diff --git a/package.json b/package.json
index c0977c5..0920408 100644
--- a/package.json
+++ b/package.json
@@ -38,6 +38,7 @@
     "faker": "^5.4.0",
     "jest": "^26.6.3",
     "jest-fetch-mock": "^3.0.3",
+    "next-page-tester": "^0.23.0",
     "typescript": "^4.2.3"
   },
   "eslintConfig": {
diff --git a/pages/[[...slug]].tsx b/pages/[[...slug]].tsx
index 08c32c8..0a184d5 100644
--- a/pages/[[...slug]].tsx
+++ b/pages/[[...slug]].tsx
@@ -10,7 +10,7 @@ import langReducer, { Actions, initialState } from "../utils/reducer";
 
 const Page: FC<InferGetStaticPropsType<typeof getStaticProps>> = ({ translation, statusCode, errorMsg, initial }) => {
     const [{ source, target, query }, dispatch] = useReducer(langReducer, initialState);
-    const [encodedQuery, setEncodedQuery] = useState("");
+    const [delayedQuery, setDelayedQuery] = useState(initialState.query);
 
     const handleChange = (e: ChangeEvent<HTMLInputElement | HTMLSelectElement>) => {
         dispatch({
@@ -27,16 +27,19 @@ const Page: FC<InferGetStaticPropsType<typeof getStaticProps>> = ({ translation,
     }, [initial]);
 
     useEffect(() => {
-        if (!query || query === initial?.query)
-            return;
-
-        const timeout = setTimeout(() => setEncodedQuery(encodeURIComponent(query)), 1000);
+        const timeout = setTimeout(() => setDelayedQuery(query), 1000);
         return () => clearTimeout(timeout);
-    }, [query, initial?.query]);
+    }, [query]);
 
     useEffect(() => {
-        encodedQuery && Router.push(`/${source}/${target}/${encodedQuery}`);
-    }, [source, target, encodedQuery]);
+        const queryIsEmpty = !delayedQuery || delayedQuery === initialState.query;
+        const queryIsInitial = delayedQuery === initial?.query;
+        const sourceIsInitial = source === initialState.source || source === initial?.source;
+        const targetIsInitial = target === initialState.target || source === initial?.target;
+        const allAreInitials = queryIsInitial && sourceIsInitial && targetIsInitial;
+
+        queryIsEmpty || allAreInitials || Router.push(`/${source}/${target}/${encodeURIComponent(delayedQuery)}`);
+    }, [source, target, delayedQuery, initial]);
 
     const { sourceLangs, targetLangs } = retrieveFiltered(source, target);
 
