diff --git a/src/components/image/ImageManager.svelte b/src/components/image/ImageManager.svelte
index aafd3e8..ed9f239 100644
--- a/src/components/image/ImageManager.svelte
+++ b/src/components/image/ImageManager.svelte
@@ -22,9 +22,9 @@
     <CropInline />
 
     <div class="crop-controls">
-      <Button label="Загрузить" icon={Upload} type="secondary" />
-      <Button label="Редактировать" icon={Reset} type="outline" />
-      <Button label="Сбросить" icon={Pencil} type="outline" />
+      <Button label="Загрузить" ariaLabel="Upload" icon={Upload} type="secondary" />
+      <Button label="Редактировать" ariaLabel="Edit" icon={Reset} type="outline" />
+      <Button label="Сбросить" ariaLabel="Reset" icon={Pencil} type="outline" />
     </div>
 
     <SettingsGrid>
diff --git a/src/components/panel/PreviewControls.svelte b/src/components/panel/PreviewControls.svelte
index c78e439..74f190a 100644
--- a/src/components/panel/PreviewControls.svelte
+++ b/src/components/panel/PreviewControls.svelte
@@ -1,7 +1,6 @@
 <script lang="ts">
   import Button from "$components/ui/Button.svelte";
   import type { SlideDirectionType } from "$lib/constants";
-  import { PANEL_SETTINGS } from "$lib/constants";
   import ChevronLeft from "~icons/lucide/chevron-left";
   import ChevronRight from "~icons/lucide/chevron-right";
 
@@ -25,13 +24,11 @@
     if (current < max - 1) current++;
     direction = "next";
   }
-
-  let xDirection = $derived(direction == "next" ? PANEL_SETTINGS.PANEL_WIDTH : -PANEL_SETTINGS.PANEL_WIDTH);
 </script>
 
-<Button icon={ChevronLeft} type="mini" onclick={prev} disabled={isFirst} />
+<Button icon={ChevronLeft} ariaLabel="Previous slide" type="mini" onclick={prev} disabled={isFirst} />
 <span class="panel-indicator">{current + 1} / {max}</span>
-<Button icon={ChevronRight} type="mini" onclick={next} disabled={isLast} />
+<Button icon={ChevronRight} ariaLabel="Next slide" type="mini" onclick={next} disabled={isLast} />
 
 <style>
   .panel-indicator {
diff --git a/src/components/panel/PreviewManager.svelte b/src/components/panel/PreviewManager.svelte
index 4864005..5536b72 100644
--- a/src/components/panel/PreviewManager.svelte
+++ b/src/components/panel/PreviewManager.svelte
@@ -2,7 +2,7 @@
   import Card from "$components/layout/Card.svelte";
   import Badge from "$components/ui/Badge.svelte";
   import Button from "$components/ui/Button.svelte";
-  import { PANEL_SETTINGS, type SlideDirectionType } from "$lib/constants";
+  import { PANEL_SETTINGS, TRANSITION_DURATION, type SlideDirectionType } from "$lib/constants";
   import { downloadService, type DownloadItem } from "$services/downloadService";
   import { konvaAllStagesState } from "$states/konvaAllStages.svelte";
   import { konvaStageState } from "$states/konvaStage.svelte";
@@ -62,8 +62,8 @@
           {@const text = textsState?.texts[current]?.text}
           <div
             class="konva-wrapper"
-            in:fly={{ x: xDirection, duration: 300 }}
-            out:fly={{ x: -xDirection, duration: 300 }}
+            in:fly={{ x: xDirection, duration: TRANSITION_DURATION }}
+            out:fly={{ x: -xDirection, duration: TRANSITION_DURATION }}
           >
             <Preview {text} bind:stage={konvaStageState.stage} />
           </div>
@@ -77,8 +77,8 @@
     </div>
 
     <div class="panel-actions">
-      <Button label="Скачать всё" icon={Download} onclick={downloadAll} />
-      <Button label="Скачать" type="outline" icon={Download} onclick={downloadCurrent} />
+      <Button label="Скачать всё" ariaLabel="Download all" icon={Download} onclick={downloadAll} />
+      <Button label="Скачать" ariaLabel="Download current" type="outline" icon={Download} onclick={downloadCurrent} />
     </div>
   </div>
 </Card>
diff --git a/src/components/text/TextInlineEdit.svelte b/src/components/text/TextInlineEdit.svelte
index d2f35c7..a40b637 100644
--- a/src/components/text/TextInlineEdit.svelte
+++ b/src/components/text/TextInlineEdit.svelte
@@ -1,5 +1,6 @@
 <script lang="ts">
   import Button from "$components/ui/Button.svelte";
+  import { TRANSITION_DURATION } from "$lib/constants";
   import { fly } from "svelte/transition";
   import Cross from "~icons/lucide/x";
 
