diff --git a/test/cases/getSearchSegments.ts b/test/cases/getSearchSegments.ts
index 0084204..c18bef2 100644
--- a/test/cases/getSearchSegments.ts
+++ b/test/cases/getSearchSegments.ts
@@ -80,6 +80,67 @@ describe("getSearchSegments", () => {
             .catch(err => done(err));
     });
 
+    it("Should be able to filter by category with categories string", (done) => {
+        client.get(endpoint, { params: { videoID: "searchTest0", categories: `["selfpromo"]` } })
+            .then(res => {
+                assert.strictEqual(res.status, 200);
+                const data = res.data;
+                const segments = data.segments;
+                assert.strictEqual(data.segmentCount, 1);
+                assert.strictEqual(data.page, 0);
+                assert.strictEqual(segments[0].UUID, "search-downvote");
+                done();
+            })
+            .catch(err => done(err));
+    });
+
+    it("Should be able to filter by category with categories array", (done) => {
+        client.get(endpoint, { params: { videoID: "searchTest0", category: ["selfpromo"] } })
+            .then(res => {
+                assert.strictEqual(res.status, 200);
+                const data = res.data;
+                const segments = data.segments;
+                assert.strictEqual(data.segmentCount, 1);
+                assert.strictEqual(data.page, 0);
+                assert.strictEqual(segments[0].UUID, "search-downvote");
+                done();
+            })
+            .catch(err => done(err));
+    });
+
+    it("Should be able to filter by category with actionTypes JSON", (done) => {
+        client.get(endpoint, { params: { videoID: "searchTest5", actionTypes: `["mute"]` } })
+            .then(res => {
+                assert.strictEqual(res.status, 200);
+                const data = res.data;
+                assert.strictEqual(data.segmentCount, 1);
+                done();
+            })
+            .catch(err => done(err));
+    });
+
+    it("Should be able to filter by category with actionType array", (done) => {
+        client.get(endpoint, { params: { videoID: "searchTest5", actionType: ["mute"] } })
+            .then(res => {
+                assert.strictEqual(res.status, 200);
+                const data = res.data;
+                assert.strictEqual(data.segmentCount, 1);
+                done();
+            })
+            .catch(err => done(err));
+    });
+
+    it("Should be able to filter by category with actionType string", (done) => {
+        client.get(endpoint, { params: { videoID: "searchTest5", actionType: "mute" } })
+            .then(res => {
+                assert.strictEqual(res.status, 200);
+                const data = res.data;
+                assert.strictEqual(data.segmentCount, 1);
+                done();
+            })
+            .catch(err => done(err));
+    });
+
     it("Should be able to filter by lock status", (done) => {
         client.get(endpoint, { params: { videoID: "searchTest0", locked: false } })
             .then(res => {
diff --git a/test/cases/getSearchSegments4xx.ts b/test/cases/getSearchSegments4xx.ts
new file mode 100644
index 0000000..708a0b0
--- /dev/null
+++ b/test/cases/getSearchSegments4xx.ts
@@ -0,0 +1,48 @@
+import { client } from "../utils/httpClient";
+import assert from "assert";
+
+describe("getSearchSegments 4xx", () => {
+    const endpoint = "/api/searchSegments";
+
+    it("Should return 400 if no videoID", (done) => {
+        client.get(endpoint, { params: {} })
+            .then(res => {
+                assert.strictEqual(res.status, 400);
+                const data = res.data;
+                assert.strictEqual(data, "videoID not specified");
+                done();
+            })
+            .catch(err => done(err));
+    });
+
+    it("Should return 400 if invalid categories", (done) => {
+        client.get(endpoint, { params: { videoID: "nullVideo", categories: 3 } })
+            .then(res => {
+                assert.strictEqual(res.status, 400);
+                const data = res.data;
+                assert.strictEqual(data, "Categories parameter does not match format requirements.");
+                done();
+            })
+            .catch(err => done(err));
+    });
+
+    it("Should return 400 if invalid actionTypes", (done) => {
+        client.get(endpoint, { params: { videoID: "nullVideo", actionTypes: 3 } })
+            .then(res => {
+                assert.strictEqual(res.status, 400);
+                const data = res.data;
+                assert.strictEqual(data, "actionTypes parameter does not match format requirements.");
+                done();
+            })
+            .catch(err => done(err));
+    });
+
+    it("Should return 404 if no segments", (done) => {
+        client.get(endpoint, { params: { videoID: "nullVideo", actionType: "chapter" } })
+            .then(res => {
+                assert.strictEqual(res.status, 404);
+                done();
+            })
+            .catch(err => done(err));
+    });
+});