diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..7581cbf
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,7 @@
+{
+    "python.testing.pytestArgs": [
+        "backend"
+    ],
+    "python.testing.unittestEnabled": false,
+    "python.testing.pytestEnabled": true
+}
\ No newline at end of file
diff --git a/backend/entities/__init__.py b/backend/entities/__init__.py
index 0b82067..546a7b5 100644
--- a/backend/entities/__init__.py
+++ b/backend/entities/__init__.py
@@ -1,10 +1,9 @@
 from .entity_base import EntityBase
-from .sample_entity import SampleEntity
 from .tag_entity import TagEntity
 from .user_entity import UserEntity
 from .resource_entity import ResourceEntity
 from .resource_tag_entity import ResourceTagEntity
 from .service_entity import ServiceEntity
 from .service_tag_entity import ServiceTagEntity
-from .program_enum import ProgramEnum
-from .user_enum import RoleEnum
+from .program_enum import Program_Enum
+from .user_enum import Role_Enum
diff --git a/backend/entities/program_enum.py b/backend/entities/program_enum.py
index 3a207bd..c2823c2 100644
--- a/backend/entities/program_enum.py
+++ b/backend/entities/program_enum.py
@@ -1,10 +1,7 @@
-from sqlalchemy import Enum
+from enum import Enum
 
 
-class ProgramEnum(Enum):
-    ECONOMIC = "economic"
-    DOMESTIC = "domestic"
-    COMMUNITY = "community"
-
-    def __init__(self):
-        super().__init__(name="program_enum")
+class Program_Enum(Enum):
+    ECONOMIC = "ECONOMIC"
+    DOMESTIC = "DOMESTIC"
+    COMMUNITY = "COMMUNITY"
diff --git a/backend/entities/resource_entity.py b/backend/entities/resource_entity.py
index b38e625..cbe5d7c 100644
--- a/backend/entities/resource_entity.py
+++ b/backend/entities/resource_entity.py
@@ -1,7 +1,7 @@
 """ Defines the table for storing resources """
 
 # Import our mapped SQL types from SQLAlchemy
-from sqlalchemy import Integer, String, DateTime
+from sqlalchemy import Integer, String, DateTime, Enum
 
 # Import mapping capabilities from the SQLAlchemy ORM
 from sqlalchemy.orm import Mapped, mapped_column, relationship
@@ -14,7 +14,7 @@ from datetime import datetime
 
 # Import self for to model
 from typing import Self
-from backend.entities.program_enum import ProgramEnum
+from backend.entities.program_enum import Program_Enum
 
 
 class ResourceEntity(EntityBase):
@@ -28,8 +28,7 @@ class ResourceEntity(EntityBase):
     name: Mapped[str] = mapped_column(String(32), nullable=False)
     summary: Mapped[str] = mapped_column(String(100), nullable=False)
     link: Mapped[str] = mapped_column(String, nullable=False)
-    program: Mapped[ProgramEnum] = mapped_column(ProgramEnum, nullable=False)
-
+    program: Mapped[Program_Enum] = mapped_column(Enum(Program_Enum), nullable=False)
     # relationships
     resourceTags: Mapped[list["ResourceTagEntity"]] = relationship(
         back_populates="resource", cascade="all,delete"
diff --git a/backend/entities/resource_tag_entity.py b/backend/entities/resource_tag_entity.py
index f1de522..e6d863b 100644
--- a/backend/entities/resource_tag_entity.py
+++ b/backend/entities/resource_tag_entity.py
@@ -19,7 +19,7 @@ from typing import Self
 class ResourceTagEntity(EntityBase):
 
     # set table name to user in the database
-    __tablename__ = "resourceTag"
+    __tablename__ = "resource_tag"
 
     # set fields or 'columns' for the user table
     id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
diff --git a/backend/entities/sample_entity.py b/backend/entities/sample_entity.py
deleted file mode 100644
index 5372899..0000000
--- a/backend/entities/sample_entity.py
+++ /dev/null
@@ -1,12 +0,0 @@
-from sqlalchemy import create_engine, Column, Integer, String
-from sqlalchemy.orm import Mapped, mapped_column, relationship
-from .entity_base import EntityBase
-
-
-class SampleEntity(EntityBase):
-    __tablename__ = "persons"
-
-    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
-    name: Mapped[str] = mapped_column(String, nullable=False)
-    age: Mapped[int] = mapped_column(Integer)
-    email: Mapped[str] = mapped_column(String, unique=True, nullable=False)
diff --git a/backend/entities/service_entity.py b/backend/entities/service_entity.py
index e927be7..b6f999a 100644
--- a/backend/entities/service_entity.py
+++ b/backend/entities/service_entity.py
@@ -13,18 +13,10 @@ from .entity_base import EntityBase
 from datetime import datetime
 
