From 881545c45419321d52d42a773a68c8a1d9d27392 Mon Sep 17 00:00:00 2001
From: Roman Proshin <roman@proshin.org>
Date: Thu, 22 Mar 2018 15:40:37 +0300
Subject: [PATCH] #686: Add more tests for OutputTo

---
 .../java/org/cactoos/io/OutputToTest.java     | 131 +++++++++++++++++-
 1 file changed, 124 insertions(+), 7 deletions(-)

diff --git a/src/test/java/org/cactoos/io/OutputToTest.java b/src/test/java/org/cactoos/io/OutputToTest.java
index 6bfda3134a..74e1c2cfb7 100644
--- a/src/test/java/org/cactoos/io/OutputToTest.java
+++ b/src/test/java/org/cactoos/io/OutputToTest.java
@@ -24,16 +24,20 @@
 package org.cactoos.io;
 
 import java.io.IOException;
-import java.nio.file.Files;
+import java.io.StringWriter;
+import java.nio.charset.StandardCharsets;
 import java.nio.file.Path;
 import org.cactoos.matchers.InputHasContent;
 import org.hamcrest.MatcherAssert;
+import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
 
 /**
  * Test case for {@link OutputTo}.
  *
  * @author Yegor Bugayenko (yegor256@gmail.com)
+ * @author Roman Proshin (roman@proshin.org)
  * @version $Id$
  * @since 0.15
  * @checkstyle JavadocMethodCheck (500 lines)
@@ -41,32 +45,145 @@
  */
 public final class OutputToTest {
 
+    /**
+     * Temporary folder.
+     */
+    @Rule
+    public TemporaryFolder folder = new TemporaryFolder();
+
     @Test
-    public void writesSimplePathContent() throws IOException {
-        final Path temp = Files.createTempDirectory("cactoos-1");
+    public void writesIntoPath() throws IOException {
+        final Path temp = this.folder.newFolder("cactoos-1").toPath();
         final Path path = temp.resolve("one/two/three/file.txt");
         final String content = "Hello, товарищ!";
         new LengthOf(new TeeInput(content, new OutputTo(path))).intValue();
         MatcherAssert.assertThat(
-            "Can't write path content",
+            "Can't write into path",
             new InputOf(path),
             new InputHasContent(content)
         );
     }
 
     @Test
-    public void writesSimpleFileContent() throws IOException {
-        final Path temp = Files.createTempDirectory("cactoos-2");
+    public void writesIntoFile() throws IOException {
+        final Path temp = this.folder.newFolder("cactoos-2").toPath();
         final Path path = temp.resolve("a/b/c/file.txt");
         final String txt = "Hello, друг!";
         new LengthOf(
             new TeeInput(txt, new SyncOutput(new OutputTo(path.toFile())))
         ).intValue();
         MatcherAssert.assertThat(
-            "Can't write file content",
+            "Can't write into file",
             new InputOf(path.toFile()),
             new InputHasContent(txt)
         );
     }
 
+    @Test
+    public void writesIntoWriter() {
+        final String txt = "Hello, writer!";
+        final StringWriter output = new StringWriter();
+        new LengthOf(new TeeInput(txt, new OutputTo(output))).intValue();
+        MatcherAssert.assertThat(
+            "Can't write into writer",
+            new InputOf(output.getBuffer()),
+            new InputHasContent(txt)
+        );
+    }
+
+    @Test
+    public void writesIntoWriterWithCharset() {
+        final String txt = "Hello, writer with charset!";
+        final StringWriter output = new StringWriter();
+        new LengthOf(
+            new TeeInput(txt, new OutputTo(output, StandardCharsets.UTF_8))
+        ).intValue();
+        MatcherAssert.assertThat(
+            "Can't write into writer with charset",
+            new InputOf(output.getBuffer()),
+            new InputHasContent(txt)
+        );
+    }
+
+    @Test
+    public void writesIntoWriterWithCharsetByName() {
+        final String txt = "Hello, writer with charset by name!";
+        final StringWriter output = new StringWriter();
+        new LengthOf(
+            new TeeInput(txt, new OutputTo(output, StandardCharsets.UTF_8))
+        ).intValue();
+        MatcherAssert.assertThat(
+            "Can't write into writer with charset by name",
+            new InputOf(output.getBuffer()),
+            new InputHasContent(txt)
+        );
+    }
+
+    @Test
+    public void writesIntoWriterWithCharsetAndSize() {
+        final String txt = "Hello, writer with charset and size!";
+        final StringWriter output = new StringWriter();
+        new LengthOf(
+            new TeeInput(
+                txt,
+                new OutputTo(output, StandardCharsets.UTF_8, 1)
+            )
+        ).intValue();
+        MatcherAssert.assertThat(
+            "Can't write into writer with charset and size",
+            new InputOf(output.getBuffer()),
+            new InputHasContent(txt)
+        );
+    }
+
+    @Test
+    public void writesIntoWriterWithSize() {
+        final String txt = "Hello, writer with size!";
+        final StringWriter output = new StringWriter();
+        new LengthOf(
+            new TeeInput(
+                txt,
+                new OutputTo(output, 1)
+            )
+        ).intValue();
+        MatcherAssert.assertThat(
+            "Can't write into writer with size",
+            new InputOf(output.getBuffer()),
+            new InputHasContent(txt)
+        );
+    }
+
+    @Test
+    public void writesIntoWriterWithCharsetByNameAndSize() {
+        final String txt = "Hello, writer with charset by name and size!";
+        final StringWriter output = new StringWriter();
+        new LengthOf(
+            new TeeInput(
+                txt,
+                new OutputTo(output, StandardCharsets.UTF_8.name(), 1)
+            )
+        ).intValue();
+        MatcherAssert.assertThat(
+            "Can't write into writer with charset by name and size",
+            new InputOf(output.getBuffer()),
+            new InputHasContent(txt)
+        );
+    }
+
+    @Test
+    public void writesIntoWriterWithDecoderAndSize() {
+        final String txt = "Hello, writer with decoder and size!";
+        final StringWriter output = new StringWriter();
+        new LengthOf(
+            new TeeInput(
+                txt,
+                new OutputTo(output, StandardCharsets.UTF_8.newDecoder(), 1)
+            )
+        ).intValue();
+        MatcherAssert.assertThat(
+            "Can't write into writer with decoder and size",
+            new InputOf(output.getBuffer()),
+            new InputHasContent(txt)
+        );
+    }
 }