diff --git a/src/main/java/dev/fyloz/trial/colorrecipesexplorer/model/MixType.java b/src/main/java/dev/fyloz/trial/colorrecipesexplorer/model/MixType.java
deleted file mode 100644
index 30811e0..0000000
--- a/src/main/java/dev/fyloz/trial/colorrecipesexplorer/model/MixType.java
+++ /dev/null
@@ -1,50 +0,0 @@
-package dev.fyloz.trial.colorrecipesexplorer.model;
-
-import lombok.*;
-import org.jetbrains.annotations.Nullable;
-
-import javax.persistence.*;
-import javax.validation.constraints.NotNull;
-import java.util.Objects;
-
-@Entity
-@Data
-@NoArgsConstructor
-@RequiredArgsConstructor
-@AllArgsConstructor
-public class MixType implements Model {
-
-    public static final String IDENTIFIER_MATERIAL_NAME = "material";
-
-    @Id
-    @GeneratedValue(strategy = GenerationType.SEQUENCE)
-    private Long id;
-
-    @NonNull
-    @NotNull
-    private String name;
-
-    @NonNull
-    @NotNull
-    @ManyToOne(cascade = CascadeType.ALL)
-    private Material material;
-
-    public void setName(String name, boolean editMaterial) {
-        this.name = name;
-        if (editMaterial) this.material.setName(name);
-    }
-
-    @Override
-    public boolean equals(Object o) {
-        if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
-        MixType mixType = (MixType) o;
-        return Objects.equals(name, mixType.name) &&
-                Objects.equals(material, mixType.material);
-    }
-
-    @Override
-    public int hashCode() {
-        return Objects.hash(name, material);
-    }
-}
diff --git a/src/main/java/dev/fyloz/trial/colorrecipesexplorer/repository/MixTypeRepository.java b/src/main/java/dev/fyloz/trial/colorrecipesexplorer/repository/MixTypeRepository.java
deleted file mode 100644
index e88ed7d..0000000
--- a/src/main/java/dev/fyloz/trial/colorrecipesexplorer/repository/MixTypeRepository.java
+++ /dev/null
@@ -1,18 +0,0 @@
-package dev.fyloz.trial.colorrecipesexplorer.repository;
-
-import dev.fyloz.trial.colorrecipesexplorer.model.Material;
-import dev.fyloz.trial.colorrecipesexplorer.model.MixType;
-import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.stereotype.Repository;
-
-import java.util.Optional;
-
-@Repository
-public interface MixTypeRepository extends JpaRepository<MixType, Long> {
-
-    boolean existsByName(String name);
-
-    Optional<MixType> findByName(String name);
-
-    Optional<MixType> findByMaterial(Material material);
-}
diff --git a/src/main/java/dev/fyloz/trial/colorrecipesexplorer/service/model/MixService.java b/src/main/java/dev/fyloz/trial/colorrecipesexplorer/service/model/MixService.java
index 1f54ac5..a07175c 100644
--- a/src/main/java/dev/fyloz/trial/colorrecipesexplorer/service/model/MixService.java
+++ b/src/main/java/dev/fyloz/trial/colorrecipesexplorer/service/model/MixService.java
@@ -2,10 +2,7 @@ package dev.fyloz.trial.colorrecipesexplorer.service.model;
 
 import dev.fyloz.trial.colorrecipesexplorer.exception.model.EntityAlreadyExistsException;
 import dev.fyloz.trial.colorrecipesexplorer.exception.model.ModelException;
-import dev.fyloz.trial.colorrecipesexplorer.model.Material;
-import dev.fyloz.trial.colorrecipesexplorer.model.Mix;
-import dev.fyloz.trial.colorrecipesexplorer.model.MixType;
-import dev.fyloz.trial.colorrecipesexplorer.model.Recipe;
+import dev.fyloz.trial.colorrecipesexplorer.model.*;
 import dev.fyloz.trial.colorrecipesexplorer.model.dto.MixFormDto;
 import dev.fyloz.trial.colorrecipesexplorer.service.AbstractJavaService;
 import dev.fyloz.trial.colorrecipesexplorer.utils.MixBuilder;
@@ -23,7 +20,7 @@ public class MixService extends AbstractJavaService<Mix, MixRepository> {
 
     private MaterialJavaService materialService;
     private MixMaterialJavaService mixQuantityService;
-    private MixTypeService mixTypeService;
+    private MixTypeJavaService mixTypeService;
 
     public MixService() {
         super(Mix.class);
@@ -45,7 +42,7 @@ public class MixService extends AbstractJavaService<Mix, MixRepository> {
     }
 