diff --git a/tests/pages/[[...slug]].test.tsx b/tests/pages/[[...slug]].test.tsx
new file mode 100644
index 0000000..be26efb
--- /dev/null
+++ b/tests/pages/[[...slug]].test.tsx
@@ -0,0 +1,158 @@
+import { screen, waitFor } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+import Router from "next/router";
+import { getPage } from "next-page-tester";
+import faker from "faker";
+import { getStaticProps } from "../../pages/[[...slug]]";
+
+const mockPush = jest.fn().mockImplementation(async () => true);
+Router.push = mockPush;
+
+const html = (translation: string) => `
+    <div class="result-container">
+        ${translation}
+    </div>
+`;
+
+beforeEach(() => {
+    fetchMock.resetMocks();
+    mockPush.mockReset();
+});
+
+describe("getStaticProps", () => {
+    const source = faker.random.locale();
+    const target = faker.random.locale();
+    const query = faker.random.words();
+
+    it("returns empty props on empty params", async () => {
+        expect(await getStaticProps({ params: {} })).toStrictEqual({ props: {} });
+    });
+
+    it("returns not found on >4 params", async () => {
+        const slug = [source, target, query, ""];
+        expect(await getStaticProps({ params: { slug } })).toStrictEqual({ notFound: true });
+    });
+
+    it("redirects on 1 param", async () => {
+        const slug = [query];
+        expect(await getStaticProps({ params: { slug } })).toMatchObject({ redirect: expect.any(Object) });
+    });
+
+    it("redirects on 2 params", async () => {
+        const slug = [target, query];
+        expect(await getStaticProps({ params: { slug } })).toMatchObject({ redirect: expect.any(Object) });
+    });
+
+    it("returns translation & initial values on 3 params", async () => {
+        const translation = faker.random.words();
+        fetchMock.mockResponseOnce(async () => ({ body: html(translation) }));
+
+        const slug = [source, target, query];
+        expect(await getStaticProps({ params: { slug } })).toStrictEqual({
+            props: {
+                translation,
+                initial: {
+                    source,
+                    target,
+                    query
+                }
+            },
+            revalidate: expect.any(Number)
+        });
+    });
+});
+
+describe("Page", () => {
+    it("switches the page on query change", async () => {
+        const { render } = await getPage({
+            route: "/"
+        });
+        render();
+
+        const query = screen.getByRole("textbox", { name: /query/i });
+        userEvent.type(query, faker.random.words());
+
+        await waitFor(
+            () => expect(Router.push).toHaveBeenCalledTimes(1),
+            { timeout: 2500 }
+        );
+    });
+
+    it("translates & loads initials correctly", async () => {
+        const initial = {
+            source: "ca",
+            target: "es",
+            query: faker.random.words()
+        };
+        const translation = faker.random.words();
+        fetchMock.mockResponseOnce(async () => ({ body: html(translation) }));
+
+        const { render } = await getPage({
+            route: `/${initial.source}/${initial.target}/${initial.query}`
+        });
+        render();
+
+        expect(await screen.findByText(translation)).toBeVisible();
+        const query = screen.getByRole("textbox", { name: /query/i });
+        expect(query).toHaveValue(encodeURIComponent(initial.query));
+        const source = screen.getByRole("combobox", { name: /source/i });
+        expect(source).toHaveValue(initial.source);
+        const target = screen.getByRole("combobox", { name: /target/i });
+        expect(target).toHaveValue(initial.target);
+    });
+
+    it("parses urlencoding correctly", async () => {
+        const initial = {
+            source: "zh",
+            target: "en",
+            query: "你好"
+        };
+        const translation = "Hello";
+        fetchMock.mockResponseOnce(async () => ({ body: html(translation) }));
+
+        const { render } = await getPage({
+            route: `/${initial.source}/${initial.target}/${initial.query}`
+        });
+        render();
+
+        expect(await screen.findByText(translation)).toBeVisible();
+        const source = screen.getByRole("combobox", { name: /source/i });
+        expect(source).toHaveValue(initial.source);
+        const target = screen.getByRole("combobox", { name: /target/i });
+        expect(target).toHaveValue(initial.target);
+        const query = screen.getByRole("textbox", { name: /query/i });
+        expect(query).toHaveValue(encodeURIComponent(initial.query));
+    });
+
+    it("switches the page on language change", async () => {
+        fetchMock.mockResponseOnce(async () => ({ body: html(faker.random.words()) }));
+
+        const { render } = await getPage({
+            route: `/auto/en/${faker.random.words()}`
+        });
+        render();
+
+        const source = screen.getByRole("combobox", { name: /source/i });
+
+        const sourceVal = "eo";
+        userEvent.selectOptions(source, sourceVal);
+        expect(source).toHaveValue(sourceVal);
+
+        await waitFor(() => expect(Router.push).toHaveBeenCalledTimes(1));
+    });
+
+    it("doesn't switch the page on language change on the start page", async () => {
+        const { render } = await getPage({
+            route: "/"
+        });
+        render();
+
+        const source = screen.getByRole("combobox", { name: /source/i });
+
+        const sourceVal = "eo";
+        userEvent.selectOptions(source, sourceVal);
+        expect(source).toHaveValue(sourceVal);
+
+        await waitFor(() => expect(Router.push).not.toHaveBeenCalled());
+    });
+});
diff --git a/yarn.lock b/yarn.lock
index fe2052d..e4bd47e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -719,6 +719,40 @@
   dependencies:
     "@babel/types" "^7.3.0"
 
