diff --git a/src/i18n/en/tests.json b/src/i18n/en/tests.json
index d607be9..2802d87 100644
--- a/src/i18n/en/tests.json
+++ b/src/i18n/en/tests.json
@@ -7,7 +7,9 @@
     "isActive": "Is Active"
   },
   "errors": {
-    "intPrice": "Price should be an integer."
+    "intPrice": "Price should be an integer.",
+    "testNotFound": "Test not found.",
+    "priceAccessConstraint": "Test's price depends on access type of 'Paid'."
   },
   "messages": {
     "createSuccess": "Test Created Successfully."
diff --git a/src/i18n/fa/tests.json b/src/i18n/fa/tests.json
index 2783ba1..705933e 100644
--- a/src/i18n/fa/tests.json
+++ b/src/i18n/fa/tests.json
@@ -7,7 +7,9 @@
     "isActive": "فعال بودن"
   },
   "errors": {
-    "intPrice": "قیمت باید عدد صحیح باشد."
+    "intPrice": "قیمت باید عدد صحیح باشد.",
+    "testNotFound": "تست مورد نظر یافت نشد.",
+    "priceAccessConstraint": "قیمت تست به نوع دسترسی 'پرداخت' وابسته است."
   },
   "messages": {
     "createSuccess": "تست با موفقیت ایجاد شد."
diff --git a/src/modules/admin/auth/dtos/admin-login.dto.ts b/src/modules/admin/auth/dtos/admin-login.dto.ts
index 0e22877..3f7c376 100644
--- a/src/modules/admin/auth/dtos/admin-login.dto.ts
+++ b/src/modules/admin/auth/dtos/admin-login.dto.ts
@@ -19,5 +19,5 @@ export class AdminLoginDTO extends PhoneDTO {
       field: '$t(auth.fields.password)',
     }),
   })
-  password: string;
+  password!: string;
 }
diff --git a/src/modules/admin/auth/http/admin-login.post.http b/src/modules/admin/auth/http/admin-login.post.endpoints.http
similarity index 79%
rename from src/modules/admin/auth/http/admin-login.post.http
rename to src/modules/admin/auth/http/admin-login.post.endpoints.http
index 7d4ae19..febc3bd 100644
--- a/src/modules/admin/auth/http/admin-login.post.http
+++ b/src/modules/admin/auth/http/admin-login.post.endpoints.http
@@ -2,6 +2,6 @@ POST http://localhost:3000/admin/auth/login
 Content-Type: application/json
 
 {
-    "phone": "0933302636",
+    "phone": "09333026363",
     "password": "Password1@"
 }
\ No newline at end of file
diff --git a/src/modules/admin/tests/admin-tests.controller.ts b/src/modules/admin/tests/admin-tests.controller.ts
index 1cca2c9..31a72e7 100644
--- a/src/modules/admin/tests/admin-tests.controller.ts
+++ b/src/modules/admin/tests/admin-tests.controller.ts
@@ -1,10 +1,20 @@
 import { Role } from '@/common/enums/roles.enum';
 import { Roles } from '@/modules/auth/decorators/roles.decorator';
 import { CreateTestDTO } from '@/modules/tests/dtos/create-test.dto';
+import { UpdateTestDTO } from '@/modules/tests/dtos/update-test.dto';
 import { TestsService } from '@/modules/tests/providers/tests.service';
-import { Body, Controller, Post } from '@nestjs/common';
+import {
+  Body,
+  Controller,
+  Get,
+  Param,
+  ParseIntPipe,
+  Patch,
+  Post,
+} from '@nestjs/common';
 
 @Controller('admin/tests')
+@Roles(Role.SUPERUSER, Role.ADMIN)
 export class AdminTestsController {
   constructor(
     /**
@@ -14,8 +24,25 @@ export class AdminTestsController {
   ) {}
 
