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[BAEL-2255] improved a few examples

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markoprevisic
2018-10-27 13:05:31 +02:00
parent 940146e03e
commit d4db4ced08
2 changed files with 25 additions and 12 deletions
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core-java/src/main/java/com/baeldung/bufferedreader/BufferedReaderExample.java
+4 -3
View File
@@ -37,12 +37,13 @@ public class BufferedReaderExample {
}
public String readMultipleChars(BufferedReader reader) throws IOException {
char[] chars = new char[5];
int charsRead = reader.read(chars, 0, 5);
int length = 5;
char[] chars = new char[length];
int charsRead = reader.read(chars, 0, length);
String result;
if (charsRead != -1) {
result = new String(chars);
result = new String(chars, charsRead, 0);
} else {
result = "";
}
core-java/src/test/java/com/baeldung/bufferedreader/BufferedReaderExampleUnitTest.java
+21 -9
View File
@@ -6,17 +6,19 @@ import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.StringReader;
import java.nio.file.Files;
import java.nio.file.Paths;
import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.*;
public class BufferedReaderExampleUnitTest {
public static final String FILE_NAME = "src/main/resources/input.txt";
public static final String FILE_PATH = "src/main/resources/input.txt";
@Test
public void givenBufferedReader_whenReadAllLines_thenReturnsContent() throws IOException {
BufferedReader reader = new BufferedReader(new FileReader(FILE_NAME));
BufferedReader reader = new BufferedReader(new FileReader(FILE_PATH));
BufferedReaderExample bre = new BufferedReaderExample();
String content = bre.readAllLines(reader);
@@ -27,7 +29,7 @@ public class BufferedReaderExampleUnitTest {
@Test
public void givenBufferedReader_whenReadAllLinesWithStream_thenReturnsContent() throws IOException {
BufferedReader reader = new BufferedReader(new FileReader(FILE_NAME));
BufferedReader reader = new BufferedReader(new FileReader(FILE_PATH));
BufferedReaderExample bre = new BufferedReaderExample();
String content = bre.readAllLinesWithStream(reader);
@@ -46,7 +48,7 @@ public class BufferedReaderExampleUnitTest {
@Test
public void givenBufferedReader_whenReadAllCharsOneByOne_thenReturnsContent() throws IOException {
BufferedReader reader = new BufferedReader(new FileReader(FILE_NAME));
BufferedReader reader = new BufferedReader(new FileReader(FILE_PATH));
BufferedReaderExample bre = new BufferedReaderExample();
String content = bre.readAllCharsOneByOne(reader);
@@ -57,7 +59,7 @@ public class BufferedReaderExampleUnitTest {
@Test
public void givenBufferedReader_whenReadMultipleChars_thenReturnsContent() throws IOException {
BufferedReader reader = new BufferedReader(new FileReader(FILE_NAME));
BufferedReader reader = new BufferedReader(new FileReader(FILE_PATH));
BufferedReaderExample bre = new BufferedReaderExample();
String content = bre.readMultipleChars(reader);
@@ -94,11 +96,11 @@ public class BufferedReaderExampleUnitTest {
String result;
try (BufferedReader reader = new BufferedReader(new StringReader(" Lorem ipsum dolor sit amet."))) {
reader.mark(1);
assertTrue(reader.markSupported());
while (Character.isWhitespace(reader.read())) {
do {
reader.mark(1);
}
} while(Character.isWhitespace(reader.read()));
reader.reset();
result = reader.readLine();
@@ -107,4 +109,14 @@ public class BufferedReaderExampleUnitTest {
assertEquals("Lorem ipsum dolor sit amet.", result);
}
@Test
public void whenCreatesNewBufferedReader_thenOk() throws IOException {
BufferedReader reader = Files.newBufferedReader(Paths.get(FILE_PATH));
assertNotNull(reader);
assertTrue(reader.ready());
reader.close();
}
}