From 8cea93220b0873f4fff7af4045d4072660b7a3ed Mon Sep 17 00:00:00 2001
From: Ilia Mashkov <hikkikomori7@gmail.com>
Date: Tue, 24 Mar 2026 13:02:58 +0300
Subject: [PATCH] feat(auth): create selectors for authStore; cover them with
 tests

---
 src/features/auth/model/selectors/index.ts    |  2 ++
 .../selectAuthData/selectAuthData.spec.ts     | 14 +++++++++++
 .../selectAuthData/selectAuthData.ts          |  7 ++++++
 .../selectFormValid/selectFormValid.spec.ts   | 25 +++++++++++++++++++
 .../selectFormValid/selectFormValid.ts        |  4 +++
 5 files changed, 52 insertions(+)
 create mode 100644 src/features/auth/model/selectors/index.ts
 create mode 100644 src/features/auth/model/selectors/selectAuthData/selectAuthData.spec.ts
 create mode 100644 src/features/auth/model/selectors/selectAuthData/selectAuthData.ts
 create mode 100644 src/features/auth/model/selectors/selectFormValid/selectFormValid.spec.ts
 create mode 100644 src/features/auth/model/selectors/selectFormValid/selectFormValid.ts

diff --git a/src/features/auth/model/selectors/index.ts b/src/features/auth/model/selectors/index.ts
new file mode 100644
index 0000000..f81592d
--- /dev/null
+++ b/src/features/auth/model/selectors/index.ts
@@ -0,0 +1,2 @@
+export * from "./selectFormValid/selectFormValid";
+export * from "./selectAuthData/selectAuthData";
diff --git a/src/features/auth/model/selectors/selectAuthData/selectAuthData.spec.ts b/src/features/auth/model/selectors/selectAuthData/selectAuthData.spec.ts
new file mode 100644
index 0000000..4fce0b1
--- /dev/null
+++ b/src/features/auth/model/selectors/selectAuthData/selectAuthData.spec.ts
@@ -0,0 +1,14 @@
+import { useAuthStore } from "../../stores/authStore/authStore";
+import { selectAuthData } from "./selectAuthData";
+import { MOCK_EMAIL, MOCK_PASSWORD } from "../../../api/calls/mocks";
+
+describe("selectAuthData", () => {
+  it("should return the correct auth data", () => {
+    useAuthStore.getState().setEmail(MOCK_EMAIL);
+    useAuthStore.getState().setPassword(MOCK_PASSWORD);
+    expect(selectAuthData(useAuthStore.getState())).toEqual({
+      email: MOCK_EMAIL,
+      password: MOCK_PASSWORD,
+    });
+  });
+});
diff --git a/src/features/auth/model/selectors/selectAuthData/selectAuthData.ts b/src/features/auth/model/selectors/selectAuthData/selectAuthData.ts
new file mode 100644
index 0000000..a4a7f02
--- /dev/null
+++ b/src/features/auth/model/selectors/selectAuthData/selectAuthData.ts
@@ -0,0 +1,7 @@
+import type { AuthData } from "../../types/service";
+import type { AuthStore } from "../../types/store";
+
+export const selectAuthData = (state: AuthStore): AuthData => ({
+  email: state.formData.email.value,
+  password: state.formData.password.value,
+});
diff --git a/src/features/auth/model/selectors/selectFormValid/selectFormValid.spec.ts b/src/features/auth/model/selectors/selectFormValid/selectFormValid.spec.ts
new file mode 100644
index 0000000..f6d85c1
--- /dev/null
+++ b/src/features/auth/model/selectors/selectFormValid/selectFormValid.spec.ts
@@ -0,0 +1,25 @@
+import { MOCK_EMAIL, MOCK_PASSWORD } from "../../../api/calls/mocks";
+import { useAuthStore } from "../../stores/authStore/authStore";
+import { selectFormValid } from "./selectFormValid";
+
+describe("selectFormValid", () => {
+  afterEach(() => {
+    useAuthStore.getState().reset();
+  });
+
+  it("should be false when email is invalid", () => {
+    useAuthStore.getState().setEmail("");
+    expect(selectFormValid(useAuthStore.getState())).toBe(false);
+  });
+
+  it("should be false when password is invalid", () => {
+    useAuthStore.getState().setPassword("");
+    expect(selectFormValid(useAuthStore.getState())).toBe(false);
+  });
+
+  it("should be true when email and password are valid", () => {
+    useAuthStore.getState().setEmail(MOCK_EMAIL);
+    useAuthStore.getState().setPassword(MOCK_PASSWORD);
+    expect(selectFormValid(useAuthStore.getState())).toBe(true);
+  });
+});
diff --git a/src/features/auth/model/selectors/selectFormValid/selectFormValid.ts b/src/features/auth/model/selectors/selectFormValid/selectFormValid.ts
new file mode 100644
index 0000000..05d4c4a
--- /dev/null
+++ b/src/features/auth/model/selectors/selectFormValid/selectFormValid.ts
@@ -0,0 +1,4 @@
+import type { AuthStore } from "../../types/store";
+
+export const selectFormValid = (state: AuthStore) =>
+  Object.values(state.formData).every((field) => field.valid);