diff --git a/tests/unit-tests/commandbuilder.js b/tests/unit-tests/commandbuilder.js
index 0c2c4da..15aeb2a 100644
--- a/tests/unit-tests/commandbuilder.js
+++ b/tests/unit-tests/commandbuilder.js
@@ -1,110 +1,161 @@
+const fs = require('fs');
 import { expect, test, describe } from "vitest";
 import { get } from "svelte/store";
-import { addNode, resetNodes, makeFilterArgs, previewCommand } from "../../src/stores.js";
+import {
+  nodes,
+  edges,
+  addNode,
+  resetNodes,
+  makeFilterArgs,
+  previewCommand,
+	auto,
+} from "../../src/stores.js";
 
 function makeFilter(name, type) {
-	const [ins, outs] = type.toLowerCase().split("->");
-	return {
-		name: name,
-		inputs: ins.split(""),
-		outputs: outs.split(""),
-	}
+  const [ins, outs] = type.toLowerCase().split("->");
+  return {
+    name: name,
+    inputs: ins.split(""),
+    outputs: outs.split(""),
+  };
 }
 
 describe("Filter param builder", () => {
-	test("No params", () => {
-		const results = makeFilterArgs({
-			name: "filter",
-		});
-		expect(results).toBe("filter");
-	});
+  test("No params", () => {
+    const results = makeFilterArgs({
+      name: "filter",
+    });
+    expect(results).toBe("filter");
+  });
 
-	test("One param", () => {
-		const results = makeFilterArgs({
-			name: "filter",
-			params: [{ name: "param", value: 10 }],
-		});
-		expect(results).toBe("filter=param=10");
-	});
+  test("One param", () => {
+    const results = makeFilterArgs({
+      name: "filter",
+      params: [{ name: "param", value: 10 }],
+    });
+    expect(results).toBe("filter=param=10");
+  });
 
-	test("Param without values", () => {
-		const results = makeFilterArgs({
-			name: "filter",
-			params: [{ name: "param" }],
-		});
-		expect(results).toBe("filter");
-	});
+  test("Param without values", () => {
+    const results = makeFilterArgs({
+      name: "filter",
+      params: [{ name: "param" }],
+    });
+    expect(results).toBe("filter");
+  });
 
-	test("Param with default value", () => {
-		const results = makeFilterArgs({
-			name: "filter",
-			params: [{ name: "param", value: 1, default: 1 }],
-		});
-		expect(results).toBe("filter");
-	});
+  test("Param with default value", () => {
+    const results = makeFilterArgs({
+      name: "filter",
+      params: [{ name: "param", value: 1, default: 1 }],
+    });
+    expect(results).toBe("filter");
+  });
 
-	test("Lots of params", () => {
-		const results = makeFilterArgs({
-			name: "filter",
-			params: [
-				{ name: "param1", value: 1, default: 1 }, // should be ignored
-				{ name: "param2", value: "" }, // should be ignored
-				{ name: "param3", value: 1, default: 2 },
-				{ name: "param4", value: 2 },
-				{ name: "param5", value: "p5" },
-			],
-		});
-		expect(results).toBe("filter=param3=1:param4=2:param5=p5");
-	});
+  test("Lots of params", () => {
+    const results = makeFilterArgs({
+      name: "filter",
+      params: [
+        { name: "param1", value: 1, default: 1 }, // should be ignored
+        { name: "param2", value: "" }, // should be ignored
+        { name: "param3", value: 1, default: 2 },
+        { name: "param4", value: 2 },
+        { name: "param5", value: "p5" },
+      ],
+    });
+    expect(results).toBe("filter=param3=1:param4=2:param5=p5");
+  });
 });
 
 describe("Command builder", () => {
-	test("Defaults", () => {
-		expect(get(previewCommand).join(" ")).toBe("ffmpeg -i punch.mp4 out.mp4");
-	});
+  test("Defaults", () => {
+    expect(get(previewCommand).join(" ")).toBe("ffmpeg -i punch.mp4 out.mp4");
+  });
 
-	test("Simple video filter", () => {
-		resetNodes();
-		addNode(makeFilter("filter", "V->V"), "filter");
-		expect(get(previewCommand).join(" ")).toBe(
-			`ffmpeg -i punch.mp4 -filter_complex "[0:v]filter[out_v]" -map "[out_v]" -map 0:a out.mp4`
-		);
-	});
+  test("Simple video filter", () => {
+    resetNodes();
+    addNode(makeFilter("filter", "V->V"), "filter");
+    expect(get(previewCommand).join(" ")).toBe(
+      `ffmpeg -i punch.mp4 -filter_complex "[0:v]filter[out_v]" -map "[out_v]" -map 0:a out.mp4`
+    );
+  });
 
-	test("Simple audio filter", () => {
-		resetNodes();
-		addNode(makeFilter("filter", "a->a"), "filter");
-		expect(get(previewCommand).join(" ")).toBe(
-			`ffmpeg -i punch.mp4 -filter_complex "[0:a]filter[out_a]" -map "[out_a]" -map 0:v out.mp4`
-		);
-	});
+  test("Simple audio filter", () => {
+    resetNodes();
+    addNode(makeFilter("filter", "a->a"), "filter");
+    expect(get(previewCommand).join(" ")).toBe(
+      `ffmpeg -i punch.mp4 -filter_complex "[0:a]filter[out_a]" -map "[out_a]" -map 0:v out.mp4`
+    );
+  });
 