 # Import enums for Program
-import enum
+from .program_enum import Program_Enum
 from sqlalchemy import Enum
 
 
-class ProgramEnum(enum.Enum):
-    """Determine program for Service"""
-
-    DOMESTIC = "DOMESTIC"
-    ECONOMIC = "ECONOMIC"
-    COMMUNITY = "COMMUNITY"
-
-
 class ServiceEntity(EntityBase):
 
     # set table name
@@ -36,7 +28,7 @@ class ServiceEntity(EntityBase):
     name: Mapped[str] = mapped_column(String(32), nullable=False)
     summary: Mapped[str] = mapped_column(String(100), nullable=False)
     requirements: Mapped[list[str]] = mapped_column(ARRAY(String))
-    program: Mapped[ProgramEnum] = mapped_column(Enum(ProgramEnum), nullable=False)
+    program: Mapped[Program_Enum] = mapped_column(Enum(Program_Enum), nullable=False)
 
     # relationships
     serviceTags: Mapped[list["ServiceTagEntity"]] = relationship(
diff --git a/backend/entities/service_tag_entity.py b/backend/entities/service_tag_entity.py
index c1dbdc7..0f05738 100644
--- a/backend/entities/service_tag_entity.py
+++ b/backend/entities/service_tag_entity.py
@@ -13,7 +13,7 @@ from .entity_base import EntityBase
 class ServiceTagEntity(EntityBase):
 
     # set table name to user in the database
-    __tablename__ = "serviceTag"
+    __tablename__ = "service_tag"
 
     # set fields or 'columns' for the user table
     id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
@@ -21,5 +21,5 @@ class ServiceTagEntity(EntityBase):
     tagId: Mapped[int] = mapped_column(ForeignKey("tag.id"))
 
     # relationships
-    service: Mapped["ServiceEntity"] = relationship(back_populates="resourceTags")
-    tag: Mapped["TagEntity"] = relationship(back_populates="resourceTags")
+    service: Mapped["ServiceEntity"] = relationship(back_populates="serviceTags")
+    tag: Mapped["TagEntity"] = relationship(back_populates="serviceTags")
diff --git a/backend/entities/tag_entity.py b/backend/entities/tag_entity.py
index e61f1ee..0d1548b 100644
--- a/backend/entities/tag_entity.py
+++ b/backend/entities/tag_entity.py
@@ -12,6 +12,10 @@ from .entity_base import EntityBase
 # Import datetime for created_at type
 from datetime import datetime
 
+from ..models.tag_model import Tag
+
+from typing import Self
+
 class TagEntity(EntityBase):
 
     #set table name
@@ -27,17 +31,17 @@ class TagEntity(EntityBase):
     serviceTags: Mapped[list["ServiceTagEntity"]] = relationship(back_populates="tag", cascade="all,delete")
 
   
-    """
+    
     @classmethod
     def from_model(cls, model: Tag) -> Self:
-        
+        """
         Create a user entity from model
 
         Args: model (User): the model to create the entity from
 
         Returns:
             self: The entity
-        
+        """
             
         return cls(
             id=model.id,
@@ -45,18 +49,17 @@ class TagEntity(EntityBase):
         )
 
     def to_model(self) -> Tag:
-        
+        """
         Create a user model from entity
 
         Returns:
             User: A User model for API usage
-        
+        """
 
         return Tag(
             id=self.id,
-            content=self.id,
+            content=self.content,
         )
 
-    """
 
 
diff --git a/backend/entities/user_entity.py b/backend/entities/user_entity.py
index 8f82e4d..ebc7a87 100644
--- a/backend/entities/user_entity.py
+++ b/backend/entities/user_entity.py
@@ -1,24 +1,25 @@
 """ Defines the table for storing users """
 