+"@types/body-parser@*":
+  version "1.19.0"
+  resolved "https://registry.yarnpkg.com/@types/body-parser/-/body-parser-1.19.0.tgz#0685b3c47eb3006ffed117cdd55164b61f80538f"
+  integrity sha512-W98JrE0j2K78swW4ukqMleo8R7h/pFETjM2DQ90MF6XK2i4LO4W3gQ71Lt4w3bfm2EvVSyWHplECvB5sK22yFQ==
+  dependencies:
+    "@types/connect" "*"
+    "@types/node" "*"
+
+"@types/connect@*":
+  version "3.4.34"
+  resolved "https://registry.yarnpkg.com/@types/connect/-/connect-3.4.34.tgz#170a40223a6d666006d93ca128af2beb1d9b1901"
+  integrity sha512-ePPA/JuI+X0vb+gSWlPKOY0NdNAie/rPUqX2GUPpbZwiKTkSPhjXWuee47E4MtE54QVzGCQMQkAL6JhV2E1+cQ==
+  dependencies:
+    "@types/node" "*"
+
+"@types/express-serve-static-core@^4.17.18":
+  version "4.17.18"
+  resolved "https://registry.yarnpkg.com/@types/express-serve-static-core/-/express-serve-static-core-4.17.18.tgz#8371e260f40e0e1ca0c116a9afcd9426fa094c40"
+  integrity sha512-m4JTwx5RUBNZvky/JJ8swEJPKFd8si08pPF2PfizYjGZOKr/svUWPcoUmLow6MmPzhasphB7gSTINY67xn3JNA==
+  dependencies:
+    "@types/node" "*"
+    "@types/qs" "*"
+    "@types/range-parser" "*"
+
+"@types/express@^4.17.8":
+  version "4.17.11"
+  resolved "https://registry.yarnpkg.com/@types/express/-/express-4.17.11.tgz#debe3caa6f8e5fcda96b47bd54e2f40c4ee59545"
+  integrity sha512-no+R6rW60JEc59977wIxreQVsIEOAYwgCqldrA/vkpCnbD7MqTefO97lmoBe4WE0F156bC4uLSP1XHDOySnChg==
+  dependencies:
+    "@types/body-parser" "*"
+    "@types/express-serve-static-core" "^4.17.18"
+    "@types/qs" "*"
+    "@types/serve-static" "*"
+
 "@types/faker@^5.1.7":
   version "5.1.7"
   resolved "https://registry.yarnpkg.com/@types/faker/-/faker-5.1.7.tgz#1c3f0655f6e912f5578ce40baa941ab8705fc0ef"
@@ -768,6 +802,11 @@
   resolved "https://registry.yarnpkg.com/@types/json5/-/json5-0.0.29.tgz#ee28707ae94e11d2b827bcbe5270bcea7f3e71ee"
   integrity sha1-7ihweulOEdK4J7y+UnC86n8+ce4=
 
+"@types/mime@^1":
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/@types/mime/-/mime-1.3.2.tgz#93e25bf9ee75fe0fd80b594bc4feb0e862111b5a"
+  integrity sha512-YATxVxgRqNH6nHEIsvg6k2Boc1JHI9ZbH5iWFFv/MTkchz3b1ieGDa5T0a9RznNdI0KhVbdbWSN+KWWrQZRxTw==
+
 "@types/node@*", "@types/node@^14.14.33":
   version "14.14.33"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-14.14.33.tgz#9e4f8c64345522e4e8ce77b334a8aaa64e2b6c78"
@@ -788,6 +827,16 @@
   resolved "https://registry.yarnpkg.com/@types/prop-types/-/prop-types-15.7.3.tgz#2ab0d5da2e5815f94b0b9d4b95d1e5f243ab2ca7"
   integrity sha512-KfRL3PuHmqQLOG+2tGpRO26Ctg+Cq1E01D2DMriKEATHgWLfeNDmq9e29Q9WIky0dQ3NPkd1mzYH8Lm936Z9qw==
 
+"@types/qs@*":
+  version "6.9.6"
+  resolved "https://registry.yarnpkg.com/@types/qs/-/qs-6.9.6.tgz#df9c3c8b31a247ec315e6996566be3171df4b3b1"
+  integrity sha512-0/HnwIfW4ki2D8L8c9GVcG5I72s9jP5GSLVF0VIXDW00kmIpA6O33G7a8n59Tmh7Nz0WUC3rSb7PTY/sdW2JzA==
+
+"@types/range-parser@*":
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/@types/range-parser/-/range-parser-1.2.3.tgz#7ee330ba7caafb98090bece86a5ee44115904c2c"
+  integrity sha512-ewFXqrQHlFsgc09MK5jP5iR7vumV/BYayNC6PgJO2LPe8vrnNFyjQjSppfEngITi0qvfKtzFvgKymGheFM9UOA==
+
 "@types/react@^17.0.3":
   version "17.0.3"
   resolved "https://registry.yarnpkg.com/@types/react/-/react-17.0.3.tgz#ba6e215368501ac3826951eef2904574c262cc79"
@@ -802,6 +851,14 @@
   resolved "https://registry.yarnpkg.com/@types/scheduler/-/scheduler-0.16.1.tgz#18845205e86ff0038517aab7a18a62a6b9f71275"
   integrity sha512-EaCxbanVeyxDRTQBkdLb3Bvl/HK7PBK6UJjsSixB0iHKoWxE5uu2Q/DgtpOhPIojN0Zl1whvOd7PoHs2P0s5eA==
 