   @Post()
-  @Roles(Role.SUPERUSER, Role.ADMIN)
   public async createTest(@Body() createTestDto: CreateTestDTO) {
     return await this.testsService.createOne(createTestDto);
   }
+
+  @Get()
+  public async getAllTests() {
+    return await this.testsService.adminGetAll();
+  }
+
+  @Get(':id')
+  public async getTestById(@Param('id', ParseIntPipe) id: number) {
+    return await this.testsService.adminGetOne(id);
+  }
+
+  @Patch(':id')
+  public async updateTestById(
+    @Param('id', ParseIntPipe) id: number,
+    @Body() updateTestDto: UpdateTestDTO,
+  ) {
+    return await this.testsService.updateOne(id, updateTestDto);
+  }
 }
diff --git a/src/modules/admin/tests/http/admin-tests.get.endpoints.http b/src/modules/admin/tests/http/admin-tests.get.endpoints.http
new file mode 100644
index 0000000..c3129d2
--- /dev/null
+++ b/src/modules/admin/tests/http/admin-tests.get.endpoints.http
@@ -0,0 +1,5 @@
+GET http://localhost:3000/admin/tests
+Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOjEwLCJwaG9uZSI6IjA5MzMzMDI2MzYzIiwiaWF0IjoxNzgwMzk4MzI0LCJleHAiOjE3ODA0MDE5MjQsImF1ZCI6ImxvY2FsaG9zdCIsImlzcyI6ImxvY2FsaG9zdCJ9.s3NAErSAjMTz2s27obas3TEi5Og2HPeLgWCoIyzmzII
+
+GET http://localhost:3000/admin/tests/4
+Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOjEwLCJwaG9uZSI6IjA5MzMzMDI2MzYzIiwiaWF0IjoxNzgwMzk4MzI0LCJleHAiOjE3ODA0MDE5MjQsImF1ZCI6ImxvY2FsaG9zdCIsImlzcyI6ImxvY2FsaG9zdCJ9.s3NAErSAjMTz2s27obas3TEi5Og2HPeLgWCoIyzmzII
diff --git a/src/modules/admin/tests/http/admin-tests.patch.endpoints.http b/src/modules/admin/tests/http/admin-tests.patch.endpoints.http
new file mode 100644
index 0000000..55c7456
--- /dev/null
+++ b/src/modules/admin/tests/http/admin-tests.patch.endpoints.http
@@ -0,0 +1,8 @@
+PATCH http://localhost:3000/admin/tests/4
+Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOjEwLCJwaG9uZSI6IjA5MzMzMDI2MzYzIiwiaWF0IjoxNzgwNDk0NDQ1LCJleHAiOjE3ODA0OTgwNDUsImF1ZCI6ImxvY2FsaG9zdCIsImlzcyI6ImxvY2FsaG9zdCJ9.Sy-Er8DXzEUCD6Z-GZav0XKmpIqf0sXeBkUzjIf4Ypw
+Content-Type: application/json
+
+{
+    "accessType": "login",
+    "isActive": false
+}
diff --git a/src/modules/admin/tests/http/admin-tests.post.endpoints.http b/src/modules/admin/tests/http/admin-tests.post.endpoints.http
new file mode 100644
index 0000000..5367947
--- /dev/null
+++ b/src/modules/admin/tests/http/admin-tests.post.endpoints.http
@@ -0,0 +1,11 @@
+POST http://localhost:3000/admin/tests/
+Content-Type: application/json
+Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOjEwLCJwaG9uZSI6IjA5MzMzMDI2MzYzIiwiaWF0IjoxNzgwNDk0NDQ1LCJleHAiOjE3ODA0OTgwNDUsImF1ZCI6ImxvY2FsaG9zdCIsImlzcyI6ImxvY2FsaG9zdCJ9.Sy-Er8DXzEUCD6Z-GZav0XKmpIqf0sXeBkUzjIf4Ypw
+
+{
+    "title": "Test Five",
+    "description": "Description Five",
+    "accessType": "login",
+    "price": "1234000",
+    "isActive": true
+}
\ No newline at end of file
diff --git a/src/modules/admin/tests/http/admin-tests.post.http b/src/modules/admin/tests/http/admin-tests.post.http
deleted file mode 100644
index e275ae6..0000000
--- a/src/modules/admin/tests/http/admin-tests.post.http
+++ /dev/null
@@ -1,11 +0,0 @@
-POST http://localhost:3000/admin/tests/
-Content-Type: application/json
-Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOjEwLCJwaG9uZSI6IjA5MzMzMDI2MzYzIiwiaWF0IjoxNzgwMjIzNDExLCJleHAiOjE3ODAyMjcwMTEsImF1ZCI6ImxvY2FsaG9zdCIsImlzcyI6ImxvY2FsaG9zdCJ9.FNTIrk6FKO8P88yKnRCybZ6E5N3KlJaCHqZt5DMVgds
-
-{
-    "title": "Test Three",
-    "description": "Description Three",
-    "accessType": "free",
-    "price": "1234000",
-    "isActive": true
-}
\ No newline at end of file
diff --git a/src/modules/auth/dtos/login.dto.ts b/src/modules/auth/dtos/login.dto.ts
index 07d318d..e52d54e 100644
--- a/src/modules/auth/dtos/login.dto.ts
+++ b/src/modules/auth/dtos/login.dto.ts
@@ -23,7 +23,7 @@ export class PhoneDTO {
     }),
   })
   @Transform(({ value }) => Utils.StringUtils.normalizePhone(value as string))
-  phone: string;
+  phone!: string;
 }
 