 # Import our mapped SQL types from SQLAlchemy
-from sqlalchemy import Integer, String, DateTime, ARRAY
-
+from sqlalchemy import Integer, String, DateTime, ARRAY, Enum
 
 # Import mapping capabilities from the SQLAlchemy ORM
 from sqlalchemy.orm import Mapped, mapped_column
 
-
 # Import the EntityBase that we are extending
 from .entity_base import EntityBase
 
-
 # Import datetime for created_at type
 from datetime import datetime
 
-
 # Import enums for Role and Program
-from backend.entities.program_enum import ProgramEnum
-from .user_enum import RoleEnum
+from .program_enum import Program_Enum
+from .user_enum import Role_Enum
+
+# Import models for User methods
+from ..models.user_model import User
+
+from typing import Self
 
 
 class UserEntity(EntityBase):
@@ -33,35 +34,28 @@ class UserEntity(EntityBase):
     username: Mapped[str] = mapped_column(
         String(32), nullable=False, default="", unique=True
     )
-    role: Mapped[RoleEnum] = mapped_column(RoleEnum, nullable=False)
-    username: Mapped[str] = mapped_column(
-        String(32), nullable=False, default="", unique=True
-    )
-    role: Mapped[RoleEnum] = mapped_column(RoleEnum, nullable=False)
+    role: Mapped[Role_Enum] = mapped_column(Enum(Role_Enum), nullable=False)
     email: Mapped[str] = mapped_column(String(50), nullable=False, unique=True)
-    program: Mapped[list[ProgramEnum]] = mapped_column(
-        ARRAY(ProgramEnum), nullable=False
-    )
-    program: Mapped[list[ProgramEnum]] = mapped_column(
-        ARRAY(ProgramEnum), nullable=False
+    program: Mapped[list[Program_Enum]] = mapped_column(
+        ARRAY(Enum(Program_Enum)), nullable=False
     )
     experience: Mapped[int] = mapped_column(Integer, nullable=False)
     group: Mapped[str] = mapped_column(String(50))
 
-    """
     @classmethod
     def from_model(cls, model: User) -> Self:
-        
+        """
         Create a user entity from model
 
         Args: model (User): the model to create the entity from
 
         Returns:
             self: The entity
-        
+        """
 
         return cls(
             id=model.id,
+            created_at=model.created_at,
             username=model.username,
             role=model.role,
             email=model.email,
@@ -71,20 +65,22 @@ class UserEntity(EntityBase):
         )
 
     def to_model(self) -> User:
-        
+        """
+
         Create a user model from entity
 
         Returns:
             User: A User model for API usage
-        
+
+        """
 
         return User(
             id=self.id,
-            username=self.id,
-            role=self.role, 
+            username=self.username,
             email=self.email,
-            program=self.program,
             experience=self.experience,
             group=self.group,
+            program=self.program,
+            role=self.role,
+            created_at=self.created_at,
         )
-    """
diff --git a/backend/entities/user_enum.py b/backend/entities/user_enum.py
index 99594ec..af5aba6 100644
--- a/backend/entities/user_enum.py
+++ b/backend/entities/user_enum.py
@@ -1,12 +1,9 @@
-from sqlalchemy import Enum
+from enum import Enum
 
 
-class RoleEnum(Enum):
+class Role_Enum(Enum):
     """Determine role for User"""
 
     ADMIN = "ADMIN"
     EMPLOYEE = "EMPLOYEE"
     VOLUNTEER = "VOLUNTEER"
-
-    def __init__(self):
-        super().__init__(name="role_enum")
diff --git a/backend/models/enum_for_models.py b/backend/models/enum_for_models.py
index 8e6cdfe..ce2eb30 100644
--- a/backend/models/enum_for_models.py
+++ b/backend/models/enum_for_models.py
@@ -1,8 +1,4 @@
-from pydantic import BaseModel, Field
 from enum import Enum
-from typing import List
-from datetime import datetime
-from typing import Optional
 
 
 class ProgramTypeEnum(str, Enum):
diff --git a/backend/models/user_model.py b/backend/models/user_model.py
index c881d54..1ba4e18 100644
--- a/backend/models/user_model.py
+++ b/backend/models/user_model.py
@@ -12,6 +12,6 @@ class User(BaseModel):
     email: str = Field(..., description="The e-mail of the user")
     experience: int = Field(..., description="Years of Experience of the User")
     group: str
-    programtype: List[ProgramTypeEnum]
-    usertype: UserTypeEnum
+    program: List[ProgramTypeEnum]
+    role: UserTypeEnum
     created_at: Optional[datetime]
diff --git a/backend/script/create_database.py b/backend/script/create_database.py
index f969f0b..54babaf 100644
--- a/backend/script/create_database.py
+++ b/backend/script/create_database.py
@@ -6,9 +6,7 @@ engine = create_engine(_engine_str(database=""), echo=True)
 """Application-level SQLAlchemy database engine."""
 
