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[BAEL-3121] Added source for finding number of lines in a file

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sreekanth.nair
2019-08-09 08:29:13 +05:30
parent 43cfd56b9c
commit c9176915cb
5 changed files with 87 additions and 16 deletions
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60
core-java-modules/core-java-io/src/test/java/com/baeldung/file/NumberOfLineFinderUnitTest.java
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package com.baeldung.file;
import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingApacheCommonsIO;
import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingBufferedReader;
import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingGoogleGuava;
import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingLineNumberReader;
import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingNIOFileChannel;
import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingNIOFiles;
import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingScanner;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
public class NumberOfLineFinderUnitTest {
private static final String INPUT_FILE_NAME = "src/main/resources/input.txt";
private static final int ACTUAL_LINE_COUNT = 45;
@Test
public void whenUsingBufferedReader_thenReturnTotalNumberOfLines() {
int lines = getTotalNumberOfLinesUsingBufferedReader(INPUT_FILE_NAME);
assertEquals(ACTUAL_LINE_COUNT, lines);
}
@Test
public void whenUsingLineNumberReader_thenReturnTotalNumberOfLines() {
int lines = getTotalNumberOfLinesUsingLineNumberReader(INPUT_FILE_NAME);
assertEquals(ACTUAL_LINE_COUNT, lines);
}
@Test
public void whenUsingScanner_thenReturnTotalNumberOfLines() {
int lines = getTotalNumberOfLinesUsingScanner(INPUT_FILE_NAME);
assertEquals(ACTUAL_LINE_COUNT, lines);
}
@Test
public void whenUsingNIOFiles_thenReturnTotalNumberOfLines() {
int lines = getTotalNumberOfLinesUsingNIOFiles(INPUT_FILE_NAME);
assertEquals(ACTUAL_LINE_COUNT, lines);
}
@Test
public void whenUsingNIOFileChannel_thenReturnTotalNumberOfLines() {
int lines = getTotalNumberOfLinesUsingNIOFileChannel(INPUT_FILE_NAME);
assertEquals(ACTUAL_LINE_COUNT, lines);
}
@Test
public void whenUsingApacheCommonsIO_thenReturnTotalNumberOfLines() {
int lines = getTotalNumberOfLinesUsingApacheCommonsIO(INPUT_FILE_NAME);
assertEquals(ACTUAL_LINE_COUNT, lines);
}
@Test
public void whenUsingGoogleGuava_thenReturnTotalNumberOfLines() {
int lines = getTotalNumberOfLinesUsingGoogleGuava(INPUT_FILE_NAME);
assertEquals(ACTUAL_LINE_COUNT, lines);
}
}