diff --git a/tests/imagecaption/imagecaption-integration.js b/tests/imagecaption/imagecaption-integration.js
new file mode 100644
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--- /dev/null
+++ b/tests/imagecaption/imagecaption-integration.js
@@ -0,0 +1,197 @@
+/**
+ * @license Copyright (c) 2003-2018, CKSource - Frederico Knabben. All rights reserved.
+ * For licensing, see LICENSE.md.
+ */
+
+import Image from '../../src/image';
+import ImageCaption from '../../src/imagecaption';
+import ClassicEditor from '@ckeditor/ckeditor5-editor-classic/src/classiceditor';
+import DomEventData from '@ckeditor/ckeditor5-engine/src/view/observer/domeventdata';
+import Enter from '@ckeditor/ckeditor5-enter/src/enter';
+import ShiftEnter from '@ckeditor/ckeditor5-enter/src/shiftenter';
+import Paragraph from '@ckeditor/ckeditor5-paragraph/src/paragraph';
+import Typing from '@ckeditor/ckeditor5-typing/src/typing';
+
+import { getData as getModelData, setData as setModelData } from '@ckeditor/ckeditor5-engine/src/dev-utils/model';
+import { getData as getViewData } from '@ckeditor/ckeditor5-engine/src/dev-utils/view';
+import global from '@ckeditor/ckeditor5-utils/src/dom/global';
+
+describe( 'ImageCaption integration', () => {
+	let editorElement, editor, model, view, viewDocument;
+
+	beforeEach( () => {
+		editorElement = global.document.createElement( 'div' );
+		global.document.body.appendChild( editorElement );
+	} );
+
+	afterEach( () => {
+		editorElement.remove();
+	} );
+
+	describe( 'Enter plugin', () => {
+		beforeEach( () => {
+			return ClassicEditor
+				.create( editorElement, {
+					plugins: [
+						Enter, Typing, Paragraph, Image, ImageCaption
+					]
+				} )
+				.then( newEditor => {
+					editor = newEditor;
+					model = editor.model;
+					view = editor.editing.view;
+					viewDocument = view.document;
+				} );
+		} );
+
+		afterEach( () => {
+			return editor.destroy();
+		} );
+
+		it( 'does nothing if soft enter was pressed', () => {
+			setModelData(
+				model,
+				'<paragraph>Foo.</paragraph><image src="foo.png"><caption>Foo.[]</caption></image><paragraph>Bar.</paragraph>'
+			);
+
+			viewDocument.fire( 'enter', new DomEventData( viewDocument, getDomEvent(), { isSoft: true } ) );
+
+			assertModelData(
+				'<paragraph>Foo.</paragraph>' +
+				'<image src="foo.png">' +
+					'<caption>Foo.[]</caption>' +
+				'</image>' +
+				'<paragraph>Bar.</paragraph>'
+			);
+
+			/* eslint-disable max-len */
+			assertViewData(
+				'<p>Foo.</p>' +
+				'<figure class="ck-widget image" contenteditable="false">' +
+					'<img src="foo.png"></img>' +
+					'<figcaption class="ck-editor__editable ck-editor__nested-editable" contenteditable="true" data-placeholder="Enter image caption">' +
+						'Foo.{}' +
+					'</figcaption>' +
+				'</figure>' +
+				'<p>Bar.</p>'
+			);
+			/* eslint-enable max-len */
+		} );
+	} );
+
+	describe( 'ShiftEnter plugin', () => {
+		beforeEach( () => {
+			return ClassicEditor
+				.create( editorElement, {
+					plugins: [
+						Enter, ShiftEnter, Typing, Paragraph, Image, ImageCaption
+					]
+				} )
+				.then( newEditor => {
+					editor = newEditor;
+					model = editor.model;
+					view = editor.editing.view;
+					viewDocument = view.document;
+				} );
+		} );
+
+		afterEach( () => {
+			return editor.destroy();
+		} );
+
+		it( 'inserts a soft break when soft enter was pressed', () => {
+			setModelData(
+				model,
+				'<paragraph>Foo.</paragraph><image src="foo.png"><caption>Foo.[]</caption></image><paragraph>Bar.</paragraph>'
+			);
+
+			viewDocument.fire( 'enter', new DomEventData( viewDocument, getDomEvent(), { isSoft: true } ) );
+
+			assertModelData(
+				'<paragraph>Foo.</paragraph>' +
+					'<image src="foo.png">' +
+						'<caption>Foo.<softBreak></softBreak>[]</caption>' +
+					'</image>' +
+				'<paragraph>Bar.</paragraph>'
+			);
+
+			/* eslint-disable max-len */
+			assertViewData(
+				'<p>Foo.</p>' +
+				'<figure class="ck-widget image" contenteditable="false">' +
+					'<img src="foo.png"></img>' +
+					'<figcaption class="ck-editor__editable ck-editor__nested-editable" contenteditable="true" data-placeholder="Enter image caption">' +
+						'Foo.<br></br>[]' +
+					'</figcaption>' +
+				'</figure>' +
+				'<p>Bar.</p>'
+			);
+			/* eslint-enable max-len */
+		} );
+	} );
+
+	describe( 'Enter and ShiftEnter plugins', () => {
+		beforeEach( () => {
+			return ClassicEditor
+				.create( editorElement, {
+					plugins: [
+						ShiftEnter, Typing, Paragraph, Image, ImageCaption
+					]
+				} )
+				.then( newEditor => {
+					editor = newEditor;
+					model = editor.model;
+					view = editor.editing.view;
+					viewDocument = view.document;
+				} );
+		} );
+
+		afterEach( () => {
+			return editor.destroy();
+		} );
+
+		it( 'inserts soft break and text in the caption element', () => {
+			setModelData(
+				model,
+				'<paragraph>Foo.</paragraph><image src="foo.png"><caption>Foo.[]</caption></image><paragraph>Bar.</paragraph>'
+			);
+
+			viewDocument.fire( 'enter', new DomEventData( viewDocument, getDomEvent(), { isSoft: true } ) );
+			editor.commands.execute( 'input', { text: 'Abc.' } );
+			viewDocument.fire( 'enter', new DomEventData( viewDocument, getDomEvent(), { isSoft: false } ) );
+
+			assertModelData(
+				'<paragraph>Foo.</paragraph>' +
+					'<image src="foo.png"><caption>Foo.<softBreak></softBreak>Abc.[]</caption></image>' +
+				'<paragraph>Bar.</paragraph>'
+			);
+
+			/* eslint-disable max-len */
+			assertViewData(
+				'<p>Foo.</p>' +
+				'<figure class="ck-widget image" contenteditable="false">' +
+					'<img src="foo.png"></img>' +
+					'<figcaption class="ck-editor__editable ck-editor__nested-editable" contenteditable="true" data-placeholder="Enter image caption">' +
+						'Foo.<br></br>Abc.{}' +
+					'</figcaption>' +
+				'</figure>' +
+				'<p>Bar.</p>'
+			);
+			/* eslint-enable max-len */
+		} );
+	} );
+
+	function getDomEvent() {
+		return {
+			preventDefault: sinon.spy()
+		};
+	}
+
+	function assertModelData( output ) {
+		expect( getModelData( model ) ).to.equal( output );
+	}
+
+	function assertViewData( output ) {
+		expect( getViewData( view ) ).to.equal( output );
+	}
+} );