 with engine.connect() as connection:
-    connection.execute(
-        text("COMMIT")
-    )
+    connection.execute(text("COMMIT"))
     database = getenv("POSTGRES_DATABASE")
     stmt = text(f"CREATE DATABASE {database}")
-    connection.execute(stmt)
\ No newline at end of file
+    connection.execute(stmt)
diff --git a/backend/script/delete_database.py b/backend/script/delete_database.py
index 513aec4..707c63a 100644
--- a/backend/script/delete_database.py
+++ b/backend/script/delete_database.py
@@ -6,9 +6,7 @@ engine = create_engine(_engine_str(database=""), echo=True)
 """Application-level SQLAlchemy database engine."""
 
 with engine.connect() as connection:
-    connection.execute(
-        text("COMMIT")
-    )
+    connection.execute(text("COMMIT"))
     database = getenv("POSTGRES_DATABASE")
     stmt = text(f"DROP DATABASE IF EXISTS {database}")
-    connection.execute(stmt)
\ No newline at end of file
+    connection.execute(stmt)
diff --git a/backend/services/__init__.py b/backend/services/__init__.py
index e69de29..4067973 100644
--- a/backend/services/__init__.py
+++ b/backend/services/__init__.py
@@ -0,0 +1,4 @@
+from .user import UserService
+from .resource import ResourceService
+from .tag import TagService
+from .service import ServiceService
\ No newline at end of file
diff --git a/backend/services/resouce.py b/backend/services/resource.py
similarity index 100%
rename from backend/services/resouce.py
rename to backend/services/resource.py
diff --git a/backend/services/tag.py b/backend/services/tag.py
index b66f1fe..dfc369a 100644
--- a/backend/services/tag.py
+++ b/backend/services/tag.py
@@ -1,9 +1,20 @@
 from fastapi import Depends
 from ..database import db_session
 from sqlalchemy.orm import Session
+from ..models.tag_model import Tag
+from ..entities.tag_entity import TagEntity
+from sqlalchemy import select
 
 
 class TagService:
 
     def __init__(self, session: Session = Depends(db_session)):
         self._session = session
+
+    def all(self) -> list[Tag]:
+        """Returns a list of all Tags"""
+
+        query = select(TagEntity)   
+        entities = self._session.scalars(query).all()
+
+        return [entity.to_model() for entity in entities]
diff --git a/backend/services/user.py b/backend/services/user.py
index 629e22b..8e0b541 100644
--- a/backend/services/user.py
+++ b/backend/services/user.py
@@ -1,9 +1,59 @@
 from fastapi import Depends
 from ..database import db_session
 from sqlalchemy.orm import Session
+from ..entities.user_entity import UserEntity
+from ..models.user_model import User
+from sqlalchemy import select
 
 
 class UserService:
 
     def __init__(self, session: Session = Depends(db_session)):
         self._session = session
+
+    def get_user_by_id(self, id: int) -> User:
+        """
+        Gets a user by id from the database
+
+        Returns: A User Pydantic model
+
+        """
+        query = select(UserEntity).where(UserEntity.id == id)
+        user_entity: UserEntity | None = self._session.scalar(query)
+
+        if user_entity is None:
+            raise Exception(f"No user found with matching id: {id}")
+
+        return user_entity.to_model()
+
+    def all(self) -> list[User]:
+        """
+        Returns a list of all Users
+
+        """
+        query = select(UserEntity)
+        entities = self._session.scalars(query).all()
+
+        return [entity.to_model() for entity in entities]
+
+    def create(self, user: User) -> User:
+        """
+        Creates a new User Entity and adds to database
+
+        Args: User model
+
+        Returns: User model
+
+        """
+        try:
+            user = self.get_user_by_id(user.id)
+        except:
+            # if does not exist, create new object
+            user_entity = UserEntity.from_model(user)
+
+            # add new user to table
+            self._session.add(user_entity)
+            self._session.commit()
+        finally:
+            # return added object
+            return user
diff --git a/backend/test/entities/conftest.py b/backend/test/conftest.py
similarity index 78%
rename from backend/test/entities/conftest.py
rename to backend/test/conftest.py
index 63e15a5..777b219 100644
--- a/backend/test/entities/conftest.py
+++ b/backend/test/conftest.py
@@ -4,14 +4,16 @@ import pytest
 from sqlalchemy import Engine, create_engine, text
 from sqlalchemy.orm import Session
 from sqlalchemy.exc import OperationalError
+from .services import user_test_data, tag_test_data
 
