Merge branch 'release-0.9.6'
[Sone.git] / src / test / java / net / pterodactylus / sone / text / SoneTextParserTest.java
index 76f3755..6483171 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Sone - SoneTextParserTest.java - Copyright © 2011–2013 David Roden
+ * Sone - SoneTextParserTest.java - Copyright © 2011–2016 David Roden
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 
 package net.pterodactylus.sone.text;
 
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.isIn;
+import static org.hamcrest.Matchers.notNullValue;
+
 import java.io.IOException;
-import java.io.StringReader;
-import java.util.Arrays;
+import java.util.Collection;
 
-import junit.framework.TestCase;
+import net.pterodactylus.sone.data.Post;
 import net.pterodactylus.sone.data.Sone;
+import net.pterodactylus.sone.data.impl.IdOnlySone;
+import net.pterodactylus.sone.database.PostProvider;
 import net.pterodactylus.sone.database.SoneProvider;
 
+import com.google.common.base.Function;
+import com.google.common.base.Optional;
+import org.junit.Test;
+
 /**
  * JUnit test case for {@link SoneTextParser}.
  *
  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  */
-public class SoneTextParserTest extends TestCase {
+public class SoneTextParserTest {
 
-       //
-       // ACTIONS
-       //
+       private final SoneTextParser soneTextParser = new SoneTextParser(null, null);
 
-       /**
-        * Tests basic plain-text operation of the parser.
-        *
-        * @throws IOException
-        *             if an I/O error occurs
-        */
        @SuppressWarnings("static-method")
+       @Test
        public void testPlainText() throws IOException {
-               SoneTextParser soneTextParser = new SoneTextParser(null, null);
-               Iterable<Part> parts;
-
                /* check basic operation. */
-               parts = soneTextParser.parse(null, new StringReader("Test."));
-               assertNotNull("Parts", parts);
-               assertEquals("Part Text", "Test.", convertText(parts, PlainTextPart.class));
+               Iterable<Part> parts = soneTextParser.parse("Test.", null);
+               assertThat("Parts", parts, notNullValue());
+               assertThat("Part Text", convertText(parts, PlainTextPart.class), is("Test."));
 
                /* check empty lines at start and end. */
-               parts = soneTextParser.parse(null, new StringReader("\nTest.\n\n"));
-               assertNotNull("Parts", parts);
-               assertEquals("Part Text", "Test.", convertText(parts, PlainTextPart.class));
+               parts = soneTextParser.parse("\nTest.\n\n", null);
+               assertThat("Parts", parts, notNullValue());
+               assertThat("Part Text", convertText(parts, PlainTextPart.class), is("Test."));
 