 export class LoginDTO extends PhoneDTO {
diff --git a/src/modules/auth/dtos/refresh-token.dto.ts b/src/modules/auth/dtos/refresh-token.dto.ts
index 48b4ddf..51416e7 100644
--- a/src/modules/auth/dtos/refresh-token.dto.ts
+++ b/src/modules/auth/dtos/refresh-token.dto.ts
@@ -3,5 +3,5 @@ import { IsNotEmpty, IsString } from 'class-validator';
 export class RefreshTokenDTO {
   @IsNotEmpty()
   @IsString()
-  refreshToken: string;
+  refreshToken!: string;
 }
diff --git a/src/modules/auth/dtos/verify-otp.dto.ts b/src/modules/auth/dtos/verify-otp.dto.ts
index d582fe3..4b7ed06 100644
--- a/src/modules/auth/dtos/verify-otp.dto.ts
+++ b/src/modules/auth/dtos/verify-otp.dto.ts
@@ -9,5 +9,5 @@ export class VerifyOtpDTO extends PhoneDTO {
       field: '$t(auth.fields.otp)',
     }),
   })
-  otp: string;
+  otp!: string;
 }
diff --git a/src/modules/auth/http/login.post.endpoints.http b/src/modules/auth/http/login.post.endpoints.http
index a66a9c6..a2ae2aa 100644
--- a/src/modules/auth/http/login.post.endpoints.http
+++ b/src/modules/auth/http/login.post.endpoints.http
@@ -3,5 +3,6 @@ Content-Type: application/json
 lang: fa
 
 {
-    "phone": "09121111111"
+    "phone": "09333026363",
+    "password": "Password1@"
 }
\ No newline at end of file
diff --git a/src/modules/auth/http/refresh.post.endpoints.http b/src/modules/auth/http/refresh.post.endpoints.http
index 3c882fd..8aaefd8 100644
--- a/src/modules/auth/http/refresh.post.endpoints.http
+++ b/src/modules/auth/http/refresh.post.endpoints.http
@@ -2,10 +2,10 @@ POST http://localhost:3000/auth/refresh
 Content-Type: application/json
 
 // {
-//     "access": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOjEwLCJwaG9uZSI6IjA5MzMzMDI2MzYzIiwiaWF0IjoxNzgwMjIzNDExLCJleHAiOjE3ODAyMjcwMTEsImF1ZCI6ImxvY2FsaG9zdCIsImlzcyI6ImxvY2FsaG9zdCJ9.FNTIrk6FKO8P88yKnRCybZ6E5N3KlJaCHqZt5DMVgds",
-//     "refresh": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOjEwLCJqdGkiOiJmZDRjZGViYS1iMjUzLTQ5MjgtOGIxYS0yZTJhZDMwOTIzYzMiLCJpYXQiOjE3ODAyMjM0MTEsImV4cCI6MTc4MTA4NzQxMSwiYXVkIjoibG9jYWxob3N0IiwiaXNzIjoibG9jYWxob3N0In0.EO0OpjQix794Y7yVZ8pjLH5HngYfCTwu3lonEfXtLIQ"
+//     "access": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOjEwLCJwaG9uZSI6IjA5MzMzMDI2MzYzIiwiaWF0IjoxNzgwNDk0NDQ1LCJleHAiOjE3ODA0OTgwNDUsImF1ZCI6ImxvY2FsaG9zdCIsImlzcyI6ImxvY2FsaG9zdCJ9.Sy-Er8DXzEUCD6Z-GZav0XKmpIqf0sXeBkUzjIf4Ypw",
+//     "refresh": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOjEwLCJqdGkiOiIxOTA0NDljZi01ZGFiLTQ4NDYtOGU0OS1jZmNkYjhlNjI1YmQiLCJpYXQiOjE3ODA0OTQ0NDUsImV4cCI6MTc4MTM1ODQ0NSwiYXVkIjoibG9jYWxob3N0IiwiaXNzIjoibG9jYWxob3N0In0.k3ATuOrenBFRVAGUy93Kv6iCkKF7vLB2DSohoH0JpXQ"
 // }
 