-	test("One audio, one video filter", () => {
-		resetNodes();
-		addNode(makeFilter("afilter", "a->a"), "filter");
-		addNode(makeFilter("vfilter", "v->v"), "filter");
-		expect(get(previewCommand).join(" ")).toBe(
-			`ffmpeg -i punch.mp4 -filter_complex "[0:a]afilter[out_a];[0:v]vfilter[out_v]" -map "[out_a]" -map "[out_v]" out.mp4`
-		);
-	});
+  test("One audio, one video filter", () => {
+    resetNodes();
+    addNode(makeFilter("afilter", "a->a"), "filter");
+    addNode(makeFilter("vfilter", "v->v"), "filter");
+    expect(get(previewCommand).join(" ")).toBe(
+      `ffmpeg -i punch.mp4 -filter_complex "[0:a]afilter[out_a];[0:v]vfilter[out_v]" -map "[out_a]" -map "[out_v]" out.mp4`
+    );
+  });
 
-	test("video filter chain", () => {
-		resetNodes();
-		addNode(makeFilter("vfilter", "v->v"), "filter");
-		addNode(makeFilter("vfilter2", "v->v"), "filter");
-		addNode(makeFilter("vfilter3", "v->v"), "filter");
-		expect(get(previewCommand).join(" ")).toBe(
-			`ffmpeg -i punch.mp4 -filter_complex "[0:v]vfilter,vfilter2,vfilter3[out_v]" -map "[out_v]" -map 0:a out.mp4`
-		);
-	});
+  test("video filter chain", () => {
+    resetNodes();
+    addNode(makeFilter("vfilter", "v->v"), "filter");
+    addNode(makeFilter("vfilter2", "v->v"), "filter");
+    addNode(makeFilter("vfilter3", "v->v"), "filter");
+    expect(get(previewCommand).join(" ")).toBe(
+      `ffmpeg -i punch.mp4 -filter_complex "[0:v]vfilter,vfilter2,vfilter3[out_v]" -map "[out_v]" -map 0:a out.mp4`
+    );
+  });
 
-	test("One audio, two video filters", () => {
-		resetNodes();
-		addNode(makeFilter("afilter", "a->a"), "filter");
-		addNode(makeFilter("vfilter", "v->v"), "filter");
-		addNode(makeFilter("vfilter2", "v->v"), "filter");
-		expect(get(previewCommand).join(" ")).toBe(
-			`ffmpeg -i punch.mp4 -filter_complex "[0:v]vfilter[1];[0:a]afilter[out_a];[1]vfilter2[out_v]" -map "[out_a]" -map "[out_v]" out.mp4`
-		);
-	});
+  test("One audio, two video filters", () => {
+    resetNodes();
+    addNode(makeFilter("afilter", "a->a"), "filter");
+    addNode(makeFilter("vfilter", "v->v"), "filter");
+    addNode(makeFilter("vfilter2", "v->v"), "filter");
+    expect(get(previewCommand).join(" ")).toBe(
+      `ffmpeg -i punch.mp4 -filter_complex "[0:v]vfilter[1];[0:a]afilter[out_a];[1]vfilter2[out_v]" -map "[out_a]" -map "[out_v]" out.mp4`
+    );
+  });
+
+  test("Examples", () => {
+    const examples = [
+      [
+        "crop_trim.json",
+        `ffmpeg -i punch.mp4 -filter_complex "[0:v]crop=out_w=iw/2,trim=start=1.7:duration=0.5[out_v]" -map "[out_v]" out.gif`,
+      ],
+      [
+        "grid.json",
+        `ffmpeg -i punch.mp4 -i shoe.mp4 -i shoe.mp4 -i punch.mp4 -filter_complex "[1:v][0:v][3:v][2:v]xstack=inputs=4:grid=2x2:shortest=true[out_v]" -map "[out_v]" out.mp4`,
+      ],
+      [
+        "scale_overlay.json",
+        `ffmpeg -i punch.mp4 -i shoe.mp4 -filter_complex "[0:v]scale=w=120:h=120:force_original_aspect_ratio=increase[1];[1:v][1]overlay=x=290:y=50[out_v]" -map "[out_v]" out.mp4`,
+      ],
+      [
+        "smooth_slow.json",
+        `ffmpeg -i punch.mp4 -filter_complex "[0:v]setpts=expr=2*PTS,minterpolate=fps=66[out_v];[0:a]asetpts=expr=2*PTS[out_a]" -map "[out_a]" -map "[out_v]" out.mp4`,
+      ],
+      [
+        "speedup.json",
+        `ffmpeg -i punch.mp4 -filter_complex "[0:v]setpts=expr=0.5*PTS[out_v]" -map "[out_v]" out.mp4`,
+      ],
+      [
+        "text.json",
+        `ffmpeg -i punch.mp4 -filter_complex "[0:v]drawtext=fontfile=comic.ttf:text=LOL:fontcolor=red:bordercolor=white:boxborderw=3:fontsize=100:x=300:y=150:borderw=5[out_v]" -map "[out_v]" -map 0:a out.mp4`,
+      ],
+      [
+        "xfade.json",
+        `ffmpeg -i punch.mp4 -i shoe.mp4 -filter_complex "[0:v][1:v]xfade=transition=radial:duration=3[out_v]" -map "[out_v]" -map 0:a out.mp4`,
+      ],
+    ];
+
+    for (const [filename, output] of examples) {
+      const data = JSON.parse(
+        fs.readFileSync(`public/examples/${filename}`, "utf8")
+      );
+      nodes.set(data.nodes);
+      edges.set(data.edges);
+			expect(get(previewCommand).join(" ")).toBe(output);
+    }
+  });
 });