                /* check duplicate empty lines in the text. */
-               parts = soneTextParser.parse(null, new StringReader("\nTest.\n\n\nTest."));
-               assertNotNull("Parts", parts);
-               assertEquals("Part Text", "Test.\n\nTest.", convertText(parts, PlainTextPart.class));
+               parts = soneTextParser.parse("\nTest.\n\n\nTest.", null);
+               assertThat("Parts", parts, notNullValue());
+               assertThat("Part Text", convertText(parts, PlainTextPart.class), is("Test.\n\nTest."));
+       }
+
+       @Test
+       public void consecutiveLinesAreSeparatedByLinefeed() {
+               Iterable<Part> parts = soneTextParser.parse("Text.\nText", null);
+               assertThat("Part Text", convertText(parts), is("Text.\nText"));
+       }
+
+       @Test
+       public void freenetLinksHaveTheFreenetPrefixRemoved() {
+               Iterable<Part> parts = soneTextParser.parse("freenet:KSK@gpl.txt", null);
+               assertThat("Part Text", convertText(parts), is("[KSK@gpl.txt|gpl.txt|gpl.txt]"));
+       }
+
+       @Test
+       public void onlyTheFirstItemInALineIsPrefixedWithALineBreak() {
+               Iterable<Part> parts = soneTextParser.parse("Text.\nKSK@gpl.txt and KSK@gpl.txt", null);
+               assertThat("Part Text", convertText(parts), is("Text.\n[KSK@gpl.txt|gpl.txt|gpl.txt] and [KSK@gpl.txt|gpl.txt|gpl.txt]"));
+       }
+
+       @Test
+       public void soneLinkWithTooShortSoneIdIsRenderedAsPlainText() {
+               Iterable<Part> parts = soneTextParser.parse("sone://too-short", null);
+               assertThat("Part Text", convertText(parts), is("sone://too-short"));
+       }
+
+       @Test
+       public void soneLinkIsRenderedCorrectlyIfSoneIsNotPresent() {
+               SoneTextParser parser = new SoneTextParser(new AbsentSoneProvider(), null);
+               Iterable<Part> parts = parser.parse("sone://DAxKQzS48mtaQc7sUVHIgx3fnWZPQBz0EueBreUVWrU", null);
+               assertThat("Part Text", convertText(parts), is("[Sone|DAxKQzS48mtaQc7sUVHIgx3fnWZPQBz0EueBreUVWrU]"));
+       }
+
+       @Test
+       public void postLinkIsRenderedAsPlainTextIfPostIdIsTooShort() {
+               Iterable<Part> parts = soneTextParser.parse("post://too-short", null);
+               assertThat("Part Text", convertText(parts), is("post://too-short"));
+       }
+
+       @Test
+       public void postLinkIsRenderedCorrectlyIfPostIsPresent() {
+               SoneTextParser parser = new SoneTextParser(null, new TestPostProvider());
+               Iterable<Part> parts = parser.parse("post://f3757817-b45a-497a-803f-9c5aafc10dc6", null);
+               assertThat("Part Text", convertText(parts), is("[Post|f3757817-b45a-497a-803f-9c5aafc10dc6|text]"));
+       }
+
+       @Test
+       public void postLinkIsRenderedAsPlainTextIfPostIsAbsent() {
+               SoneTextParser parser = new SoneTextParser(null, new AbsentPostProvider());
+               Iterable<Part> parts = parser.parse("post://f3757817-b45a-497a-803f-9c5aafc10dc6", null);
+               assertThat("Part Text", convertText(parts), is("post://f3757817-b45a-497a-803f-9c5aafc10dc6"));
+       }
+
+       @Test
+       public void nameOfFreenetLinkDoesNotContainUrlParameters() {
+           Iterable<Part> parts = soneTextParser.parse("KSK@gpl.txt?max-size=12345", null);
+               assertThat("Part Text", convertText(parts), is("[KSK@gpl.txt?max-size=12345|gpl.txt|gpl.txt]"));
+       }
+
+       @Test
+       public void trailingSlashInFreenetLinkIsRemovedForName() {
+               Iterable<Part> parts = soneTextParser.parse("KSK@gpl.txt/", null);
+               assertThat("Part Text", convertText(parts), is("[KSK@gpl.txt/|gpl.txt|gpl.txt]"));
+       }
+
+       @Test
+       public void lastMetaStringOfFreenetLinkIsUsedAsName() {
+               Iterable<Part> parts = soneTextParser.parse("CHK@qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU,aztSUkT-VT1dWvfSUt9YpfyW~Flmf5yXpBnIE~v8sAg,AAMC--8/COPYING", null);
+               assertThat("Part Text", convertText(parts), is("[CHK@qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU,aztSUkT-VT1dWvfSUt9YpfyW~Flmf5yXpBnIE~v8sAg,AAMC--8/COPYING|COPYING|COPYING]"));
+       }
+
+       @Test
+       public void freenetLinkWithoutMetaStringsAndDocNameGetsFirstNineCharactersOfKeyAsName() {
+               Iterable<Part> parts = soneTextParser.parse("CHK@qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU,aztSUkT-VT1dWvfSUt9YpfyW~Flmf5yXpBnIE~v8sAg,AAMC--8", null);
+               assertThat("Part Text", convertText(parts), is("[CHK@qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU,aztSUkT-VT1dWvfSUt9YpfyW~Flmf5yXpBnIE~v8sAg,AAMC--8|CHK@qM1nm|CHK@qM1nm]"));
+       }
+
+       @Test
+       public void malformedKeyIsRenderedAsPlainText() {
+               Iterable<Part> parts = soneTextParser.parse("CHK@qM1nmgU", null);
+               assertThat("Part Text", convertText(parts), is("CHK@qM1nmgU"));
+       }
+
+       @Test
+       public void httpsLinkHasItsPathsShortened() {
+               Iterable<Part> parts = soneTextParser.parse("https://test.test/some-long-path/file.txt", null);
+               assertThat("Part Text", convertText(parts), is("[https://test.test/some-long-path/file.txt|test.test/…/file.txt|test.test/…/file.txt]"));