 {
-    "refreshToken": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOjEwLCJqdGkiOiIyZjQ1YzcxMi01ZGQzLTRhY2ItYjExYS04ZDA5YTc3YTVmYTciLCJpYXQiOjE3Nzk5NTY1OTksImV4cCI6MTc4MDgyMDU5OSwiYXVkIjoibG9jYWxob3N0IiwiaXNzIjoibG9jYWxob3N0In0.GX4kSCUCIvBVq9l4lQ8dkETvFZ1NwBIm9NGOIjBsQCc"
+    "refreshToken": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOjEwLCJqdGkiOiJmMDA0YWNmZS03ZWU5LTQ1OTgtYjIwZi04NGM3YTA5NGU4NGIiLCJpYXQiOjE3ODAzODkxNjksImV4cCI6MTc4MTI1MzE2OSwiYXVkIjoibG9jYWxob3N0IiwiaXNzIjoibG9jYWxob3N0In0.yGKx-j0ommIdr1ARYZrXQyXRA-ZIi5Am7QS-VWlkc8w"
 }
diff --git a/src/modules/auth/providers/refresh-tokens.provider.ts b/src/modules/auth/providers/refresh-tokens.provider.ts
index 4fc660b..a2e7d25 100644
--- a/src/modules/auth/providers/refresh-tokens.provider.ts
+++ b/src/modules/auth/providers/refresh-tokens.provider.ts
@@ -40,38 +40,32 @@ export class RefreshTokensProvider {
   ) {}
 
   public async refreshTokens(refreshTokenDto: RefreshTokenDTO) {
-    try {
-      const payload = await this.jwtService.verifyAsync<RefreshTokenPayload>(
-        refreshTokenDto.refreshToken,
-        {
-          secret: this.jwtConfiguration.refresh.secret,
-          issuer: this.jwtConfiguration.issuer,
-          audience: this.jwtConfiguration.audience,
-        },
-      );
+    const payload = await this.jwtService.verifyAsync<RefreshTokenPayload>(
+      refreshTokenDto.refreshToken,
+      {
+        secret: this.jwtConfiguration.refresh.secret,
+        issuer: this.jwtConfiguration.issuer,
+        audience: this.jwtConfiguration.audience,
+      },
+    );
 
-      const user = await this.usersService.findOneById(payload.sub);
+    const user = await this.usersService.findOneById(payload.sub);
 
-      if (!payload.jti) {
-        throw new UnauthorizedException('auth.errors.unauthorized');
-      }
-
-      const existsInRedis = await this.authRedisProvider.hasRefreshToken(
-        payload.jti,
-      );
-
-      if (!existsInRedis) {
-        throw new UnauthorizedException('auth.errors.tokenReuse');
-      }
-
-      await this.authRedisProvider.revokeRefreshToken(payload.jti);
-
-      const newJti = randomUUID();
-      return await this.generateTokenProvider.generateTokens(user, newJti);
-    } catch (err) {
-      throw new UnauthorizedException('auth.errors.unauthorized', {
-        cause: err,
-      });
+    if (!payload.jti) {
+      throw new UnauthorizedException('auth.errors.unauthorized');
     }
+
+    const existsInRedis = await this.authRedisProvider.hasRefreshToken(
+      payload.jti,
+    );
+
+    if (!existsInRedis) {
+      throw new UnauthorizedException('auth.errors.tokenReuse');
+    }
+
+    await this.authRedisProvider.revokeRefreshToken(payload.jti);
+
+    const newJti = randomUUID();
+    return await this.generateTokenProvider.generateTokens(user, newJti);
   }
 }
diff --git a/src/modules/otp/entities/otp.entity.ts b/src/modules/otp/entities/otp.entity.ts
index ecfa1a3..80162ef 100644
--- a/src/modules/otp/entities/otp.entity.ts
+++ b/src/modules/otp/entities/otp.entity.ts
@@ -11,7 +11,7 @@ import {
 @Index(['phone', 'used'])
 export class OTP {
   @PrimaryGeneratedColumn()
-  id: number;
+  id!: number;
 
   @Index()
   @Column({
@@ -19,23 +19,23 @@ export class OTP {
     length: 11,
     nullable: false,
   })
-  phone: string;
+  phone!: string;
 
   @Column({
     type: 'varchar',
     nullable: false,
   })
-  code: string;
+  code!: string;
 
   @CreateDateColumn()
-  createdAt: Date;
+  createdAt!: Date;
 
   @Index()
   @Column({ type: 'timestamptz' })
-  expiresAt: Date;
+  expiresAt!: Date;
 
   @Column({ type: 'boolean', default: false })
-  used: boolean;
+  used!: boolean;
 