     @Autowired
-    public void setMixTypeService(MixTypeService mixTypeService) {
+    public void setMixTypeService(MixTypeJavaService mixTypeService) {
         this.mixTypeService = mixTypeService;
     }
 
@@ -118,7 +115,7 @@ public class MixService extends AbstractJavaService<Mix, MixRepository> {
             throw new EntityAlreadyExistsException(type, ModelException.IdentifierType.OTHER, Mix.IDENTIFIER_MIX_TYPE_NAME, mix.getMixType().getName());
 
         if (materialService.existsByName(mixType.getName()) && !materialService.getByName(mixType.getName()).isMixType())
-            throw new EntityAlreadyExistsException(type, ModelException.IdentifierType.OTHER, MixType.IDENTIFIER_MATERIAL_NAME, mixType.getName());
+            throw new EntityAlreadyExistsException(type, ModelException.IdentifierType.OTHER, MixTypeKt.IDENTIFIER_MATERIAL_NAME, mixType.getName());
 
         mixTypeService.update(mixType);
         update(mix);
diff --git a/src/main/java/dev/fyloz/trial/colorrecipesexplorer/service/model/MixTypeService.java b/src/main/java/dev/fyloz/trial/colorrecipesexplorer/service/model/MixTypeJavaService.java
similarity index 85%
rename from src/main/java/dev/fyloz/trial/colorrecipesexplorer/service/model/MixTypeService.java
rename to src/main/java/dev/fyloz/trial/colorrecipesexplorer/service/model/MixTypeJavaService.java
index ab9cf12..7a5e050 100644
--- a/src/main/java/dev/fyloz/trial/colorrecipesexplorer/service/model/MixTypeService.java
+++ b/src/main/java/dev/fyloz/trial/colorrecipesexplorer/service/model/MixTypeJavaService.java
@@ -4,10 +4,11 @@ import dev.fyloz.trial.colorrecipesexplorer.exception.model.EntityAlreadyExistsE
 import dev.fyloz.trial.colorrecipesexplorer.exception.model.EntityNotFoundException;
 import dev.fyloz.trial.colorrecipesexplorer.exception.model.ModelException;
 import dev.fyloz.trial.colorrecipesexplorer.model.Material;
-import dev.fyloz.trial.colorrecipesexplorer.model.MixType;
 import dev.fyloz.trial.colorrecipesexplorer.model.MaterialType;
-import dev.fyloz.trial.colorrecipesexplorer.service.AbstractJavaService;
+import dev.fyloz.trial.colorrecipesexplorer.model.MixType;
+import dev.fyloz.trial.colorrecipesexplorer.model.MixTypeKt;
 import dev.fyloz.trial.colorrecipesexplorer.repository.MixTypeRepository;
+import dev.fyloz.trial.colorrecipesexplorer.service.AbstractJavaService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
@@ -15,11 +16,11 @@ import javax.validation.constraints.NotNull;
 import java.util.Optional;
 
 @Service
-public class MixTypeService extends AbstractJavaService<MixType, MixTypeRepository> {
+public class MixTypeJavaService extends AbstractJavaService<MixType, MixTypeRepository> {
 
     private MaterialJavaService materialService;
 
-    public MixTypeService() {
+    public MixTypeJavaService() {
         super(MixType.class);
     }
 
@@ -50,7 +51,7 @@ public class MixTypeService extends AbstractJavaService<MixType, MixTypeReposito
      * @return Le type de mélange correspondant au nom
      */
     public MixType getByName(String name) {
-        Optional<MixType> found = repository.findByName(name);
+        Optional<MixType> found = findOptional(repository.findByName(name));
         if (found.isEmpty()) throw new EntityNotFoundException(type, ModelException.IdentifierType.NAME, name);
 
         return found.get();
@@ -63,9 +64,9 @@ public class MixTypeService extends AbstractJavaService<MixType, MixTypeReposito
      * @return Le type de mélange correspondant au produit
      */
     public MixType getByMaterial(Material material) {
-        Optional<MixType> found = repository.findByMaterial(material);
+        Optional<MixType> found = findOptional(repository.findByMaterial(material));
         if (found.isEmpty())
-            throw new EntityNotFoundException(type, ModelException.IdentifierType.OTHER, MixType.IDENTIFIER_MATERIAL_NAME, material);
+            throw new EntityNotFoundException(type, ModelException.IdentifierType.OTHER, MixTypeKt.IDENTIFIER_MATERIAL_NAME, material);
 
