diff --git a/test/unit/object-merge.test.ts b/test/unit/object-merge.test.ts
index c1df993..b931709 100644
--- a/test/unit/object-merge.test.ts
+++ b/test/unit/object-merge.test.ts
@@ -1,7 +1,7 @@
-import { MergeContext } from 'src/object-merge'
+import { createMergedObject, MergeContext } from '../../src/object-merge'
 import { createProxy } from '../../src/object-merge/proxy'
 
-describe('proxy', () => {
+describe('simple proxy operations', () => {
   let context: MergeContext<any>
 
   beforeEach(() => {
@@ -12,7 +12,7 @@ describe('proxy', () => {
     }
   })
 
-  test('proxy (get)', () => {
+  test('proxy has same structure as target', () => {
     const target = {
       str: 'test',
       obj: {
@@ -26,7 +26,7 @@ describe('proxy', () => {
     expect(proxy.obj.str).toBe('test')
   })
 
-  test('string (set, update, delete)', () => {
+  test('updating the proxy updates the active object in the context', () => {
     const target = {}
 
     const proxy = createProxy(context, target, {})
@@ -44,7 +44,7 @@ describe('proxy', () => {
     expect(context.active.str).toBeUndefined()
   })
 
-  test('array (set, update, delete)', () => {
+  test('updating individual elements in an array child on the proxy is supported', () => {
     const target = {}
 
     const proxy = createProxy(context, target, {})
@@ -67,18 +67,21 @@ describe('proxy', () => {
     expect(context.active.arr).toBeUndefined()
   })
 
-  test('proxy (set object)', () => {
+  test('updating an object child on the proxy sets the new object value as active', () => {
     const target = {}
 
-    const proxy = createProxy(context, target, {})
+    const proxy = createProxy(context, target, { str2: 'test' })
 
     proxy.obj = { str: 'test' }
 
     expect(context.active.obj).toBeDefined()
-    expect(context.active.obj.str).toBe('test')
+    expect('str2' in context.active.obj).toBe(false)
+    expect(context.active.obj).toEqual({
+      str: 'test'
+    })
   })
 
-  test('proxy (remove)', () => {
+  test('removing an object child also removes it from active', () => {
     const target = {}
 
     const proxy = createProxy(context, target, {})
@@ -92,7 +95,7 @@ describe('proxy', () => {
     expect(context.active.obj).not.toBeDefined()
   })
 
-  test('proxy (remove child)', () => {
+  test('removing a property from an object child removes it form active but keeps the object child', () => {
     const target = {}
 
     const proxy = createProxy(context, target, {})
@@ -106,3 +109,108 @@ describe('proxy', () => {
     expect(context.active.obj).toEqual({})
   })
 })
+
+describe('multiple proxy operations', () => {
+  test('two sources are merged into active', () => {
+    const active: Record<string, any> = {}
+    const { addSource } = createMergedObject<typeof active>((values, _contexts) => {
+      const value = values[values.length - 1]
+      return value
+    }, active)
+
+    addSource({
+      str1: 'test',
+      obj: {
+        str1: 'test'
+      }
+    })
+
+    addSource({
+      str2: 'test',
+      obj: {
+        str2: 'test'
+      }
+    }, {}, true)
+
+    expect(active.str1).not.toBeUndefined()
+    expect(active.str2).not.toBeUndefined()
+    expect(active.obj.str1).not.toBeUndefined()
+    expect(active.obj.str2).not.toBeUndefined()
+  })
+
+  test('a source can be removed by its source reference', () => {
+    const active: Record<string, any> = {}
+    const { addSource, delSource } = createMergedObject<typeof active>((values, _contexts) => {
+      const value = values[values.length - 1]
+      return value
+    }, active)
+
+    addSource({ str: 'test1' })
+
+    const source2 = { str: 'test2' }
+    addSource(source2, {}, true)
+
+    expect(active.str).toBe('test2')
+
+    delSource(source2)
+
+    expect(active.str).toBe('test1')
+  })
+
+  test('a source can be removed by its proxy', () => {
+    const active: Record<string, any> = {}
+    const { compute, addSource, delSource } = createMergedObject<typeof active>((values, _contexts) => {
+      const value = values[values.length - 1]
+      return value
+    }, active)
+
+    addSource({ str: 'test1' })
+
+    const proxy2 = addSource({ str: 'test2' })
+    compute()
+
+    expect(active.str).toBe('test2')
+
+    delSource(proxy2)
+
+    expect(active.str).toBe('test1')
+  })
+
+  test('nested objects on a proxy source recompute all child properties ', () => {
+    const active: Record<string, any> = {}
+    const { compute, addSource, delSource } = createMergedObject<typeof active>((values, _contexts) => {
+      const value = values[values.length - 1]
+      return value
+    }, active)
+
+    addSource({
+      obj: {
+        str1: 'test1',
+        str2: 'empty'
+      }
+    })
+
+    const proxy2 = addSource({
+      obj: {
+        str1: 'test2'
+      }
+    })
+
+    compute()
+
+    expect(active.obj.str1).toBe('test2')
+    expect(active.obj.str2).toBe('empty')
+
+    proxy2.obj = {
+      str1: 'test3'
+    }
+
+    expect(active.obj.str1).toBe('test3')
+    expect(active.obj.str2).toBe('empty')
+
+    delSource(proxy2)
+
+    expect(active.obj.str1).toBe('test1')
+    expect(active.obj.str2).toBe('empty')
+  })
+})
diff --git a/test/unit/render.test.ts b/test/unit/render.test.ts
index 598f438..deb0d22 100644
--- a/test/unit/render.test.ts
+++ b/test/unit/render.test.ts
@@ -54,7 +54,8 @@ describe('render', () => {
     const key = 'DescriptionTest'
     const data = 'my description'
     const config = {
-      tag: 'meta'
+      tag: 'meta',
+      keyAttribute: 'name'
     }
 
     const res = render.renderMeta(context, key, data, config)
@@ -72,7 +73,8 @@ describe('render', () => {
     const key = 'DescriptionTest2'
     const data = { content: 'my description 2' }
     const config = {
-      tag: 'meta'
+      tag: 'meta',
+      keyAttribute: 'name'
     }
 
     const res = render.renderMeta(context, key, data, config)