   @BeforeInsert()
   setExpiry() {
diff --git a/src/modules/questions/entities/choice.entity.ts b/src/modules/questions/entities/choice.entity.ts
index f365b72..34075ce 100644
--- a/src/modules/questions/entities/choice.entity.ts
+++ b/src/modules/questions/entities/choice.entity.ts
@@ -4,23 +4,23 @@ import { Question } from './question.entity';
 @Entity()
 export class Choice {
   @PrimaryGeneratedColumn()
-  id: number;
+  id!: number;
 
   @ManyToOne(() => Question, (question) => question.choices, {
     onDelete: 'CASCADE',
   })
-  question: Question;
+  question!: Question;
 
   @Column({
     type: 'varchar',
     length: 255,
     nullable: false,
   })
-  text: string;
+  text!: string;
 
   @Column({ type: 'int', nullable: false })
-  value: number;
+  value!: number;
 
   @Column({ type: 'int', nullable: false })
-  order: number;
+  order!: number;
 }
diff --git a/src/modules/questions/entities/question.entity.ts b/src/modules/questions/entities/question.entity.ts
index acbd6ca..1123aac 100644
--- a/src/modules/questions/entities/question.entity.ts
+++ b/src/modules/questions/entities/question.entity.ts
@@ -14,35 +14,35 @@ import { Choice } from './choice.entity';
 @Entity()
 export class Question {
   @PrimaryGeneratedColumn()
-  id: number;
+  id!: number;
 
   @ManyToOne(() => Test, (test) => test.questions, {
     onDelete: 'CASCADE',
   })
-  test: Test;
+  test!: Test;
 
   @Column({
     type: 'enum',
     enum: QuestionType,
     default: QuestionType.MULTI_CHOICE,
   })
-  type: QuestionType;
+  type!: QuestionType;
 
   @Column({ type: 'text' })
-  content: string;
+  content!: string;
 
   @Column({ type: 'int', nullable: false })
-  order: number;
+  order!: number;
 
   @Column({ type: 'boolean', default: true })
-  required: boolean;
+  required!: boolean;
 
   @Column({ type: 'jsonb', nullable: true })
-  metadata: QuestionMetadata;
+  metadata!: QuestionMetadata;
 
   @OneToMany(() => Choice, (choice) => choice.question)
   choices?: Array<Choice>;
 
   @CreateDateColumn()
-  createdAt: Date;
+  createdAt!: Date;
 }
diff --git a/src/modules/scoring/entities/rule-set.entity.ts b/src/modules/scoring/entities/rule-set.entity.ts
index 13f4b8d..4e725b0 100644
--- a/src/modules/scoring/entities/rule-set.entity.ts
+++ b/src/modules/scoring/entities/rule-set.entity.ts
@@ -10,11 +10,11 @@ import {
 @Entity()
 export class RuleSet {
   @PrimaryGeneratedColumn()
-  id: number;
+  id!: number;
 
   @OneToOne(() => Test, (test) => test.ruleSet)
   @JoinColumn()
-  test: Test;
+  test!: Test;
 
   @Column({ type: 'jsonb', nullable: false })
   config: any;
diff --git a/src/modules/submissions/entities/submission-answer.entity.ts b/src/modules/submissions/entities/submission-answer.entity.ts
index 185827b..4759b18 100644
--- a/src/modules/submissions/entities/submission-answer.entity.ts
+++ b/src/modules/submissions/entities/submission-answer.entity.ts
@@ -6,15 +6,15 @@ import { Choice } from '@/modules/questions/entities/choice.entity';
 @Entity()
 export class SubmissionAnswer {
   @PrimaryGeneratedColumn()
-  id: number;
+  id!: number;
 
   @ManyToOne(() => Submission, (submission) => submission.answers, {
     onDelete: 'CASCADE',
   })
-  submission: Submission;
+  submission!: Submission;
 
   @ManyToOne(() => Question, { onDelete: 'CASCADE' })
-  question: Question;
+  question!: Question;
 
   @ManyToOne(() => Choice, { nullable: true, onDelete: 'CASCADE' })
   choice?: Choice;
diff --git a/src/modules/submissions/entities/submission-result.entity.ts b/src/modules/submissions/entities/submission-result.entity.ts
index fcaeedc..8419b5a 100644
--- a/src/modules/submissions/entities/submission-result.entity.ts
+++ b/src/modules/submissions/entities/submission-result.entity.ts
@@ -13,20 +13,20 @@ import { ResultRange } from '@/modules/scoring/entities/result-range.entity';
 @Check(`"probability" >= 0 AND "probability" <= 100`)
 export class SubmissionResult {
   @PrimaryGeneratedColumn()
-  id: number;
+  id!: number;
 