         return found.get();
     }
@@ -85,7 +86,7 @@ public class MixTypeService extends AbstractJavaService<MixType, MixTypeReposito
     @Override
     public MixType save(@NotNull MixType entity) {
         if (materialService.existsByName(entity.getName()))
-            throw new EntityAlreadyExistsException(type, ModelException.IdentifierType.OTHER, MixType.IDENTIFIER_MATERIAL_NAME, entity.getName());
+            throw new EntityAlreadyExistsException(type, ModelException.IdentifierType.OTHER, MixTypeKt.IDENTIFIER_MATERIAL_NAME, entity.getName());
 
         return super.save(entity);
     }
diff --git a/src/main/java/dev/fyloz/trial/colorrecipesexplorer/utils/MixBuilder.java b/src/main/java/dev/fyloz/trial/colorrecipesexplorer/utils/MixBuilder.java
index 332bd66..aedb506 100644
--- a/src/main/java/dev/fyloz/trial/colorrecipesexplorer/utils/MixBuilder.java
+++ b/src/main/java/dev/fyloz/trial/colorrecipesexplorer/utils/MixBuilder.java
@@ -3,14 +3,14 @@ package dev.fyloz.trial.colorrecipesexplorer.utils;
 import dev.fyloz.trial.colorrecipesexplorer.model.*;
 import dev.fyloz.trial.colorrecipesexplorer.model.dto.MixFormDto;
 import dev.fyloz.trial.colorrecipesexplorer.service.model.MaterialJavaService;
-import dev.fyloz.trial.colorrecipesexplorer.service.model.MixTypeService;
+import dev.fyloz.trial.colorrecipesexplorer.service.model.MixTypeJavaService;
 import dev.fyloz.trial.colorrecipesexplorer.model.Material;
 
 import java.util.*;
 
 public class MixBuilder {
 
-    private MixTypeService mixTypeService;
+    private MixTypeJavaService mixTypeService;
     private MaterialJavaService materialService;
 
     private Long id;
@@ -21,7 +21,7 @@ public class MixBuilder {
 
     private Map<String, Float> quantities = new LinkedHashMap<>();
 
-    public MixBuilder(MixTypeService mixTypeService, MaterialJavaService materialService) {
+    public MixBuilder(MixTypeJavaService mixTypeService, MaterialJavaService materialService) {
         this.mixTypeService = mixTypeService;
         this.materialService = materialService;
     }
@@ -45,10 +45,11 @@ public class MixBuilder {
             this.mixType = new MixType(this.mixType.getId(), this.mixType.getName(), this.mixType.getMaterial());
 
             if (materialService.existsByName(mixTypeName)) {
-                this.mixType.setName(mixTypeName, false);
+                this.mixType.setName(mixTypeName);
                 this.mixType.setMaterial(materialService.getByName(mixTypeName));
             } else {
-                this.mixType.setName(mixTypeName, true);
+                this.mixType.setName(mixTypeName);
+                this.mixType.getMaterial().setName(mixTypeName);
             }
 
             this.mixType.getMaterial().setMaterialType(dto.getMaterialType());
diff --git a/src/main/java/dev/fyloz/trial/colorrecipesexplorer/web/controller/thymeleaf/creators/MixCreatorController.java b/src/main/java/dev/fyloz/trial/colorrecipesexplorer/web/controller/thymeleaf/creators/MixCreatorController.java
index e86e9a4..3795998 100644
--- a/src/main/java/dev/fyloz/trial/colorrecipesexplorer/web/controller/thymeleaf/creators/MixCreatorController.java
+++ b/src/main/java/dev/fyloz/trial/colorrecipesexplorer/web/controller/thymeleaf/creators/MixCreatorController.java
@@ -2,11 +2,11 @@ package dev.fyloz.trial.colorrecipesexplorer.web.controller.thymeleaf.creators;
 
 import dev.fyloz.trial.colorrecipesexplorer.exception.model.EntityAlreadyExistsException;
 import dev.fyloz.trial.colorrecipesexplorer.exception.model.EntityNotFoundException;
+import dev.fyloz.trial.colorrecipesexplorer.model.MixTypeKt;
 import dev.fyloz.trial.colorrecipesexplorer.web.response.ModelResponseBuilder;
 import dev.fyloz.trial.colorrecipesexplorer.web.response.ResponseCode;
 import dev.fyloz.trial.colorrecipesexplorer.web.response.ResponseDataType;
 import dev.fyloz.trial.colorrecipesexplorer.model.Mix;
-import dev.fyloz.trial.colorrecipesexplorer.model.MixType;
 import dev.fyloz.trial.colorrecipesexplorer.model.Recipe;
 import dev.fyloz.trial.colorrecipesexplorer.model.dto.MixFormDto;
 import dev.fyloz.trial.colorrecipesexplorer.service.ServiceKt;
@@ -35,7 +35,7 @@ public class MixCreatorController {
     private MaterialTypeJavaService materialTypeService;
 