+       }
+
+       @Test
+       public void httpLinksHaveTheirLastSlashRemoved() {
+           Iterable<Part> parts = soneTextParser.parse("http://test.test/test/", null);
+               assertThat("Part Text", convertText(parts), is("[http://test.test/test/|test.test/…|test.test/…]"));
+       }
+
+       @Test
+       public void wwwPrefixIsRemovedForHostnameWithTwoDotsAndNoPath() {
+               Iterable<Part> parts = soneTextParser.parse("http://www.test.test", null);
+               assertThat("Part Text", convertText(parts), is("[http://www.test.test|test.test|test.test]"));
+       }
+
+       @Test
+       public void wwwPrefixIsRemovedForHostnameWithTwoDotsAndAPath() {
+               Iterable<Part> parts = soneTextParser.parse("http://www.test.test/test.html", null);
+               assertThat("Part Text", convertText(parts), is("[http://www.test.test/test.html|test.test/test.html|test.test/test.html]"));
+       }
+
+       @Test
+       public void hostnameIsKeptIntactIfNotBeginningWithWww() {
+               Iterable<Part> parts = soneTextParser.parse("http://test.test.test/test.html", null);
+               assertThat("Part Text", convertText(parts), is("[http://test.test.test/test.html|test.test.test/test.html|test.test.test/test.html]"));
+       }
+
+       @Test
+       public void hostnameWithOneDotButNoSlashIsKeptIntact() {
+               Iterable<Part> parts = soneTextParser.parse("http://test.test", null);
+               assertThat("Part Text", convertText(parts), is("[http://test.test|test.test|test.test]"));
+       }
+
+       @Test
+       public void urlParametersAreRemovedForHttpLinks() {
+               Iterable<Part> parts = soneTextParser.parse("http://test.test?foo=bar", null);
+               assertThat("Part Text", convertText(parts), is("[http://test.test?foo=bar|test.test|test.test]"));
+       }
+
+       @Test
+       public void emptyStringIsParsedCorrectly() {
+               Iterable<Part> parts = soneTextParser.parse("", null);
+               assertThat("Part Text", convertText(parts), is(""));
+       }
+
+       @Test
+       public void linksAreParsedInCorrectOrder() {
+               Iterable<Part> parts = soneTextParser.parse("KSK@ CHK@", null);
+               assertThat("Part Text", convertText(parts), is("KSK@ CHK@"));
+       }
+
+       @Test
+       public void sskLinkWithoutContextIsNotTrusted() {
+               Iterable<Part> parts = soneTextParser.parse("SSK@qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU,aztSUkT-VT1dWvfSUt9YpfyW~Flmf5yXpBnIE~v8sAg,AAMC--8/test", null);
+               assertThat("Part Text", convertText(parts), is("[SSK@qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU,aztSUkT-VT1dWvfSUt9YpfyW~Flmf5yXpBnIE~v8sAg,AAMC--8/test|test|test]"));
+       }
+
+       @Test
+       public void sskLinkWithContextWithoutSoneIsNotTrusted() {
+               SoneTextParserContext context = new SoneTextParserContext(null);
+               Iterable<Part> parts = soneTextParser.parse("SSK@qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU,aztSUkT-VT1dWvfSUt9YpfyW~Flmf5yXpBnIE~v8sAg,AAMC--8/test", context);
+               assertThat("Part Text", convertText(parts), is("[SSK@qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU,aztSUkT-VT1dWvfSUt9YpfyW~Flmf5yXpBnIE~v8sAg,AAMC--8/test|test|test]"));
+       }
+
+       @Test
+       public void sskLinkWithContextWithDifferentSoneIsNotTrusted() {
+               SoneTextParserContext context = new SoneTextParserContext(new IdOnlySone("DAxKQzS48mtaQc7sUVHIgx3fnWZPQBz0EueBreUVWrU"));
+               Iterable<Part> parts = soneTextParser.parse("SSK@qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU,aztSUkT-VT1dWvfSUt9YpfyW~Flmf5yXpBnIE~v8sAg,AAMC--8/test", context);
+               assertThat("Part Text", convertText(parts), is("[SSK@qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU,aztSUkT-VT1dWvfSUt9YpfyW~Flmf5yXpBnIE~v8sAg,AAMC--8/test|test|test]"));
+       }
+
+       @Test
+       public void sskLinkWithContextWithCorrectSoneIsTrusted() {
+               SoneTextParserContext context = new SoneTextParserContext(new IdOnlySone("qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU"));
+               Iterable<Part> parts = soneTextParser.parse("SSK@qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU,aztSUkT-VT1dWvfSUt9YpfyW~Flmf5yXpBnIE~v8sAg,AAMC--8/test", context);
+               assertThat("Part Text", convertText(parts), is("[SSK@qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU,aztSUkT-VT1dWvfSUt9YpfyW~Flmf5yXpBnIE~v8sAg,AAMC--8/test|trusted|test|test]"));
+       }
+
+       @Test
+       public void uskLinkWithContextWithCorrectSoneIsTrusted() {
+               SoneTextParserContext context = new SoneTextParserContext(new IdOnlySone("qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU"));
+               Iterable<Part> parts = soneTextParser.parse("USK@qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU,aztSUkT-VT1dWvfSUt9YpfyW~Flmf5yXpBnIE~v8sAg,AAMC--8/test/0", context);
+               assertThat("Part Text", convertText(parts), is("[USK@qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU,aztSUkT-VT1dWvfSUt9YpfyW~Flmf5yXpBnIE~v8sAg,AAMC--8/test/0|trusted|test|test]"));
        }
 
