diff --git a/pyproject.toml b/pyproject.toml
index cb6aa69..5dbb664 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,7 @@ exclude = ["client"]
 
 [tool.ruff]
 select = ["ALL"]
-ignore = ["A003", "D101", "D104", "D406", "D407", "S104", "TRY201", "TRY003", "EM101", "EM102", "DTZ003"]
+ignore = ["A003", "D101", "D104", "D406", "D407", "S104", "TRY201", "TRY003", "EM101", "EM102", "DTZ003", "PLR0913"]
 line-length = 120
 target-version = "py39"
 
diff --git a/tests_integration/Dockerfile b/tests_integration/Dockerfile
index 7939d3e..15d908b 100644
--- a/tests_integration/Dockerfile
+++ b/tests_integration/Dockerfile
@@ -6,4 +6,4 @@ WORKDIR /tester
 
 RUN pip install -r requirements.txt
 
-ENTRYPOINT [ "pytest", "tests" ]
+ENTRYPOINT [ "pytest", "--exitfirst", "tests" ]
diff --git a/tests_integration/tests/test_filament.py b/tests_integration/tests/test_filament.py
index f8a2bdf..9488d84 100644
--- a/tests_integration/tests/test_filament.py
+++ b/tests_integration/tests/test_filament.py
@@ -38,16 +38,47 @@ def test_add_filament(random_vendor: dict[str, Any]):
 
     # Verify
     filament = result.json()
-    assert filament["name"] == name
-    assert filament["vendor"] == random_vendor
-    assert filament["material"] == material
-    assert filament["price"] == price
-    assert filament["density"] == density
-    assert filament["diameter"] == diameter
-    assert filament["weight"] == weight
-    assert filament["spool_weight"] == spool_weight
-    assert filament["article_number"] == article_number
-    assert filament["comment"] == comment
+    assert filament == {
+        "id": filament["id"],
+        "registered": filament["registered"],
+        "name": name,
+        "vendor": random_vendor,
+        "material": material,
+        "price": price,
+        "density": density,
+        "diameter": diameter,
+        "weight": weight,
+        "spool_weight": spool_weight,
+        "article_number": article_number,
+        "comment": comment,
+    }
+
+    # Clean up
+    httpx.delete(f"{URL}/api/v1/filament/{filament['id']}").raise_for_status()
+
+
+def test_add_filament_required():
+    """Test adding a filament with only the required fields to the database."""
+    # Execute
+    density = 1.25
+    diameter = 1.75
+    result = httpx.post(
+        f"{URL}/api/v1/filament",
+        json={
+            "density": density,
+            "diameter": diameter,
+        },
+    )
+    result.raise_for_status()
+
+    # Verify
+    filament = result.json()
+    assert filament == {
+        "id": filament["id"],
+        "registered": filament["registered"],
+        "density": density,
+        "diameter": diameter,
+    }
 
     # Clean up
     httpx.delete(f"{URL}/api/v1/filament/{filament['id']}").raise_for_status()
diff --git a/tests_integration/tests/test_spool.py b/tests_integration/tests/test_spool.py
index fbbd436..0725cfb 100644
--- a/tests_integration/tests/test_spool.py
+++ b/tests_integration/tests/test_spool.py
@@ -34,14 +34,18 @@ def test_add_spool_remaining_weight(random_filament: dict[str, Any]):
 
     # Verify
     spool = result.json()
-    assert spool["first_used"] == first_used
-    assert spool["last_used"] == last_used
-    assert spool["filament"] == random_filament
-    assert spool["remaining_weight"] == pytest.approx(remaining_weight)
-    assert spool["used_weight"] == pytest.approx(random_filament["weight"] - remaining_weight)
-    assert spool["location"] == location
-    assert spool["lot_nr"] == lot_nr
-    assert spool["comment"] == comment
+    assert spool == {
+        "id": spool["id"],
+        "registered": spool["registered"],
+        "first_used": first_used,
+        "last_used": last_used,
+        "filament": random_filament,
+        "remaining_weight": pytest.approx(remaining_weight),
+        "used_weight": pytest.approx(random_filament["weight"] - remaining_weight),
+        "location": location,
+        "lot_nr": lot_nr,
+        "comment": comment,
+    }
 
     # Clean up
     httpx.delete(f"{URL}/api/v1/spool/{spool['id']}").raise_for_status()
@@ -72,14 +76,45 @@ def test_add_spool_used_weight(random_filament: dict[str, Any]):
 
     # Verify
     spool = result.json()
-    assert spool["first_used"] == first_used
-    assert spool["last_used"] == last_used
-    assert spool["filament"] == random_filament
-    assert spool["remaining_weight"] == pytest.approx(random_filament["weight"] - used_weight)
-    assert spool["used_weight"] == pytest.approx(used_weight)
-    assert spool["location"] == location
-    assert spool["lot_nr"] == lot_nr
-    assert spool["comment"] == comment
+    assert spool == {
+        "id": spool["id"],
+        "registered": spool["registered"],
+        "first_used": first_used,
+        "last_used": last_used,
+        "filament": random_filament,
+        "remaining_weight": pytest.approx(random_filament["weight"] - used_weight),
+        "used_weight": pytest.approx(used_weight),
+        "location": location,
+        "lot_nr": lot_nr,
+        "comment": comment,
+    }
+
+    # Clean up
+    httpx.delete(f"{URL}/api/v1/spool/{spool['id']}").raise_for_status()
+
+
+def test_add_spool_required(random_filament: dict[str, Any]):
+    """Test adding a spool with only the required fields to the database."""
+    # Execute
+    used_weight = 250
+    result = httpx.post(
+        f"{URL}/api/v1/spool",
+        json={
+            "filament_id": random_filament["id"],
+            "used_weight": used_weight,
+        },
+    )
+    result.raise_for_status()
+
+    # Verify
+    spool = result.json()
+    assert spool == {
+        "id": spool["id"],
+        "registered": spool["registered"],
+        "filament": random_filament,
+        "used_weight": pytest.approx(used_weight),
+        "remaining_weight": pytest.approx(random_filament["weight"] - used_weight),
+    }
 
     # Clean up
     httpx.delete(f"{URL}/api/v1/spool/{spool['id']}").raise_for_status()
diff --git a/tests_integration/tests/test_vendor.py b/tests_integration/tests/test_vendor.py
index f3a7e7c..2b2706e 100644
--- a/tests_integration/tests/test_vendor.py
+++ b/tests_integration/tests/test_vendor.py
@@ -18,10 +18,34 @@ def test_add_vendor():
 
     # Verify
     vendor = result.json()
-    assert vendor["name"] == name
-    assert vendor["comment"] == comment
-    assert vendor["id"] is not None
-    assert vendor["registered"] is not None
+    assert vendor == {
+        "id": vendor["id"],
+        "registered": vendor["registered"],
+        "name": name,
+        "comment": comment,
+    }
+
+    # Clean up
+    httpx.delete(f"{URL}/api/v1/vendor/{vendor['id']}").raise_for_status()
+
+
+def test_add_vendor_required():
+    """Test adding a vendor with only the required fields to the database."""
+    # Execute
+    name = "John"
+    result = httpx.post(
+        f"{URL}/api/v1/vendor",
+        json={"name": name},
+    )
+    result.raise_for_status()
+
+    # Verify
+    vendor = result.json()
+    assert vendor == {
+        "id": vendor["id"],
+        "registered": vendor["registered"],
+        "name": name,
+    }
 
     # Clean up
     httpx.delete(f"{URL}/api/v1/vendor/{vendor['id']}").raise_for_status()