     @Autowired
-    public MixCreatorController(MixService mixService, RecipeService recipeService, MaterialJavaService materialService, MixTypeService mixTypeService, MaterialTypeJavaService materialTypeService) {
+    public MixCreatorController(MixService mixService, RecipeService recipeService, MaterialJavaService materialService, MixTypeJavaService mixTypeService, MaterialTypeJavaService materialTypeService) {
         this.mixService = mixService;
         this.recipeService = recipeService;
         this.materialService = materialService;
@@ -80,7 +80,7 @@ public class MixCreatorController {
         } catch (EntityAlreadyExistsException ex) {
             if (ex.getIdentifierName().equals(Mix.IDENTIFIER_MIX_TYPE_NAME))
                 modelResponseBuilder.addResponseCode(ResponseCode.MIX_TYPE_ALREADY_USED, ex.getRequestedId());
-            else if (ex.getIdentifierName().equals(MixType.IDENTIFIER_MATERIAL_NAME))
+            else if (ex.getIdentifierName().equals(MixTypeKt.IDENTIFIER_MATERIAL_NAME))
                 modelResponseBuilder.addResponseCode(ResponseCode.MATERIAL_AND_MIX_TYPE_CANNOT_HAVE_SAME_NAME);
         }
 
diff --git a/src/main/java/dev/fyloz/trial/colorrecipesexplorer/web/controller/thymeleaf/editors/MixEditorController.java b/src/main/java/dev/fyloz/trial/colorrecipesexplorer/web/controller/thymeleaf/editors/MixEditorController.java
index 1517d4b..5ba7e2b 100644
--- a/src/main/java/dev/fyloz/trial/colorrecipesexplorer/web/controller/thymeleaf/editors/MixEditorController.java
+++ b/src/main/java/dev/fyloz/trial/colorrecipesexplorer/web/controller/thymeleaf/editors/MixEditorController.java
@@ -2,11 +2,11 @@ package dev.fyloz.trial.colorrecipesexplorer.web.controller.thymeleaf.editors;
 
 import dev.fyloz.trial.colorrecipesexplorer.exception.model.EntityAlreadyExistsException;
 import dev.fyloz.trial.colorrecipesexplorer.exception.model.EntityNotFoundException;
+import dev.fyloz.trial.colorrecipesexplorer.model.MixTypeKt;
 import dev.fyloz.trial.colorrecipesexplorer.web.response.ModelResponseBuilder;
 import dev.fyloz.trial.colorrecipesexplorer.web.response.ResponseCode;
 import dev.fyloz.trial.colorrecipesexplorer.web.response.ResponseDataType;
 import dev.fyloz.trial.colorrecipesexplorer.model.Mix;
-import dev.fyloz.trial.colorrecipesexplorer.model.MixType;
 import dev.fyloz.trial.colorrecipesexplorer.model.dto.MixFormDto;
 import dev.fyloz.trial.colorrecipesexplorer.service.model.MaterialJavaService;
 import dev.fyloz.trial.colorrecipesexplorer.service.model.MaterialTypeJavaService;
@@ -72,7 +72,7 @@ public class MixEditorController {
         } catch (EntityNotFoundException ex) {
             modelResponseBuilder.addResponseCode(ResponseCode.MIX_NOT_FOUND, id).build();
         } catch (EntityAlreadyExistsException ex) {
-            if (ex.getIdentifierName().equals(MixType.IDENTIFIER_MATERIAL_NAME))
+            if (ex.getIdentifierName().equals(MixTypeKt.IDENTIFIER_MATERIAL_NAME))
                 modelResponseBuilder.addResponseCode(ResponseCode.MATERIAL_AND_MIX_TYPE_CANNOT_HAVE_SAME_NAME);
             else if (ex.getIdentifierName().equals(Mix.IDENTIFIER_MIX_TYPE_NAME))
                 modelResponseBuilder.addResponseCode(ResponseCode.MIX_TYPE_ALREADY_USED, ex.getRequestedId());
diff --git a/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/model/MixMaterial.kt b/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/model/MixMaterial.kt
index 4cc18fc..5acf2cb 100644
--- a/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/model/MixMaterial.kt
+++ b/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/model/MixMaterial.kt
@@ -29,7 +29,7 @@ data class MixMaterial(
 