   @ManyToOne(() => Submission, { onDelete: 'CASCADE' })
-  submission: Submission;
+  submission!: Submission;
 
   @Column({ type: 'int', nullable: false })
-  score: number;
+  score!: number;
 
   @Column({ type: 'int', nullable: false })
-  probability: number;
+  probability!: number;
 
   @ManyToOne(() => ResultRange, { onDelete: 'CASCADE' })
-  resultRange: ResultRange;
+  resultRange!: ResultRange;
 
   @CreateDateColumn()
-  createdAt: Date;
+  createdAt!: Date;
 }
diff --git a/src/modules/submissions/entities/submission.entity.ts b/src/modules/submissions/entities/submission.entity.ts
index 6bdd714..a0572bb 100644
--- a/src/modules/submissions/entities/submission.entity.ts
+++ b/src/modules/submissions/entities/submission.entity.ts
@@ -14,24 +14,24 @@ import { SubmissionAnswer } from './submission-answer.entity';
 @Entity()
 export class Submission {
   @PrimaryGeneratedColumn()
-  id: number;
+  id!: number;
 
   @ManyToOne(() => User, { nullable: true, onDelete: 'SET NULL' })
   user?: User;
 
   @ManyToOne(() => Test, { onDelete: 'CASCADE' })
-  test: Test;
+  test!: Test;
 
   @Column({
     type: 'enum',
     enum: SubmissionStatus,
     default: SubmissionStatus.IN_PROGRESS,
   })
-  status: SubmissionStatus;
+  status!: SubmissionStatus;
 
   @OneToMany(() => SubmissionAnswer, (answer) => answer.submission)
-  answers: Array<SubmissionAnswer>;
+  answers!: Array<SubmissionAnswer>;
 
   @CreateDateColumn()
-  createdAt: Date;
+  createdAt!: Date;
 }
diff --git a/src/modules/tests/decorators/price-access-type.decorator.ts b/src/modules/tests/decorators/price-access-type.decorator.ts
new file mode 100644
index 0000000..8b847a1
--- /dev/null
+++ b/src/modules/tests/decorators/price-access-type.decorator.ts
@@ -0,0 +1,6 @@
+import { Validate } from 'class-validator';
+import { PriceAccessTypeConstraint } from '../validators/price-access-type-constraint.validator';
+
+export const PriceAccessType = () => {
+  return Validate(PriceAccessTypeConstraint);
+};
diff --git a/src/modules/tests/dtos/create-test.dto.ts b/src/modules/tests/dtos/create-test.dto.ts
index b024957..ea316b4 100644
--- a/src/modules/tests/dtos/create-test.dto.ts
+++ b/src/modules/tests/dtos/create-test.dto.ts
@@ -9,6 +9,7 @@ import {
 } from 'class-validator';
 import { i18nValidationMessage as t } from 'nestjs-i18n';
 import { AccessType } from '../enums/access-types.enum';
+import { PriceAccessType } from '../decorators/price-access-type.decorator';
 
 export class CreateTestDTO {
   @IsString()
@@ -23,7 +24,7 @@ export class CreateTestDTO {
       max: 255,
     }),
   })
-  title: string;
+  title!: string;
 
   @IsString()
   @IsNotEmpty({
@@ -31,7 +32,7 @@ export class CreateTestDTO {
       field: '$t(tests.fields.description)',
     }),
   })
-  description: string;
+  description!: string;
 
   @IsEnum(AccessType)
   @IsOptional()
@@ -45,4 +46,7 @@ export class CreateTestDTO {
   @IsBoolean()
   @IsOptional()
   isActive?: boolean;
+
+  @PriceAccessType()
+  private readonly _priceAccessValidation!: never;
 }
diff --git a/src/modules/tests/dtos/update-test.dto.ts b/src/modules/tests/dtos/update-test.dto.ts
new file mode 100644
index 0000000..dbc9a30
--- /dev/null
+++ b/src/modules/tests/dtos/update-test.dto.ts
@@ -0,0 +1,4 @@
+import { PartialType } from '@nestjs/swagger';
+import { CreateTestDTO } from './create-test.dto';
+
+export class UpdateTestDTO extends PartialType(CreateTestDTO) {}
diff --git a/src/modules/tests/entities/test.entity.ts b/src/modules/tests/entities/test.entity.ts
index dcef869..653322b 100644
--- a/src/modules/tests/entities/test.entity.ts
+++ b/src/modules/tests/entities/test.entity.ts
@@ -1,4 +1,5 @@
 import {
+  Check,
   Column,
   CreateDateColumn,
   Entity,
@@ -12,9 +13,14 @@ import { ResultRange } from '@/modules/scoring/entities/result-range.entity';
 import { RuleSet } from '@/modules/scoring/entities/rule-set.entity';
 
