Add post parsing, URL helpers, health check and double-OK logic with tests

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 110 insertions, 0 deletions

diff --git a/app/src/test/java/mygram/droid/LogicTest.java b/app/src/test/java/mygram/droid/LogicTest.java
new file mode 100644
index 0000000..e807725
--- /dev/null
+++ b/app/src/test/java/mygram/droid/LogicTest.java
@@ -0,0 +1,110 @@
+/*
+ * mygram-droid: Android TV client for Foldergram.
+ * Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+
+package mygram.droid;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+import org.json.JSONObject;
+import org.junit.Test;
+
+import java.util.List;
+
+public class LogicTest {
+	private static final String BASE = "http://192.0.2.10:4141";
+
+	@Test
+	public void parsesSinglePhoto() throws Exception {
+		Post p = new Post(new JSONObject("{\"id\":7,\"folderSlug\":\"trips\",\"folderName\":\"Trips\","
+				+ "\"mediaType\":\"image\",\"width\":1080,\"height\":1920,\"durationMs\":null,"
+				+ "\"thumbnailUrl\":\"/thumbnails/ab/x.webp?v=1\",\"previewUrl\":\"/previews/ab/x.webp?v=1\","
+				+ "\"postType\":\"single\",\"itemCount\":1}"), BASE);
+		assertEquals(7, p.id);
+		assertEquals("trips", p.folderSlug);
+		assertEquals(1, p.media.size());
+		Post.Media m = p.media.get(0);
+		assertFalse(m.video);
+		assertEquals(0, m.durationMs);
+		assertEquals(1080, m.width);
+		assertEquals(BASE + "/thumbnails/ab/x.webp?v=1", m.thumbnailUrl);
+		assertEquals(BASE + "/previews/ab/x.webp?v=1", m.previewUrl);
+	}
+
+	@Test
+	public void parsesVideo() throws Exception {
+		Post p = new Post(new JSONObject("{\"id\":8,\"mediaType\":\"video\",\"durationMs\":41633,"
+				+ "\"thumbnailUrl\":\"/thumbnails/cd/y.webp\",\"previewUrl\":\"/previews/cd/y.mp4\"}"), BASE);
+		Post.Media m = p.media.get(0);
+		assertTrue(m.video);
+		assertEquals(41633, m.durationMs);
+		assertEquals(BASE + "/previews/cd/y.mp4", m.previewUrl);
+	}
+
+	@Test
+	public void parsesCarouselSlidesInOrder() throws Exception {
+		Post p = new Post(new JSONObject("{\"id\":9,\"mediaType\":\"image\",\"postType\":\"carousel\","
+				+ "\"thumbnailUrl\":\"/thumbnails/a.webp\",\"previewUrl\":\"/previews/a.webp\",\"mediaItems\":["
+				+ "{\"imageId\":1,\"mediaType\":\"image\",\"thumbnailUrl\":\"/thumbnails/a.webp\",\"previewUrl\":\"/previews/a.webp\"},"
+				+ "{\"imageId\":2,\"mediaType\":\"video\",\"durationMs\":5000,\"thumbnailUrl\":\"/thumbnails/b.webp\",\"previewUrl\":\"/previews/b.mp4\"}]}"),
+				BASE);
+		assertEquals(2, p.media.size());
+		assertFalse(p.media.get(0).video);
+		assertTrue(p.media.get(1).video);
+		assertEquals(BASE + "/previews/b.mp4", p.media.get(1).previewUrl);
+	}
+
+	@Test
+	public void parsesPageAndNullUrl() throws Exception {
+		List<Post> posts = Post.list(new JSONObject("{\"items\":[{\"id\":1,\"mediaType\":\"image\","
+				+ "\"thumbnailUrl\":null,\"previewUrl\":\"/previews/z.webp\"}],\"hasMore\":false}"), BASE);
+		assertEquals(1, posts.size());
+		assertNull(posts.get(0).media.get(0).thumbnailUrl);
+		assertEquals(0, Post.list(new JSONObject("{}"), BASE).size());
+	}
+
+	@Test
+	public void normalizesServerUrls() {
+		assertEquals("http://192.0.2.10:4141", Api.normalize(" 192.0.2.10:4141/ "));
+		assertEquals("http://foldergram.example.org:4141", Api.normalize("http://foldergram.example.org:4141//"));
+		assertEquals("https://foldergram.example.org", Api.normalize("https://foldergram.example.org"));
+	}
+
+	@Test
+	public void resolvesMediaPaths() {
+		assertEquals(BASE + "/icon-192.png", Api.resolve(BASE, "/icon-192.png"));
+		assertNull(Api.resolve(BASE, null));
+	}
+
+	@Test
+	public void detectsFoldergramHealth() {
+		assertTrue(Discovery.isFoldergram("{\"ok\":true,\"timestamp\":\"t\",\"storage\":{\"available\":true}}"));
+		assertFalse(Discovery.isFoldergram("{\"ok\":true}"));
+		assertFalse(Discovery.isFoldergram("{\"ok\":false,\"storage\":{}}"));
+		assertFalse(Discovery.isFoldergram("<html>router login</html>"));
+	}
+
+	@Test
+	public void tellsDoublePressFromSingle() {
+		DoubleOk d = new DoubleOk();
+		assertFalse(d.press(1000));
+		assertTrue(d.press(1250));
+		assertFalse("a double press resets", d.press(1400));
+		assertFalse(d.press(2000));
+		assertFalse("301 ms is too slow", d.press(2301));
+	}
+}