 // ==== DSL ====
 fun mixMaterial(
-    id: Long? = 0L,
+    id: Long? = null,
     mix: Mix = TODO(),
     material: Material = material(),
     quantity: Float = 0f,
diff --git a/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/model/MixType.kt b/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/model/MixType.kt
new file mode 100644
index 0000000..b683050
--- /dev/null
+++ b/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/model/MixType.kt
@@ -0,0 +1,41 @@
+package dev.fyloz.trial.colorrecipesexplorer.model
+
+import java.util.*
+import javax.persistence.*
+
+const val IDENTIFIER_MATERIAL_NAME = "material"
+
+@Entity
+data class MixType(
+    @Id
+    @GeneratedValue(strategy = GenerationType.SEQUENCE)
+    override val id: Long?,
+
+    @Column(unique = true)
+    override var name: String,
+
+    @ManyToOne
+    var material: Material?
+) : NamedModel {
+    constructor(name: String, material: Material) : this(null, name, material)
+
+    override fun equals(other: Any?): Boolean = other is MixType && other.name == name && other.material == material
+    override fun hashCode(): Int = Objects.hash(name, material)
+}
+
+// ==== DSL ====
+fun mixType(
+    id: Long? = null,
+    name: String = "name",
+    material: Material = material(),
+    op: MixType.() -> Unit = {}
+) = MixType(id, name, material).apply(op)
+
+fun mixType(
+    name: String = "name",
+    materialType: MaterialType = materialType(),
+    op: MixType.() -> Unit = {}
+) = MixType(
+    name,
+    material(name = name, inventoryQuantity = 0f, isMixType = true, materialType = materialType)
+).apply(op)
diff --git a/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/repository/MixTypeRepository.kt b/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/repository/MixTypeRepository.kt
new file mode 100644
index 0000000..0ae4ccc
--- /dev/null
+++ b/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/repository/MixTypeRepository.kt
@@ -0,0 +1,11 @@
+package dev.fyloz.trial.colorrecipesexplorer.repository
+
+import dev.fyloz.trial.colorrecipesexplorer.model.Material
+import dev.fyloz.trial.colorrecipesexplorer.model.MixType
+import org.springframework.stereotype.Repository
+
+@Repository
+interface MixTypeRepository : NamedJpaRepository<MixType> {
+    /** Gets the mix type with the given [material]. */
+    fun findByMaterial(material: Material): MixType?
+}
diff --git a/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/service/InventoryService.kt b/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/service/InventoryService.kt
index 0a96442..95b45d7 100644
--- a/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/service/InventoryService.kt
+++ b/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/service/InventoryService.kt
@@ -10,7 +10,7 @@ import org.springframework.stereotype.Service
 const val minimumQuantity = 100.0f  // TODO quantity stored in database
 
 @Service
-class InventoryService(val materialService: MaterialServiceImpl) {
+class InventoryService(val materialService: MaterialService) {
     fun getAllMaterials(): Collection<InventoryMaterial> {
         return materialService.getAllNotMixType().map { it.toInventoryMaterial(minimumQuantity) }
     }
diff --git a/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/service/MaterialService.kt b/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/service/MaterialService.kt
index c04accf..3fd19f3 100644
--- a/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/service/MaterialService.kt
+++ b/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/service/MaterialService.kt
@@ -3,7 +3,6 @@ package dev.fyloz.trial.colorrecipesexplorer.service
 import dev.fyloz.trial.colorrecipesexplorer.model.*
 import dev.fyloz.trial.colorrecipesexplorer.repository.MaterialRepository
 import dev.fyloz.trial.colorrecipesexplorer.service.files.SimdutService
-import dev.fyloz.trial.colorrecipesexplorer.service.model.MixMaterialJavaService
 import io.jsonwebtoken.lang.Assert
 import org.springframework.stereotype.Service
 
