals( "Hello", textBuffer.toString(), "TextBuffer failed to persist over multiple operations." );
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}
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@Test
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void testEmptyBuffer()
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{
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TextBuffer textBuffer = new TextBuffer( "" );
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// exception on writing to empty buffer would fail the test
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textBuffer.write( "test" );
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assertEquals( "", textBuffer.toString() );
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}
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}
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