 @Entity()
+@Check(`
+  ("price" IS NULL AND "accessType" <> 'paid')
+  OR
+  ("price" IS NOT NULL AND "accessType" = 'paid')
+`)
 export class Test {
   @PrimaryGeneratedColumn()
-  id: number;
+  id!: number;
 
   @Column({
     type: 'varchar',
@@ -22,42 +28,42 @@ export class Test {
     nullable: false,
     unique: true,
   })
-  title: string;
+  title!: string;
 
   @Column({
     type: 'text',
     nullable: false,
   })
-  description: string;
+  description!: string;
 
   @Column({
     type: 'enum',
     enum: AccessType,
     default: AccessType.LOGIN,
   })
-  accessType: AccessType;
+  accessType!: AccessType;
 
   @Column({
     type: 'bigint',
     nullable: true,
   })
-  price: string;
+  price!: string;
 
   @Column({
     type: 'boolean',
     default: false,
   })
-  isActive: boolean;
+  isActive!: boolean;
 
   @OneToMany(() => Question, (question) => question.test)
-  questions: Array<Question>;
+  questions!: Array<Question>;
 
   @OneToOne(() => RuleSet, (ruleSet) => ruleSet.test)
-  ruleSet: RuleSet;
+  ruleSet!: RuleSet;
 
   @OneToMany(() => ResultRange, (range) => range.test)
-  resultRanges: Array<ResultRange>;
+  resultRanges!: Array<ResultRange>;
 
   @CreateDateColumn()
-  createdAt: Date;
+  createdAt!: Date;
 }
diff --git a/src/modules/tests/http/tests.get.endpoints.http b/src/modules/tests/http/tests.get.endpoints.http
new file mode 100644
index 0000000..71cbcaf
--- /dev/null
+++ b/src/modules/tests/http/tests.get.endpoints.http
@@ -0,0 +1,3 @@
+GET http://localhost:3000/tests
+
+GET http://localhost:3000/tests/4
diff --git a/src/modules/tests/providers/tests.service.ts b/src/modules/tests/providers/tests.service.ts
index 38e8ce3..7da84eb 100644
--- a/src/modules/tests/providers/tests.service.ts
+++ b/src/modules/tests/providers/tests.service.ts
@@ -1,6 +1,8 @@
 import {
+  BadRequestException,
   HttpStatus,
   Injectable,
+  NotFoundException,
   RequestTimeoutException,
 } from '@nestjs/common';
 import { Repository } from 'typeorm';
@@ -10,6 +12,8 @@ import { CreateTestDTO } from '../dtos/create-test.dto';
 import { AppException } from '@/common/exceptions/app.exception';
 import { AppResponse } from '@/common/responses';
 import { I18nService } from 'nestjs-i18n';
+import { UpdateTestDTO } from '../dtos/update-test.dto';
+import { AccessType } from '../enums/access-types.enum';
 