-from ...database import _engine_str
-from ...env import getenv
-from ... import entities
+from ..database import _engine_str
+from ..env import getenv
+from .. import entities
 
 POSTGRES_DATABASE = f'{getenv("POSTGRES_DATABASE")}_test'
 POSTGRES_USER = getenv("POSTGRES_USER")
 
+
 def reset_database():
     engine = create_engine(_engine_str(database=""))
     with engine.connect() as connection:
@@ -48,3 +50,11 @@ def session(test_engine: Engine):
         yield session
     finally:
         session.close()
+
+
+@pytest.fixture(autouse=True)
+def setup_insert_data_fixture(session: Session):
+    user_test_data.insert_fake_data(session)
+    tag_test_data.insert_fake_data(session)
+    session.commit()
+    yield
diff --git a/backend/test/entities/tag_entity_test.py b/backend/test/entities/tag_entity_test.py
index b2b2f7f..7f58b58 100644
--- a/backend/test/entities/tag_entity_test.py
+++ b/backend/test/entities/tag_entity_test.py
@@ -1,19 +1,4 @@
-""" Testing Tag Entity """
 
-from sqlalchemy import Engine
-from ... import entities
-from ...entities.tag_entity import TagEntity
-
-
-def test_add_sample_data_tag(session: Engine):
-
-    """Inserts a sample data point and verifies it is in the database"""
-    entity = TagEntity(content="Test tag")
-    session.add(entity)
-    session.commit()
-    data = session.get(TagEntity, 1)
-    assert data.id == 1
-    assert data.content == "Test tag"
     
 
     
