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io testing work

This commit is contained in:
eugenp 2014-01-07 12:28:09 +02:00
parent faefaa5088
commit 36d843329e
1 changed files with 19 additions and 9 deletions
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28
core-java/src/test/java/org/baeldung/java/CoreJavaIoUnitTest.java
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@ -7,8 +7,8 @@ import static org.junit.Assert.assertThat;
import java.io.ByteArrayInputStream; import java.io.ByteArrayInputStream;
import java.io.IOException; import java.io.IOException;
import java.io.InputStream; import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader; import java.io.Reader;
import java.io.StringReader;
import java.io.StringWriter; import java.io.StringWriter;
import java.nio.charset.StandardCharsets; import java.nio.charset.StandardCharsets;
import java.util.Scanner; import java.util.Scanner;
@ -19,7 +19,6 @@ import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import org.slf4j.LoggerFactory;
import com.google.common.base.Charsets; import com.google.common.base.Charsets;
import com.google.common.io.ByteSource;
import com.google.common.io.CharStreams; import com.google.common.io.CharStreams;
import com.google.common.io.InputSupplier; import com.google.common.io.InputSupplier;
@ -43,9 +42,17 @@ public class CoreJavaIoUnitTest {
} }
@Test @Test
public final void givenUsingGuavaNoEncoding_whenConvertingAnInputStreamToAString_thenCorrect() throws IOException { public final void givenUsingGuava_whenConvertingAnInputStreamToAString_thenCorrect() throws IOException {
final String originalString = randomAlphabetic(8); final String originalString = randomAlphabetic(8);
final InputSupplier<StringReader> readerSupplier = CharStreams.newReaderSupplier(originalString); final InputStream inputStream = new ByteArrayInputStream(originalString.getBytes());
final InputSupplier<InputStream> inputSupplier = new InputSupplier<InputStream>() {
@Override
public final InputStream getInput() throws IOException {
return inputStream;
}
};
final InputSupplier<InputStreamReader> readerSupplier = CharStreams.newReaderSupplier(inputSupplier, Charsets.UTF_8);
// When // When
final String text = CharStreams.toString(readerSupplier); final String text = CharStreams.toString(readerSupplier);
@ -54,18 +61,21 @@ public class CoreJavaIoUnitTest {
} }
@Test @Test
public final void givenUsingGuavaWithEncoding_whenConvertingAnInputStreamToAString_thenCorrect() throws IOException { public final void givenUsingGuavaAndJava7_whenConvertingAnInputStreamToAString_thenCorrect() throws IOException {
final String originalString = randomAlphabetic(8); final String originalString = randomAlphabetic(8);
final InputSupplier<Reader> readerSupplier = ByteSource.wrap(originalString.getBytes()).asCharSource(Charsets.UTF_8); final InputStream inputStream = new ByteArrayInputStream(originalString.getBytes());
// When // When
final String text = CharStreams.toString(readerSupplier); String text = null;
try (final Reader reader = new InputStreamReader(inputStream)) {
text = CharStreams.toString(reader);
}
assertThat(text, equalTo(originalString)); assertThat(text, equalTo(originalString));
} }
@Test @Test
public final void givenUsingCommonsIoWithEncoding_whenConvertingAnInputStreamToAString_thenCorrect() throws IOException { public final void givenUsingCommonsIo_whenConvertingAnInputStreamToAString_thenCorrect() throws IOException {
final String originalString = randomAlphabetic(8); final String originalString = randomAlphabetic(8);
final InputStream inputStream = new ByteArrayInputStream(originalString.getBytes()); final InputStream inputStream = new ByteArrayInputStream(originalString.getBytes());
@ -75,7 +85,7 @@ public class CoreJavaIoUnitTest {
} }
@Test @Test
public final void givenUsingCommonsIoWithEncoding2_whenConvertingAnInputStreamToAString_thenCorrect() throws IOException { public final void givenUsingCommonsIoWithCopy_whenConvertingAnInputStreamToAString_thenCorrect() throws IOException {
final String originalString = randomAlphabetic(8); final String originalString = randomAlphabetic(8);
final InputStream inputStream = new ByteArrayInputStream(originalString.getBytes()); final InputStream inputStream = new ByteArrayInputStream(originalString.getBytes());