diff --git a/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/service/MixTypeService.kt b/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/service/MixTypeService.kt
new file mode 100644
index 0000000..076da23
--- /dev/null
+++ b/src/main/kotlin/dev/fyloz/trial/colorrecipesexplorer/service/MixTypeService.kt
@@ -0,0 +1,26 @@
+package dev.fyloz.trial.colorrecipesexplorer.service
+
+import dev.fyloz.trial.colorrecipesexplorer.exception.model.EntityAlreadyExistsRestException
+import dev.fyloz.trial.colorrecipesexplorer.exception.model.EntityNotFoundRestException
+import dev.fyloz.trial.colorrecipesexplorer.model.Material
+import dev.fyloz.trial.colorrecipesexplorer.model.MixType
+import dev.fyloz.trial.colorrecipesexplorer.repository.MixTypeRepository
+import org.springframework.stereotype.Service
+
+interface MixTypeService : NamedModelService<MixType, MixTypeRepository> {
+    /** Gets the mix type with the given [material]. */
+    fun getByMaterial(material: Material): MixType
+}
+
+@Service
+class MixTypeServiceImpl(mixTypeRepository: MixTypeRepository, private val materialService: MaterialService) :
+    AbstractNamedModelService<MixType, MixTypeRepository>(mixTypeRepository), MixTypeService {
+    override fun getByMaterial(material: Material): MixType =
+        repository.findByMaterial(material) ?: throw EntityNotFoundRestException(material.name)
+
+    override fun save(entity: MixType): MixType {
+        if (materialService.existsByName(entity.name))
+            throw EntityAlreadyExistsRestException(entity.name)
+        return super.save(entity)
+    }
+}
diff --git a/src/test/kotlin/dev/fyloz/trial/colorrecipesexplorer/service/MixTypeServiceTest.kt b/src/test/kotlin/dev/fyloz/trial/colorrecipesexplorer/service/MixTypeServiceTest.kt
new file mode 100644
index 0000000..b673e9b
--- /dev/null
+++ b/src/test/kotlin/dev/fyloz/trial/colorrecipesexplorer/service/MixTypeServiceTest.kt
@@ -0,0 +1,63 @@
+package dev.fyloz.trial.colorrecipesexplorer.service
+
+import com.nhaarman.mockitokotlin2.*
+import dev.fyloz.trial.colorrecipesexplorer.exception.model.EntityAlreadyExistsRestException
+import dev.fyloz.trial.colorrecipesexplorer.exception.model.EntityNotFoundRestException
+import dev.fyloz.trial.colorrecipesexplorer.model.Material
+import dev.fyloz.trial.colorrecipesexplorer.model.MixType
+import dev.fyloz.trial.colorrecipesexplorer.model.material
+import dev.fyloz.trial.colorrecipesexplorer.model.mixType
+import dev.fyloz.trial.colorrecipesexplorer.repository.MixTypeRepository
+import org.junit.jupiter.api.AfterEach
+import org.junit.jupiter.api.Nested
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertThrows
+import kotlin.test.assertEquals
+
+class MixTypeServiceTest : AbstractNamedModelServiceTest<MixType, MixTypeService, MixTypeRepository>() {
+    override val repository: MixTypeRepository = mock()
+    private val materialService: MaterialService = mock()
+    override val service: MixTypeService = spy(MixTypeServiceImpl(repository, materialService))
+
+    private val material: Material = material(id = 0L)
+    override val entity: MixType = mixType(id = 0L, name = "mix type", material = material)
+    override val anotherEntity: MixType = mixType(id = 1L, name = "another mix type")
+    override val entityWithEntityName: MixType = mixType(id = 2L, name = entity.name)
+
+    @AfterEach
+    override fun afterEach() {
+        reset(materialService)
+        super.afterEach()
+    }
+
+    @Nested
+    inner class GetByMaterial {
+        @Test
+        fun `returns the mix type with the given material`() {
+            whenever(repository.findByMaterial(material)).doReturn(entity)
+
+            val found = service.getByMaterial(material)
+
+            assertEquals(entity, found)
+        }
+
+        @Test
+        fun `throws EntityNotFoundRestException when no mix type with the given material exists`() {
+            whenever(repository.findByMaterial(material)).doReturn(null)
+
+            val exception = assertThrows<EntityNotFoundRestException> { service.getByMaterial(material) }
+            assertEquals(material.name, exception.value)
+        }
+    }
+
+    @Nested
+    inner class SaveMixType {
+        @Test
+        fun `throws EntityAlreadyExistsRestException when a material with the name of the new mix type exists`() {
+            whenever(materialService.existsByName(entity.name)).doReturn(true)
+
+            val exception = assertThrows<EntityAlreadyExistsRestException> { service.save(entity) }
+            assertEquals(entity.name, exception.value)
+        }
+    }
+}