-       /**
-        * Tests parsing of KSK links.
-        *
-        * @throws IOException
-        *             if an I/O error occurs
-        */
        @SuppressWarnings("static-method")
+       @Test
        public void testKSKLinks() throws IOException {
-               SoneTextParser soneTextParser = new SoneTextParser(null, null);
-               Iterable<Part> parts;
-
                /* check basic links. */
-               parts = soneTextParser.parse(null, new StringReader("KSK@gpl.txt"));
-               assertNotNull("Parts", parts);
-               assertEquals("Part Text", "[KSK@gpl.txt|gpl.txt|gpl.txt]", convertText(parts, FreenetLinkPart.class));
+               Iterable<Part> parts = soneTextParser.parse("KSK@gpl.txt", null);
+               assertThat("Parts", parts, notNullValue());
+               assertThat("Part Text", convertText(parts, FreenetLinkPart.class), is("[KSK@gpl.txt|gpl.txt|gpl.txt]"));
 
                /* check embedded links. */
-               parts = soneTextParser.parse(null, new StringReader("Link is KSK@gpl.txt\u200b."));
-               assertNotNull("Parts", parts);
-               assertEquals("Part Text", "Link is [KSK@gpl.txt|gpl.txt|gpl.txt]\u200b.", convertText(parts, PlainTextPart.class, FreenetLinkPart.class));
+               parts = soneTextParser.parse("Link is KSK@gpl.txt\u200b.", null);
+               assertThat("Parts", parts, notNullValue());
+               assertThat("Part Text", convertText(parts, PlainTextPart.class, FreenetLinkPart.class), is("Link is [KSK@gpl.txt|gpl.txt|gpl.txt]\u200b."));
 
