1 files changed, 93 insertions, 0 deletions
diff --git a/app/src/test/java/app/passwordstore/ui/list/ListModelTest.kt b/app/src/test/java/app/passwordstore/ui/list/ListModelTest.kt
new file mode 100644
index 00000000..60e3020a
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+++ b/app/src/test/java/app/passwordstore/ui/list/ListModelTest.kt
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+package app.passwordstore.ui.list
+
+import java.io.File
+import java.nio.file.Files
+import kotlin.test.AfterTest
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class ListModelTest {
+
+  private val root = Files.createTempDirectory("aps").toFile()
+
+  @AfterTest
+  fun cleanUp() {
+    root.deleteRecursively()
+  }
+
+  private fun file(path: String) =
+    File(root, path).apply {
+      parentFile!!.mkdirs()
+      writeText("x")
+    }
+
+  private fun folder(path: String) = File(root, path).apply { mkdirs() }
+
+  @Test
+  fun openingAChildFolderPushesIt() {
+    assertEquals(0 to listOf("work"), folderMoves("", "work"))
+  }
+
+  @Test
+  fun breadcrumbJumpsOnlyPop() {
+    assertEquals(1 to emptyList<String>(), folderMoves("work/servers", "work"))
+    assertEquals(2 to emptyList<String>(), folderMoves("work/servers", ""))
+  }
+
+  @Test
+  fun searchResultsRebuildTheStackFromTheSharedParent() {
+    assertEquals(1 to listOf("personal", "personal/mail"), folderMoves("work", "personal/mail"))
+    assertEquals(
+      0 to listOf("work/servers", "work/servers/eu"),
+      folderMoves("work", "work/servers/eu"),
+    )
+  }
+
+  @Test
+  fun sameFolderMovesNothing() {
+    assertEquals(0 to emptyList<String>(), folderMoves("work", "work"))
+  }
+
+  @Test
+  fun browsingShowsNamesAndFolderCounts() {
+    val work = folder("work")
+    file("work/mail.gpg")
+    file("work/notes.txt")
+    folder("work/servers")
+    val site = file("site.gpg")
+
+    val rows = listRows(listOf(work, site), root)
+
+    assertEquals(listOf(ListRow(work.absolutePath, "work", null, 2)), rows.folders)
+    assertEquals(listOf(ListRow(site.absolutePath, "site", null, 0)), rows.entries)
+  }
+
+  @Test
+  fun searchResultsShowWhereTheyAre() {
+    val servers = folder("work/servers")
+    val vpn = file("work/vpn.gpg")
+
+    val rows = listRows(listOf(vpn, servers), root)
+
+    assertEquals(listOf(ListRow(servers.absolutePath, "work/servers", null, 0)), rows.folders)
+    assertEquals(listOf(ListRow(vpn.absolutePath, "vpn", "work", 0)), rows.entries)
+  }
+
+  @Test
+  fun keepsTheGivenOrderInsideEachGroup() {
+    val b = file("b.gpg")
+    val a = file("a.gpg")
+    val z = folder("z")
+    val y = folder("y")
+
+    val rows = listRows(listOf(b, z, a, y), root)
+
+    assertEquals(listOf(z.absolutePath, y.absolutePath), rows.folders.map { it.path })
+    assertEquals(listOf(b.absolutePath, a.absolutePath), rows.entries.map { it.path })
+  }
+}