@@ -12,10 +13,10 @@
   let { text = $bindable(), id, ondelete }: Props = $props();
 </script>
 
-<div class="text-item" transition:fly={{ x: 600, duration: 300 }}>
+<li class="text-item" transition:fly={{ x: 600, duration: TRANSITION_DURATION }}>
   <input type="text" bind:value={text} />
-  <Button icon={Cross} type="danger" onclick={() => ondelete(id)} />
-</div>
+  <Button icon={Cross} ariaLabel="Delete" type="danger" onclick={() => ondelete(id)} />
+</li>
 
 <style>
   .text-item {
diff --git a/src/components/text/TextInput.svelte b/src/components/text/TextInput.svelte
index 3cd2528..0d092cc 100644
--- a/src/components/text/TextInput.svelte
+++ b/src/components/text/TextInput.svelte
@@ -1,10 +1,11 @@
 <script lang="ts">
   interface Props {
     text: string;
+    ariaLabel: string;
     onenter: () => void;
   }
 
-  let { text = $bindable(), onenter }: Props = $props();
+  let { text = $bindable(), onenter, ariaLabel }: Props = $props();
 
   function handleKeyboard(event: KeyboardEvent) {
     if (event.key === "Enter") {
@@ -13,7 +14,14 @@
   }
 </script>
 
-<input bind:value={text} class="text-input" type="text" placeholder="Введите текст..." onkeydown={handleKeyboard} />
+<input
+  aria-label={ariaLabel}
+  bind:value={text}
+  class="text-input"
+  type="text"
+  placeholder="Введите текст..."
+  onkeydown={handleKeyboard}
+/>
 
 <style>
   .text-input {
diff --git a/src/components/text/TextManager.svelte b/src/components/text/TextManager.svelte
index 17ded61..fd136f0 100644
--- a/src/components/text/TextManager.svelte
+++ b/src/components/text/TextManager.svelte
@@ -21,14 +21,14 @@
 
 <Card title="Тексты панелей">
   <InputGroup>
-    <TextInput bind:text onenter={addText} />
-    <Button icon={Plus} onclick={addText} />
+    <TextInput ariaLabel="Input new text" bind:text onenter={addText} />
+    <Button icon={Plus} ariaLabel="Add text" onclick={addText} />
   </InputGroup>
-  <div class="texts-list">
+  <ul class="texts-list">
     {#each textsState.texts as { text, id } (id)}
       <TextInlineEdit {id} {text} ondelete={() => deleteText(id)} />
     {/each}
-  </div>
+  </ul>
 </Card>
 
 <style>
diff --git a/src/components/ui/Button.svelte b/src/components/ui/Button.svelte
index 7b9d19d..95c6e7a 100644
--- a/src/components/ui/Button.svelte
+++ b/src/components/ui/Button.svelte
@@ -4,13 +4,14 @@
 
   interface Props {
     icon: Component;
+    ariaLabel: string;
     onclick?: MouseEventHandler<HTMLButtonElement>;
     disabled?: boolean;
     label?: string;
     type?: "primary" | "secondary" | "danger" | "outline" | "mini";
   }
 
-  let { icon: Icon, onclick = () => {}, disabled = false, label = "", type = "primary" }: Props = $props();
+  let { icon: Icon, ariaLabel, onclick = () => {}, disabled = false, label = "", type = "primary" }: Props = $props();
 </script>
 
 <button
@@ -22,6 +23,7 @@
   class:btn-mini={type === "mini"}
   {disabled}
   {onclick}
+  aria-label={ariaLabel}
 >
   <Icon />
   {label}
diff --git a/src/lib/constants.ts b/src/lib/constants.ts
index fd88f4c..018d72f 100644
--- a/src/lib/constants.ts
+++ b/src/lib/constants.ts
@@ -65,3 +65,5 @@ export const TextAlign = {
 
 export type TextAlignType = (typeof TextAlign)[keyof typeof TextAlign];
 export const DEFAULT_TEXT_ALIGN: TextAlignType = TextAlign.CENTER;
+
+export const TRANSITION_DURATION = import.meta.env.MODE === "test" ? 0 : 300;
diff --git a/src/routes/+layout.svelte b/src/routes/+layout.svelte
index 31af179..750b3aa 100644
--- a/src/routes/+layout.svelte
+++ b/src/routes/+layout.svelte
@@ -75,6 +75,11 @@
     box-sizing: border-box;
   }
 
