BAEL-7131 version 1 - POST REPO re-writing the commit history issue.

This commit is contained in:
adalagandev 2024-01-29 14:46:50 +01:00
parent d458fe57e9
commit b2e89f3574
2 changed files with 98 additions and 0 deletions

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package com.baeldung.inputstream;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Arrays;
import java.util.List;
import org.junit.Assert;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
public class InputStreamTest {
@Test
public void givenAString_whenWrittenToFileInputStream_thenShouldMatchWhenRead(@TempDir Path tempDir) throws IOException {
Path sampleOut = tempDir.resolve("sample-out.txt");
List<String> lines = Arrays.asList("Hello. This is just a test. Good bye.");
Files.write(sampleOut, lines);
File sampleOutFile = sampleOut.toFile();
try(InputStream inputStream = new FileInputStream(sampleOutFile)){
Assert.assertTrue(readString(inputStream).contains(lines.get(0)));
}
}
@Test
public void givenAString_whenWrittenToByteArrayInputStream_thenShouldMatchWhenRead() throws IOException {
byte[] byteArray = {104, 101, 108, 108,111};
try(ByteArrayInputStream bais = new ByteArrayInputStream(byteArray)){
int content;
StringBuilder actualReadText = new StringBuilder();
while ((content = bais.read()) != -1) {
actualReadText.append((char) content);
}
Assert.assertEquals( "hello",actualReadText.toString());
}
}
private static String readString(InputStream inputStream) throws IOException {
String strRet = "";
int c;
StringBuilder sb = new StringBuilder();
while(!((c = inputStream.read()) != -1)) {
sb.append((char) c);
}
strRet = sb.toString();
return strRet;
}
}

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package com.baeldung.inputstreamreader;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Arrays;
import java.util.List;
import org.junit.Assert;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
public class InputStreamReaderTest {
@Test
public void givenAStringWrittenToAFile_whenReadByInputStreamReader_thenShouldMatchWhenRead(@TempDir Path tempDir) throws IOException {
boolean isMatched = false;
String sampleTxt = "Good day. This is just a test. Good bye.";
Path sampleOut = tempDir.resolve("sample-out.txt");
List<String> lines = Arrays.asList(sampleTxt);
//create and write file
Files.write(sampleOut, lines);
try(FileInputStream fis = new FileInputStream(String.valueOf(sampleOut.toAbsolutePath()));
BufferedReader br = new BufferedReader(new InputStreamReader(fis, StandardCharsets.UTF_8));){
String ln;
while((ln = br.readLine())!= null){
if(ln.contains(sampleTxt)){
isMatched = true;
break;
}
}
Assert.assertTrue(isMatched);
}
}
}