+"@types/serve-static@*":
+  version "1.13.9"
+  resolved "https://registry.yarnpkg.com/@types/serve-static/-/serve-static-1.13.9.tgz#aacf28a85a05ee29a11fb7c3ead935ac56f33e4e"
+  integrity sha512-ZFqF6qa48XsPdjXV5Gsz0Zqmux2PerNd3a/ktL45mHpa19cuMi/cL8tcxdAx497yRh+QtYPuofjT9oWw9P7nkA==
+  dependencies:
+    "@types/mime" "^1"
+    "@types/node" "*"
+
 "@types/stack-utils@^2.0.0":
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/@types/stack-utils/-/stack-utils-2.0.0.tgz#7036640b4e21cc2f259ae826ce843d277dad8cff"
@@ -938,6 +995,14 @@ abab@^2.0.3, abab@^2.0.5:
   resolved "https://registry.yarnpkg.com/abab/-/abab-2.0.5.tgz#c0b678fb32d60fc1219c784d6a826fe385aeb79a"
   integrity sha512-9IK9EadsbHo6jLWIpxpR6pL0sazTXV6+SQv25ZB+F7Bj9mJNaOc4nCRabwd5M/JwmUa8idz6Eci6eKfJryPs6Q==
 
+accepts@^1.3.7:
+  version "1.3.7"
+  resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.7.tgz#531bc726517a3b2b41f850021c6cc15eaab507cd"
+  integrity sha512-Il80Qs2WjYlJIBNzNkK6KYqlVMTbZLXgHx2oT0pU/fjRHyEp+PEfEPY0R3WCwAGVOtauxh1hOxNgIf5bv7dQpA==
+  dependencies:
+    mime-types "~2.1.24"
+    negotiator "0.6.2"
+
 acorn-globals@^6.0.0:
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/acorn-globals/-/acorn-globals-6.0.0.tgz#46cdd39f0f8ff08a876619b55f5ac8a6dc770b45"
@@ -1759,6 +1824,11 @@ convert-source-map@1.7.0, convert-source-map@^1.4.0, convert-source-map@^1.6.0,
   dependencies:
     safe-buffer "~5.1.1"
 
+cookie@^0.4.1:
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.4.1.tgz#afd713fe26ebd21ba95ceb61f9a8116e50a537d1"
+  integrity sha512-ZwrFkGJxUR3EIoXtO+yVE69Eb7KlixbaeAWfBQB9vVsNn/o+Yw69gBWSSDK825hQNdN+wF8zELf3dFNl/kxkUA==
+
 copy-descriptor@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/copy-descriptor/-/copy-descriptor-0.1.1.tgz#676f6eb3c39997c2ee1ac3a924fd6124748f578d"
@@ -2016,7 +2086,7 @@ delayed-stream@~1.0.0:
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
   integrity sha1-3zrhmayt+31ECqrgsp4icrJOxhk=
 
-depd@~1.1.2:
+depd@^1.1.0, depd@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.2.tgz#9bcd52e14c097763e749b274c4346ed2e560b5a9"
   integrity sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak=
@@ -2124,6 +2194,16 @@ domutils@^2.4.3, domutils@^2.4.4:
     domelementtype "^2.0.1"
     domhandler "^4.0.0"
 
+dotenv-expand@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/dotenv-expand/-/dotenv-expand-5.1.0.tgz#3fbaf020bfd794884072ea26b1e9791d45a629f0"
+  integrity sha512-YXQl1DSa4/PQyRfgrv6aoNjhasp/p4qs9FjJ4q4cQk+8m4r6k4ZSiEyytKG8f8W9gi8WsQtIObNmKd+tMzNTmA==
+
+dotenv@^8.2.0:
+  version "8.2.0"
+  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-8.2.0.tgz#97e619259ada750eea3e4ea3e26bceea5424b16a"
+  integrity sha512-8sJ78ElpbDJBHNeBzUbUVLsqKdccaa/BXF1uPTw3GrvQTBgrQrtObr2mUrE38vzYd8cEv+m/JBfDLioYcfXoaw==
+
 ecc-jsbn@~0.1.1:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz#3a83a904e54353287874c564b7549386849a98c9"
@@ -2608,7 +2688,7 @@ fast-deep-equal@^3.1.1:
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz#3a7d56b559d6cbc3eb512325244e619a65c6c525"
   integrity sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==
 