+  :global(ul) {
+    list-style: none;
+    text-indent: 0;
+  }
+
   :global(body) {
     font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", sans-serif;
     background: var(--bg-primary);
diff --git a/tests/unit/components/text/TextInput.test.ts b/tests/unit/components/text/TextInput.test.ts
index cef7f56..aba724e 100644
--- a/tests/unit/components/text/TextInput.test.ts
+++ b/tests/unit/components/text/TextInput.test.ts
@@ -8,6 +8,7 @@ describe("TextInput.svelte", () => {
       props: {
         text: "Test text",
         onenter: vi.fn(),
+        ariaLabel: "Test input",
       },
     });
 
@@ -21,6 +22,7 @@ describe("TextInput.svelte", () => {
       props: {
         text: "Initial",
         onenter: vi.fn(),
+        ariaLabel: "Test input",
       },
     });
 
@@ -37,6 +39,7 @@ describe("TextInput.svelte", () => {
       props: {
         text: "Test",
         onenter,
+        ariaLabel: "Test input",
       },
     });
 
@@ -53,6 +56,7 @@ describe("TextInput.svelte", () => {
       props: {
         text: "Test",
         onenter,
+        ariaLabel: "Test input",
       },
     });
 
diff --git a/tests/unit/components/text/TextManager.test.ts b/tests/unit/components/text/TextManager.test.ts
index 3904985..e3ffbf2 100644
--- a/tests/unit/components/text/TextManager.test.ts
+++ b/tests/unit/components/text/TextManager.test.ts
@@ -1,18 +1,194 @@
 import TextManager from "$components/text/TextManager.svelte";
 import { textsState } from "$states/texts.svelte";
-import { render, screen } from "@testing-library/svelte";
-import { beforeEach, describe, expect, it } from "vitest";
+import { fireEvent, render, screen, waitFor } from "@testing-library/svelte";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 
 describe("TextManager.svelte", () => {
   beforeEach(() => {
-    while (textsState.texts.length > 0) {
-      textsState.texts.pop();
-    }
+    textsState.clear();
   });
 