 @Injectable()
 export class TestsService {
@@ -54,4 +58,106 @@ export class TestsService {
       });
     }
   }
+
+  public async adminGetAll() {
+    try {
+      return await this.testRepository.find({ order: { createdAt: 'DESC' } });
+    } catch (err) {
+      throw new RequestTimeoutException('common.errors.requestTimeout', {
+        cause: err,
+        description: 'Error connecting to the database',
+      });
+    }
+  }
+
+  public async userGetAll() {
+    try {
+      return await this.testRepository.find({
+        where: { isActive: true },
+        select: {
+          id: true,
+          accessType: true,
+          description: true,
+          price: true,
+          title: true,
+        },
+        order: { createdAt: 'DESC' },
+      });
+    } catch (err) {
+      throw new RequestTimeoutException('common.errors.requestTimeout', {
+        cause: err,
+        description: 'Error connecting to the database',
+      });
+    }
+  }
+
+  public async adminGetOne(id: number) {
+    try {
+      return await this.testRepository.findOneBy({ id });
+    } catch (err) {
+      throw new RequestTimeoutException('common.errors.requestTimeout', {
+        cause: err,
+        description: 'Error connecting to the database',
+      });
+    }
+  }
+
+  public async userGetOne(id: number) {
+    let test: Test | null;
+
+    try {
+      test = await this.testRepository.findOne({
+        where: { id, isActive: true },
+        select: {
+          id: true,
+          accessType: true,
+          description: true,
+          price: true,
+          title: true,
+        },
+      });
+    } catch (err) {
+      throw new RequestTimeoutException('common.errors.requestTimeout', {
+        cause: err,
+        description: 'Error connecting to the database',
+      });
+    }
+
+    if (!test) {
+      throw new NotFoundException('tests.errors.testNotFound');
+    }
+
+    return test;
+  }
+
+  public async updateOne(id: number, updateTestDto: UpdateTestDTO) {
+    const test = await this.testRepository.findOneBy({ id });
+
+    if (!test) {
+      throw new NotFoundException('tests.errors.testNotFound');
+    }
+
+    const accessType = updateTestDto.accessType ?? test.accessType;
+    const price = updateTestDto.price ?? test.price;
+
+    if (
+      (accessType === AccessType.PAID && !price) ||
+      (accessType !== AccessType.PAID && price)
+    ) {
+      throw new BadRequestException(
+        this.i18nService.translate('tests.errors.priceAccessConstraint'),
+      );
+    }
+
+    Object.assign(test, updateTestDto);
+
+    try {
+      return await this.testRepository.save(test);
+    } catch (err) {
+      throw new RequestTimeoutException('common.errors.requestTimeout', {
+        cause: err,
+        description: 'Error connecting to the database',
+      });
+    }
+  }
 }
diff --git a/src/modules/tests/tests.controller.ts b/src/modules/tests/tests.controller.ts
new file mode 100644
index 0000000..c7c9e65
--- /dev/null
+++ b/src/modules/tests/tests.controller.ts
@@ -0,0 +1,25 @@
+import { Controller, Get, Param, ParseIntPipe } from '@nestjs/common';
+import { TestsService } from './providers/tests.service';
+import { Public } from '../auth/decorators/public.decorator';
+
+@Controller('tests')
+export class TestsController {
+  constructor(
+    /**
+     * Inject Tests Service
+     */
+    private readonly testsService: TestsService,
+  ) {}
+
+  @Public()
+  @Get()
+  public async getAllTests() {
+    return await this.testsService.userGetAll();
+  }
+
+  @Public()
+  @Get(':id')
+  public async getTestById(@Param('id', ParseIntPipe) id: number) {
+    return await this.testsService.userGetOne(id);
+  }
+}
diff --git a/src/modules/tests/tests.module.ts b/src/modules/tests/tests.module.ts
index 881eff5..af066df 100644
--- a/src/modules/tests/tests.module.ts
+++ b/src/modules/tests/tests.module.ts
@@ -2,9 +2,11 @@ import { Module } from '@nestjs/common';
 import { TypeOrmModule } from '@nestjs/typeorm';
 import { Test } from './entities/test.entity';
 import { TestsService } from './providers/tests.service';
+import { TestsController } from './tests.controller';
 
 @Module({
   imports: [TypeOrmModule.forFeature([Test])],
+  controllers: [TestsController],
   providers: [TestsService],
   exports: [TestsService],
 })
diff --git a/src/modules/tests/validators/price-access-type-constraint.validator.ts b/src/modules/tests/validators/price-access-type-constraint.validator.ts
new file mode 100644
index 0000000..69a9812
--- /dev/null
+++ b/src/modules/tests/validators/price-access-type-constraint.validator.ts
@@ -0,0 +1,34 @@
+import {
+  ValidationArguments,
+  ValidatorConstraint,
+  ValidatorConstraintInterface,
+} from 'class-validator';
+import { AccessType } from '../enums/access-types.enum';
+import { I18nContext } from 'nestjs-i18n';
+
+@ValidatorConstraint({ name: 'priceAccessType' })
+export class PriceAccessTypeConstraint implements ValidatorConstraintInterface {
+  validate(
+    _: any,
+    validationArguments?: ValidationArguments,
+  ): Promise<boolean> | boolean {
+    console.log('This is happening');
+
+    // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+    const obj = validationArguments?.object as any;
+    // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+    const { price, accessType } = obj;
+
+    return (
+      (accessType === AccessType.PAID && price != null) ||
+      (accessType !== AccessType.PAID && price == null)
+    );
+  }
+  defaultMessage(): string {
+    const i18n = I18nContext.current();
+    return (
+      i18n?.t('tests.errors.priceAccessConstraint') ??
+      "Test's price depends to access type of 'Paid'."
+    );
+  }
+}