-fast-glob@^3.1.1:
+fast-glob@^3.1.1, fast-glob@^3.2.4:
   version "3.2.5"
   resolved "https://registry.yarnpkg.com/fast-glob/-/fast-glob-3.2.5.tgz#7939af2a656de79a4f1901903ee8adcaa7cb9661"
   integrity sha512-2DtFcgT68wiTTiwZ2hNdJfcHNke9XOfnwmBRWXhmeKM8rF0TGwmC/Qto3S7RoZKp5cilZbxzO5iTNTQsJ+EeDg==
@@ -2677,6 +2757,11 @@ find-cache-dir@3.3.1:
     make-dir "^3.0.2"
     pkg-dir "^4.1.0"
 
+find-root@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/find-root/-/find-root-1.1.0.tgz#abcfc8ba76f708c42a97b3d685b7e9450bfb9ce4"
+  integrity sha512-NKfW6bec6GfKc0SGx1e07QZY9PE99u0Bft/0rzSD5k3sO/vwkVUpDUKVm5Gpp5Ue3YfShPFTX2070tDs5kB9Ng==
+
 find-up@^2.0.0, find-up@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/find-up/-/find-up-2.1.0.tgz#45d1b7e506c717ddd482775a2b77920a3c0c57a7"
@@ -2731,6 +2816,11 @@ fragment-cache@^0.2.1:
   dependencies:
     map-cache "^0.2.2"
 
+fresh@^0.5.2:
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/fresh/-/fresh-0.5.2.tgz#3d8cadd90d976569fa835ab1f8e4b23a105605a7"
+  integrity sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac=
+
 fs.realpath@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
@@ -4071,6 +4161,16 @@ md5.js@^1.3.4:
     inherits "^2.0.1"
     safe-buffer "^5.1.2"
 
+media-typer@0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
+  integrity sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g=
+
+merge-descriptors@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
+  integrity sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E=
+
 merge-stream@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/merge-stream/-/merge-stream-2.0.0.tgz#52823629a14dd00c9770fb6ad47dc6310f2c1f60"
@@ -4081,6 +4181,11 @@ merge2@^1.3.0:
   resolved "https://registry.yarnpkg.com/merge2/-/merge2-1.4.1.tgz#4368892f885e907455a6fd7dc55c0c9d404990ae"
   integrity sha512-8q7VEgMJW4J8tcfVPy8g09NcQwZdbwFEqhe/WZkoIzjn/3TGDwtOCYtXGxA3O8tPzpczCCDgv+P2P5y00ZJOOg==
 
+methods@^1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
+  integrity sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4=
+
 micromatch@^3.1.4:
   version "3.1.10"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.10.tgz#70859bc95c9840952f359a068a3fc49f9ecfac23"
@@ -4121,13 +4226,18 @@ mime-db@1.46.0:
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.46.0.tgz#6267748a7f799594de3cbc8cde91def349661cee"
   integrity sha512-svXaP8UQRZ5K7or+ZmfNhg2xX3yKDMUzqadsSqi4NCH/KomcH75MAMYAGVlvXn4+b/xOPhS3I2uHKRUzvjY7BQ==
 
-mime-types@^2.1.12, mime-types@~2.1.19:
+mime-types@^2.1.12, mime-types@~2.1.19, mime-types@~2.1.24:
   version "2.1.29"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.29.tgz#1d4ab77da64b91f5f72489df29236563754bb1b2"
   integrity sha512-Y/jMt/S5sR9OaqteJtslsFZKWOIIqMACsJSiHghlCAyhf7jfVYjKBmLiX8OgpWeW+fjJ2b+Az69aPFPkUOY6xQ==
   dependencies:
     mime-db "1.46.0"
 
+mime@^1.3.4:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
+  integrity sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==
+
 mimic-fn@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-2.1.0.tgz#7ed2c2ccccaf84d3ffcb7a69b57711fc2083401b"
@@ -4212,6 +4322,26 @@ natural-compare@^1.4.0:
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
   integrity sha1-Sr6/7tdUHywnrPspvbvRXI1bpPc=
 