                /* check embedded links and line breaks. */
-               parts = soneTextParser.parse(null, new StringReader("Link is KSK@gpl.txt\nKSK@test.dat\n"));
-               assertNotNull("Parts", parts);
-               assertEquals("Part Text", "Link is [KSK@gpl.txt|gpl.txt|gpl.txt]\n[KSK@test.dat|test.dat|test.dat]", convertText(parts, PlainTextPart.class, FreenetLinkPart.class));
+               parts = soneTextParser.parse("Link is KSK@gpl.txt\nKSK@test.dat\n", null);
+               assertThat("Parts", parts, notNullValue());
+               assertThat("Part Text", convertText(parts, PlainTextPart.class, FreenetLinkPart.class), is("Link is [KSK@gpl.txt|gpl.txt|gpl.txt]\n[KSK@test.dat|test.dat|test.dat]"));
        }
 
-       /**
-        * Test case for a bug that was discovered in 0.6.7.
-        *
-        * @throws IOException
-        *             if an I/O error occurs
-        */
        @SuppressWarnings({ "synthetic-access", "static-method" })
+       @Test
        public void testEmptyLinesAndSoneLinks() throws IOException {
                SoneTextParser soneTextParser = new SoneTextParser(new TestSoneProvider(), null);
-               Iterable<Part> parts;
 
                /* check basic links. */
-               parts = soneTextParser.parse(null, new StringReader("Some text.\n\nLink to sone://DAxKQzS48mtaQc7sUVHIgx3fnWZPQBz0EueBreUVWrU and stuff."));
-               assertNotNull("Parts", parts);
-               assertEquals("Part Text", "Some text.\n\nLink to [Sone|DAxKQzS48mtaQc7sUVHIgx3fnWZPQBz0EueBreUVWrU] and stuff.", convertText(parts, PlainTextPart.class, SonePart.class));
+               Iterable<Part> parts = soneTextParser.parse("Some text.\n\nLink to sone://DAxKQzS48mtaQc7sUVHIgx3fnWZPQBz0EueBreUVWrU and stuff.", null);
+               assertThat("Parts", parts, notNullValue());
+               assertThat("Part Text", convertText(parts, PlainTextPart.class, SonePart.class), is("Some text.\n\nLink to [Sone|DAxKQzS48mtaQc7sUVHIgx3fnWZPQBz0EueBreUVWrU] and stuff."));
        }
 
-       /**
-        * Test for a bug discovered in Sone 0.8.4 where a plain “http://” would be
-        * parsed into a link.
-        *
-        * @throws IOException
-        *             if an I/O error occurs
-        */
        @SuppressWarnings({ "synthetic-access", "static-method" })
+       @Test
        public void testEmpyHttpLinks() throws IOException {
                SoneTextParser soneTextParser = new SoneTextParser(new TestSoneProvider(), null);
-               Iterable<Part> parts;
 