\ No newline at end of file
diff --git a/backend/test/entities/user_entity_test.py b/backend/test/entities/user_entity_test.py
index 1f775ce..e69de29 100644
--- a/backend/test/entities/user_entity_test.py
+++ b/backend/test/entities/user_entity_test.py
@@ -1,24 +0,0 @@
-""" Testing User Entity """
-
-from sqlalchemy import Engine
-from ... import entities
-from ...entities.user_entity import UserEntity
-from ...entities.user_entity import RoleEnum
-from ...entities.user_entity import ProgramEnum
-
-def test_add_sample_data_user(session: Engine):
-
-
-    """Inserts a sample data point and verifies it is in the database"""
-    entity = UserEntity(id=1, username="emmalynf", role=RoleEnum.ADMIN, email="efoster@unc.edu", program=[ProgramEnum.COMMUNITY, ProgramEnum.DOMESTIC, ProgramEnum.ECONOMIC], experience=10, group="group")
-    session.add(entity)
-    session.commit()
-    data = session.get(UserEntity, 1)
-    assert data.id == 1
-    assert data.username == "emmalynf"
-    assert data.email == "efoster@unc.edu"
-    assert data.experience == 10
-    assert data.role == RoleEnum.ADMIN
-    assert data.program == [ProgramEnum.COMMUNITY, ProgramEnum.DOMESTIC, ProgramEnum.ECONOMIC]
-
-    
\ No newline at end of file
diff --git a/backend/test/services/__init__.py b/backend/test/services/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/test/services/fixtures.py b/backend/test/services/fixtures.py
new file mode 100644
index 0000000..e6fd67b
--- /dev/null
+++ b/backend/test/services/fixtures.py
@@ -0,0 +1,20 @@
+"""Fixtures used for testing the core services."""
+
+import pytest
+from unittest.mock import create_autospec
+from sqlalchemy.orm import Session
+from ...services import UserService
+from ...services import TagService
+
+
+
+
+@pytest.fixture()
+def user_svc(session: Session):
+    """This fixture is used to test the UserService class"""
+    return UserService(session)
+
+@pytest.fixture()
+def tag_svc(session: Session):
+    """This fixture is used to test the TagService class"""
+    return TagService(session)
diff --git a/backend/test/services/tag_test.py b/backend/test/services/tag_test.py
index e69de29..fe7597c 100644
--- a/backend/test/services/tag_test.py
+++ b/backend/test/services/tag_test.py
@@ -0,0 +1,14 @@
+"""Tests for the TagService class."""
+
+# PyTest
+import pytest
+from ...services.tag import TagService
+from .fixtures import tag_svc
+from .tag_test_data import tag1, tag2, tag3
+from . import tag_test_data
+
+
+def test_get_all(tag_svc: TagService):
+    """Test that all tags can be retrieved."""
+    tags = tag_svc.all()
+    assert len(tags) == 3
\ No newline at end of file
diff --git a/backend/test/services/tag_test_data.py b/backend/test/services/tag_test_data.py
new file mode 100644
index 0000000..cb16e5c
--- /dev/null
+++ b/backend/test/services/tag_test_data.py
@@ -0,0 +1,72 @@
+import pytest
+from sqlalchemy.orm import Session
+from ...models.tag_model import Tag
+
+from ...entities.tag_entity import TagEntity
+from datetime import datetime
+
+tag1 = Tag(id=1, content="Tag 1", created_at=datetime.now())
+
+tag2 = Tag(id=2, content="Tag 2", created_at=datetime.now())
+
+tag3 = Tag(id=3, content="Tag 3", created_at=datetime.now())
+
+tagToCreate = Tag(id=4, content="Tag 4", created_at=datetime.now())
+
+tags = [tag1, tag2, tag3]
+
+
+from sqlalchemy import text
+from sqlalchemy.orm import Session, DeclarativeBase, InstrumentedAttribute
+
+
+def reset_table_id_seq(
+    session: Session,
+    entity: type[DeclarativeBase],
+    entity_id_column: InstrumentedAttribute[int],
+    next_id: int,
+) -> None:
+    """Reset the ID sequence of an entity table.
+
+    Args:
+        session (Session) - A SQLAlchemy Session
+        entity (DeclarativeBase) - The SQLAlchemy Entity table to target
+        entity_id_column (MappedColumn) - The ID column (should be an int column)
+        next_id (int) - Where the next inserted, autogenerated ID should begin
+
+    Returns:
+        None"""
+    table = entity.__table__
+    id_column_name = entity_id_column.name
+    sql = text(f"ALTER SEQUENCe {table}_{id_column_name}_seq RESTART WITH {next_id}")
+    session.execute(sql)
+
+
+def insert_fake_data(session: Session):
+    """Inserts fake organization data into the test session."""
+
+    global tags
+
+    # Create entities for test organization data
+    entities = []
+    for tag in tags:
+        entity = TagEntity.from_model(tag)
+        session.add(entity)
+        entities.append(entity)
+
+    # Reset table IDs to prevent ID conflicts
+    reset_table_id_seq(session, TagEntity, TagEntity.id, len(tags) + 1)
+
+    # Commit all changes
+    session.commit()
+
+
+@pytest.fixture(autouse=True)
+def fake_data_fixture(session: Session):
+    """Insert fake data the session automatically when test is run.
+    Note:
