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Merge pull request #15766 from adalagandev/BAEL-7131_InputStream_vs_InputStreamReader_in_Java_v2 

BAEL-7131 version 1 - POST REPO re-writing the commit history issue.
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Liam Williams 2024-03-26 13:27:14 +00:00 committed by GitHub
parent 82120f03d7 83cc018515
commit e57037e841
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2 changed files with 41 additions and 1 deletions
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3
core-java-modules/core-java-io-apis-2/pom.xml
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@ -96,4 +96,5 @@
<properties>
<junit-jupiter-version>5.9.3</junit-jupiter-version>
</properties>
</project>
</project>

39
core-java-modules/core-java-io-apis-2/src/test/java/com/baeldung/inputstreamreader/InputStreamReaderUnitTest.java Normal file
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@ -0,0 +1,39 @@
package com.baeldung.inputstreamreader;
import static org.assertj.core.api.Assertions.assertThat;
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.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
public class InputStreamReaderUnitTest {
@Test
public void givenAStringWrittenToAFile_whenReadByInputStreamReader_thenShouldMatchWhenRead(@TempDir Path tempDir) throws IOException {
String sampleTxt = "Good day. This is just a test. Good bye.";
Path sampleOut = tempDir.resolve("sample-out.txt");
List<String> lines = Arrays.asList(sampleTxt);
Files.write(sampleOut, lines);
String absolutePath = String.valueOf(sampleOut.toAbsolutePath());
try (InputStreamReader reader = new InputStreamReader(new FileInputStream(absolutePath), StandardCharsets.UTF_8)) {
boolean isMatched = false;
int b;
StringBuilder sb = new StringBuilder();
while ((b = reader.read()) != -1) {
sb.append((char) b);
if (sb.toString().contains(sampleTxt)) {
isMatched = true;
break;
}
}
assertThat(isMatched).isTrue();
}
}
}