                /* check empty http links. */
-               parts = soneTextParser.parse(null, new StringReader("Some text. Empty link: http:// – nice!"));
-               assertNotNull("Parts", parts);
-               assertEquals("Part Text", "Some text. Empty link: http:// – nice!", convertText(parts, PlainTextPart.class));
+               Iterable<Part> parts = soneTextParser.parse("Some text. Empty link: http:// – nice!", null);
+               assertThat("Parts", parts, notNullValue());
+               assertThat("Part Text", convertText(parts, PlainTextPart.class), is("Some text. Empty link: http:// – nice!"));
+       }
+
+       @Test
+       public void httpLinkWithoutParensEndsAtNextClosingParen() {
+               Iterable<Part> parts = soneTextParser.parse("Some text (and a link: http://example.sone/abc) – nice!", null);
+               assertThat("Parts", parts, notNullValue());
+               assertThat("Part Text", convertText(parts, PlainTextPart.class, LinkPart.class), is("Some text (and a link: [http://example.sone/abc|example.sone/abc|example.sone/abc]) – nice!"));
+       }
+
+       @Test
+       public void uskLinkEndsAtFirstNonNumericNonSlashCharacterAfterVersionNumber() {
+               Iterable<Part> parts = soneTextParser.parse("Some link (USK@qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU,aztSUkT-VT1dWvfSUt9YpfyW~Flmf5yXpBnIE~v8sAg,AAMC--8/test/0). Nice", null);
+               assertThat("Parts", parts, notNullValue());
+               assertThat("Part Text", convertText(parts), is("Some link ([USK@qM1nmgU-YUnIttmEhqjTl7ifAF3Z6o~5EPwQW03uEQU,aztSUkT-VT1dWvfSUt9YpfyW~Flmf5yXpBnIE~v8sAg,AAMC--8/test/0|test|test]). Nice"));
+       }
+
+       @Test
+       public void httpLinkWithOpenedAndClosedParensEndsAtNextClosingParen() {
+               Iterable<Part> parts = soneTextParser.parse("Some text (and a link: http://example.sone/abc_(def)) – nice!", null);
+               assertThat("Parts", parts, notNullValue());
+               assertThat("Part Text", convertText(parts, PlainTextPart.class, LinkPart.class), is("Some text (and a link: [http://example.sone/abc_(def)|example.sone/abc_(def)|example.sone/abc_(def)]) – nice!"));
        }
 
-       //
-       // PRIVATE METHODS
-       //
+       @Test
+       public void punctuationIsIgnoredAtEndOfLinkBeforeWhitespace() {
+               SoneTextParser soneTextParser = new SoneTextParser(null, null);
+               Iterable<Part> parts = soneTextParser.parse("Some text and a link: http://example.sone/abc. Nice!", null);
+               assertThat("Parts", parts, notNullValue());
+               assertThat("Part Text", convertText(parts, PlainTextPart.class, LinkPart.class), is("Some text and a link: [http://example.sone/abc|example.sone/abc|example.sone/abc]. Nice!"));
+       }
+
+       @Test
+       public void multiplePunctuationCharactersAreIgnoredAtEndOfLinkBeforeWhitespace() {
+               Iterable<Part> parts = soneTextParser.parse("Some text and a link: http://example.sone/abc... Nice!", null);
+               assertThat("Parts", parts, notNullValue());
+               assertThat("Part Text", convertText(parts, PlainTextPart.class, LinkPart.class), is("Some text and a link: [http://example.sone/abc|example.sone/abc|example.sone/abc]... Nice!"));
+       }
+
+       @Test
+       public void commasAreIgnoredAtEndOfLinkBeforeWhitespace() {
+               SoneTextParser soneTextParser = new SoneTextParser(null, null);
+               Iterable<Part> parts = soneTextParser.parse("Some text and a link: http://example.sone/abc, nice!", null);
+               assertThat("Parts", parts, notNullValue());
+               assertThat("Part Text", convertText(parts, PlainTextPart.class, LinkPart.class), is("Some text and a link: [http://example.sone/abc|example.sone/abc|example.sone/abc], nice!"));
+       }
 