+        This function runs automatically due to the fixture property `autouse=True`.
+    """
+    insert_fake_data(session)
+    session.commit()
+    yield
diff --git a/backend/test/services/user_test.py b/backend/test/services/user_test.py
index e69de29..34795a5 100644
--- a/backend/test/services/user_test.py
+++ b/backend/test/services/user_test.py
@@ -0,0 +1,46 @@
+"""Tests for the UserService class."""
+
+# PyTest
+import pytest
+
+from ...services import UserService
+from .fixtures import user_svc
+from ...models.enum_for_models import ProgramTypeEnum
+
+from .user_test_data import employee, volunteer, admin, newUser
+from . import user_test_data
+
+
+def test_create(user_svc: UserService):
+    """Test creating a user"""
+    user1 = user_svc.create(admin)
+
+    print(user1)
+    assert user1 is not None
+    assert user1.id is not None
+
+
+def test_create_id_exists(user_svc: UserService):
+    """Test creating a user with id conflict"""
+    user1 = user_svc.create(volunteer)
+    assert user1 is not None
+    assert user1.id is not None
+
+
+def test_get_all(user_svc: UserService):
+    """Test that all users can be retrieved."""
+    users = user_svc.all()
+    assert len(users) == 3
+
+
+def test_get_user_by_id(user_svc: UserService):
+    """Test getting a user by an id"""
+    user = user_svc.get_user_by_id(volunteer.id)
+    assert user is not None
+    assert user.id is not None
+
+
+def test_get_user_by_id_nonexistent(user_svc: UserService):
+    """Test getting a user by id that does not exist"""
+    with pytest.raises(Exception):
+        user_svc.get_by_id(5)
diff --git a/backend/test/services/user_test_data.py b/backend/test/services/user_test_data.py
new file mode 100644
index 0000000..e050bda
--- /dev/null
+++ b/backend/test/services/user_test_data.py
@@ -0,0 +1,118 @@
+import pytest
+from sqlalchemy.orm import Session
+from ...models.user_model import User
+
+# import model enums instead
+from ...models.enum_for_models import UserTypeEnum, ProgramTypeEnum
+from ...entities.user_entity import UserEntity
+from datetime import datetime
+
+
+programs = ProgramTypeEnum
+roles = UserTypeEnum
+
+volunteer = User(
+    id=1,
+    username="volunteer",
+    email="volunteer@compass.com",
+    experience=1,
+    group="volunteers",
+    program=[programs.COMMUNITY],
+    created_at=datetime.now(),
+    role=UserTypeEnum.VOLUNTEER,
+)
+
+employee = User(
+    id=2,
+    username="employee",
+    email="employee@compass.com",
+    experience=5,
+    group="employees",
+    program=[programs.DOMESTIC, programs.ECONOMIC],
+    created_at=datetime.now(),
+    role=roles.EMPLOYEE,
+)
+
+admin = User(
+    id=3,
+    username="admin",
+    email="admin@compass.com",
+    experience=10,
+    group="admin",
+    program=[
+        programs.ECONOMIC,
+        programs.DOMESTIC,
+        programs.COMMUNITY,
+    ],
+    created_at=datetime.now(),
+    role=roles.ADMIN,
+)
+
+newUser = User(
+    id=4,
+    username="new",
+    email="new@compass.com",
+    experience=1,
+    group="volunteer",
+    program=[programs.ECONOMIC],
+    created_at=datetime.now(),
+    role=roles.VOLUNTEER,
+)
+
+users = [volunteer, employee, admin]
+
+
+from sqlalchemy import text
+from sqlalchemy.orm import Session, DeclarativeBase, InstrumentedAttribute
+
+
+def reset_table_id_seq(
+    session: Session,
+    entity: type[DeclarativeBase],
+    entity_id_column: InstrumentedAttribute[int],
+    next_id: int,
+) -> None:
+    """Reset the ID sequence of an entity table.
+
+    Args:
+        session (Session) - A SQLAlchemy Session
+        entity (DeclarativeBase) - The SQLAlchemy Entity table to target
+        entity_id_column (MappedColumn) - The ID column (should be an int column)
+        next_id (int) - Where the next inserted, autogenerated ID should begin
+
+    Returns:
+        None"""
+    table = entity.__table__
+    id_column_name = entity_id_column.name
+    sql = text(f"ALTER SEQUENCe {table}_{id_column_name}_seq RESTART WITH {next_id}")
+    session.execute(sql)
+
+
+def insert_fake_data(session: Session):
+    """Inserts fake organization data into the test session."""
+
+    global users
+
+    # Create entities for test organization data
+    entities = []
+    for user in users:
+        entity = UserEntity.from_model(user)
+        session.add(entity)
+        entities.append(entity)
+
+    # Reset table IDs to prevent ID conflicts
+    reset_table_id_seq(session, UserEntity, UserEntity.id, len(users) + 1)
+
+    # Commit all changes
+    session.commit()
+
+
+@pytest.fixture(autouse=True)
+def fake_data_fixture(session: Session):
+    """Insert fake data the session automatically when test is run.
+    Note:
+        This function runs automatically due to the fixture property `autouse=True`.
+    """
+    # insert_fake_data(session)
+    session.commit()
+    yield