+negotiator@0.6.2:
+  version "0.6.2"
+  resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.2.tgz#feacf7ccf525a77ae9634436a64883ffeca346fb"
+  integrity sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw==
+
+next-page-tester@^0.23.0:
+  version "0.23.0"
+  resolved "https://registry.yarnpkg.com/next-page-tester/-/next-page-tester-0.23.0.tgz#588d648b92a7d148d7abd559272b4c03267063aa"
+  integrity sha512-7dEiUc0SQ3Gp85BDOke78MRGrKS4o44GPGY0eawLwGgj72HDvn1rVnhujVKUQkBrOOipZcrnS6FoX0TcVWu/ng==
+  dependencies:
+    "@types/express" "^4.17.8"
+    cookie "^0.4.1"
+    dotenv "^8.2.0"
+    dotenv-expand "^5.1.0"
+    fast-glob "^3.2.4"
+    find-root "^1.1.0"
+    node-mocks-http "^1.10.1"
+    normalize-path "^3.0.0"
+    stealthy-require "^1.1.1"
+
 next@10.0.8:
   version "10.0.8"
   resolved "https://registry.yarnpkg.com/next/-/next-10.0.8.tgz#a2232c11ffad974d67f3d572b8db2acaa5ddedd7"
@@ -4306,6 +4436,21 @@ node-libs-browser@^2.2.1:
     util "^0.11.0"
     vm-browserify "^1.0.1"
 
+node-mocks-http@^1.10.1:
+  version "1.10.1"
+  resolved "https://registry.yarnpkg.com/node-mocks-http/-/node-mocks-http-1.10.1.tgz#0232e99a5f66f5d2a0216a47251346bf5606d2d0"
+  integrity sha512-/Nz83kiJ3z+vGqxmlDyv8+L1CJno+gH23DzG3oPH9dBSfMYa5IFVwPgZpXCB2kdiiIu/HoDpZ2BuLqQs7qjFLQ==
+  dependencies:
+    accepts "^1.3.7"
+    depd "^1.1.0"
+    fresh "^0.5.2"
+    merge-descriptors "^1.0.1"
+    methods "^1.1.2"
+    mime "^1.3.4"
+    parseurl "^1.3.3"
+    range-parser "^1.2.0"
+    type-is "^1.6.18"
+
 node-modules-regexp@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/node-modules-regexp/-/node-modules-regexp-1.0.0.tgz#8d9dbe28964a4ac5712e9131642107c71e90ec40"
@@ -4609,6 +4754,11 @@ parse5@6.0.1, parse5@^6.0.0, parse5@^6.0.1:
   resolved "https://registry.yarnpkg.com/parse5/-/parse5-6.0.1.tgz#e1a1c085c569b3dc08321184f19a39cc27f7c30b"
   integrity sha512-Ofn/CTFzRGTTxwpNEs9PP93gXShHcTq255nzRYSKe8AkVpZY7e1fpmTfOyoIvjP5HG7Z2ZM7VS9PPhQGW2pOpw==
 
+parseurl@^1.3.3:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.3.tgz#9da19e7bee8d12dff0513ed5b76957793bc2e8d4"
+  integrity sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ==
+
 pascalcase@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/pascalcase/-/pascalcase-0.1.1.tgz#b363e55e8006ca6fe21784d2db22bd15d7917f14"
@@ -4886,6 +5036,11 @@ randomfill@^1.0.3:
     randombytes "^2.0.5"
     safe-buffer "^5.1.0"
 
+range-parser@^1.2.0:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.1.tgz#3cf37023d199e1c24d1a55b84800c2f3e6468031"
+  integrity sha512-Hrgsx+orqoygnmhFbKaHE6c296J+HTAQXoxEF6gNupROmmGJRoyzfG3ccAveqCBrwr/2yxQ5BVd/GTl5agOwSg==
+
 raw-body@2.4.1:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.4.1.tgz#30ac82f98bb5ae8c152e67149dac8d55153b168c"
@@ -5915,6 +6070,14 @@ type-fest@^0.8.1:
   resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.8.1.tgz#09e249ebde851d3b1e48d27c105444667f17b83d"
   integrity sha512-4dbzIzqvjtgiM5rw1k5rEHtBANKmdudhGyBEajN01fEyhaAIhsoKNy6y7+IN93IfpFtwY9iqi7kD+xwKhQsNJA==
 
+type-is@^1.6.18:
+  version "1.6.18"
+  resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.18.tgz#4e552cd05df09467dcbc4ef739de89f2cf37c131"
+  integrity sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==
+  dependencies:
+    media-typer "0.3.0"
+    mime-types "~2.1.24"
+
 typedarray-to-buffer@^3.1.5:
   version "3.1.5"
   resolved "https://registry.yarnpkg.com/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz#a97ee7a9ff42691b9f783ff1bc5112fe3fca9080"