        /**
         * Converts all given {@link Part}s into a string, validating that the
@@ -143,16 +331,9 @@ public class SoneTextParserTest extends TestCase {
        private static String convertText(Iterable<Part> parts, Class<?>... validClasses) {
                StringBuilder text = new StringBuilder();
                for (Part part : parts) {
-                       assertNotNull("Part", part);
-                       boolean classValid = validClasses.length == 0;
-                       for (Class<?> validClass : validClasses) {
-                               if (validClass.isAssignableFrom(part.getClass())) {
-                                       classValid = true;
-                                       break;
-                               }
-                       }
-                       if (!classValid) {
-                               fail("Part’s Class (" + part.getClass() + ") is not one of " + Arrays.toString(validClasses));
+                       assertThat("Part", part, notNullValue());
+                       if (validClasses.length != 0) {
+                               assertThat("Part’s class", part.getClass(), isIn(validClasses));
                        }
                        if (part instanceof PlainTextPart) {
                                text.append(((PlainTextPart) part).getText());
@@ -165,6 +346,9 @@ public class SoneTextParserTest extends TestCase {
                        } else if (part instanceof SonePart) {
                                SonePart sonePart = (SonePart) part;
                                text.append("[Sone|").append(sonePart.getSone().getId()).append(']');
+                       } else if (part instanceof PostPart) {
+                               PostPart postPart = (PostPart) part;
+                               text.append("[Post|").append(postPart.getPost().getId()).append("|").append(postPart.getPost().getText()).append("]");
                        }
                }
                return text.toString();
@@ -177,21 +361,128 @@ public class SoneTextParserTest extends TestCase {
         */
        private static class TestSoneProvider implements SoneProvider {
 
+               @Override
+               public Function<String, Optional<Sone>> soneLoader() {
+                       return new Function<String, Optional<Sone>>() {
+                               @Override
+                               public Optional<Sone> apply(String soneId) {
+                                       return getSone(soneId);
+                               }
+                       };
+               }
+
                /**
                 * {@inheritDoc}
                 */
                @Override
-               public Sone getSone(final String soneId) {
-                       return new Sone(soneId, false) {
+               public Optional<Sone> getSone(final String soneId) {
+                       return Optional.<Sone>of(new IdOnlySone(soneId));
+               }
+
+               /**
+                * {@inheritDocs}
+                */
+               @Override
+               public Collection<Sone> getSones() {
+                       return null;
+               }
+
+               /**
+                * {@inheritDocs}
+                */
+               @Override
+               public Collection<Sone> getLocalSones() {
+                       return null;
+               }
+
+               /**
+                * {@inheritDocs}
+                */
+               @Override
+               public Collection<Sone> getRemoteSones() {
+                       return null;
+               }
+
+       }
+
+       private static class AbsentSoneProvider extends TestSoneProvider {
+
+               @Override
+               public Optional<Sone> getSone(String soneId) {
+                       return Optional.absent();
+               }
+
+       }
+
+       private static class TestPostProvider implements PostProvider {
+
+               @Override
+               public Optional<Post> getPost(final String postId) {
+                       return Optional.<Post>of(new Post() {
+                               @Override
+                               public String getId() {
+                                       return postId;
+                               }
 
-                               /**
-                                * {@inheritDoc}
-                                */
                                @Override
-                               public String getName() {
-                                       return soneId;
+                               public boolean isLoaded() {
+                                       return false;
                                }
-                       };
+
+                               @Override
+                               public Sone getSone() {
+                                       return null;
+                               }
+
+                               @Override
+                               public Optional<String> getRecipientId() {
+                                       return null;
+                               }
+
+                               @Override
+                               public Optional<Sone> getRecipient() {
+                                       return null;
+                               }
+
+                               @Override
+                               public long getTime() {
+                                       return 0;
+                               }
+
+                               @Override
+                               public String getText() {
+                                       return "text";
+                               }
+
+                               @Override
+                               public boolean isKnown() {
+                                       return false;
+                               }
+
+                               @Override
+                               public Post setKnown(boolean known) {
+                                       return null;
+                               }
+                       });
+               }
+
+               @Override
+               public Collection<Post> getPosts(String soneId) {
+                       return null;
+               }
+
+               @Override
+               public Collection<Post> getDirectedPosts(String recipientId) {
+                       return null;
+               }
+
+       }
+
+       private static class AbsentPostProvider extends TestPostProvider {
+
+               @Override
+               public Optional<Post> getPost(String postId) {
+                       return Optional.absent();
                }
 
        }