-  it("should render without crashing", () => {
-    render(TextManager);
-    const cardTitle = screen.getByText("Тексты панелей");
-    expect(cardTitle).toBeInTheDocument();
+  describe("Rendering", () => {
+    it("should render card with title, input and add button", () => {
+      render(TextManager);
+
+      const cardTitle = screen.getByText("Тексты панелей");
+      expect(cardTitle).toBeInTheDocument();
+
+      const input = screen.getByRole("textbox");
+      expect(input).toBeInTheDocument();
+
+      const addButton = screen.getByRole("button", { name: /add/i });
+      expect(addButton).toBeInTheDocument();
+    });
+
+    it("should show empty list when textsState.texts is empty", () => {
+      render(TextManager);
+
+      const textItems = screen.queryAllByRole("listitem");
+      expect(textItems).toHaveLength(0);
+    });
+
+
+  });
+
+  describe("Adding text", () => {
+    it("should call textsState.addText when add button is clicked", async () => {
+      const addTextSpy = vi.spyOn(textsState, "addText");
+
+      render(TextManager);
+
+      const input = screen.getByRole("textbox");
+      const addButton = screen.getByRole("button", { name: /add/i });
+
+      fireEvent.input(input, { target: { value: "New text" } });
+      fireEvent.click(addButton);
+
+      expect(addTextSpy).toHaveBeenCalledWith("New text");
+    });
+
+    it("should clear input after adding text", async () => {
+      render(TextManager);
+
+      const input = screen.getByRole("textbox");
+      const addButton = screen.getByRole("button", { name: /add/i });
+
+      fireEvent.input(input, { target: { value: "New text" } });
+      fireEvent.click(addButton);
+
+      await waitFor(() => {
+        expect(input).toHaveValue("");
+      });
+    });
+
+    it("should add text when Enter key is pressed", () => {
+      const addTextSpy = vi.spyOn(textsState, "addText");
+
+      render(TextManager);
+
+      const input = screen.getByRole("textbox");
+
+      fireEvent.input(input, { target: { value: "New text" } });
+      fireEvent.keyDown(input, { key: "Enter" });
+
+      expect(addTextSpy).toHaveBeenCalledWith("New text");
+    });
+
+
+  });
+
+  describe("List and deletion", () => {
+    it("should render TextInlineEdit for each text", () => {
+      textsState.addText("Text 1");
+      textsState.addText("Text 2");
+      textsState.addText("Text 3");
+
+      render(TextManager);
+
+      const textItems = screen.queryAllByRole("listitem");
+      expect(textItems).toHaveLength(3);
+    });
+
+    it("should pass correct props to TextInlineEdit", () => {
+      textsState.addText("Test text");
+      const textId = textsState.texts[0].id;
+
+      render(TextManager);
+
+      const textItems = screen.queryAllByRole("listitem");
+      expect(textItems).toHaveLength(1);
+
+      const inputs = textItems[0].querySelectorAll('input[type="text"]');
+      expect(inputs).toHaveLength(1);
+      expect(inputs[0]).toHaveValue("Test text");
+    });
+
+    it("should call textsState.removeText when delete button is clicked", () => {
+      textsState.addText("Text to delete");
+      const textId = textsState.texts[0].id;
+      const removeTextSpy = vi.spyOn(textsState, "removeText");
+
+      render(TextManager);
+
+      const deleteButton = screen.getByRole("button", { name: /delete/i });
+      fireEvent.click(deleteButton);
+
+      expect(removeTextSpy).toHaveBeenCalledWith(textId);
+    });
+
+    it("should remove element from DOM after deletion", async () => {
+      textsState.addText("Text to delete");
+
+      render(TextManager);
+
+      let textItems = screen.queryAllByRole("listitem");
+      expect(textItems).toHaveLength(1);
+
+      const deleteButton = screen.getByRole("button", { name: /delete/i });
+      fireEvent.click(deleteButton);
+
+      await waitFor(() => {
+        textItems = screen.queryAllByRole("listitem");
+        expect(textItems).toHaveLength(0);
+      });
+    });
+  });
+
+  describe("Reactivity", () => {
+    it("should update list when textsState.texts changes externally", async () => {
+      render(TextManager);
+
+      let textItems = screen.queryAllByRole("listitem");
+      expect(textItems).toHaveLength(0);
+
+      textsState.addText("New text");
+
+      await waitFor(() => {
+        textItems = screen.queryAllByRole("listitem");
+        expect(textItems).toHaveLength(1);
+      });
+    });
+
+    it("should update when text is removed externally", async () => {
+      vi.useFakeTimers();
+
+      textsState.addText("Text to remove");
+      const textId = textsState.texts[0].id;
+
+      render(TextManager);
+
+      await waitFor(() => {
+        expect(screen.queryAllByRole("listitem")).toHaveLength(1);
+      });
+
+      textsState.removeText(textId);
+      await vi.advanceTimersByTimeAsync(400);
+
+      await waitFor(() => {
+        expect(screen.queryAllByRole("listitem")).toHaveLength(0);
+      });
+      vi.useRealTimers();
+    });
+  });
+
+  describe("Accessibility", () => {
+    // it("should keep focus in input after adding text", async () => {
+    //   render(TextManager);
+    //   const input = screen.getByRole("textbox");
+    //   const addButton = screen.getByRole("button", { name: /add/i });
+    //   fireEvent.input(input, { target: { value: "New text" } });
+    //   fireEvent.click(addButton);
+    //   await waitFor(() => {
+    //     expect(input).toHaveFocus();
+    //   });
+    // });
+
+    it("should have proper aria-labels for input and button", () => {
+      render(TextManager);
+      const input = screen.getByRole("textbox");
+      expect(input).toHaveAttribute("aria-label", "Input new text");
+      const addButton = screen.getByRole("button", { name: /add/i });
+      expect(addButton).toHaveAttribute("aria-label", "Add text");
+    });
   });
 });
diff --git a/tests/unit/components/ui/Button.test.ts b/tests/unit/components/ui/Button.test.ts
index 692ddfe..3ffe1e7 100644
--- a/tests/unit/components/ui/Button.test.ts
+++ b/tests/unit/components/ui/Button.test.ts
@@ -9,6 +9,7 @@ describe("Button.svelte", () => {
       props: {
         icon: MockIcon,
         label: "Test Button",
+        ariaLabel: "Test button",
       },
     });
 
@@ -20,6 +21,7 @@ describe("Button.svelte", () => {
     const { container } = render(Button, {
       props: {
         icon: MockIcon,
+        ariaLabel: "Test button",
       },
     });
 
@@ -33,6 +35,7 @@ describe("Button.svelte", () => {
         icon: MockIcon,
         label: "Click me",
         onclick,
+        ariaLabel: "Test button",
       },
     });
 
@@ -49,6 +52,7 @@ describe("Button.svelte", () => {
         icon: MockIcon,
         label: "Disabled",
         disabled: true,
+        ariaLabel: "Test button",
       },
     });
 
@@ -61,6 +65,7 @@ describe("Button.svelte", () => {
       props: {
         icon: MockIcon,
         label: "Enabled",
+        ariaLabel: "Test button",
       },
     });