diff --git a/test/svg-sprite/mode/css/css.build-svg.test.js b/test/svg-sprite/mode/css/css.build-svg.test.js
new file mode 100644
index 000000000..86112c69d
--- /dev/null
+++ b/test/svg-sprite/mode/css/css.build-svg.test.js
@@ -0,0 +1,191 @@
+'use strict';
+
+const SVGSpriteCss = require('../../../../lib/svg-sprite/mode/css.js');
+const SVGSprite = require('../../../../lib/svg-sprite/sprite.js');
+
+jest.mock('../../../../lib/svg-sprite/sprite.js');
+
+describe('testing _buildSVG', () => {
+    const testConstructor = jest.fn();
+
+    beforeEach(() => {
+        SVGSprite.mockImplementationOnce((...args) => {
+            testConstructor(...args);
+        });
+    });
+
+    it('should include rootAttributes', () => {
+        const TEST_ATTRIBUTES = {
+            TEST: 1,
+            TEST_2: 2
+        };
+        const mockedSprite = {
+            config: {
+                svg: {
+                    rootAttributes: TEST_ATTRIBUTES
+                }
+            },
+            data: {
+                shapes: {}
+            },
+            declaration: jest.fn(),
+            _spriter: {
+                config: {}
+            },
+            _addCacheBusting: jest.fn(),
+            transform: []
+        };
+
+        SVGSpriteCss.prototype._buildSVG.call(mockedSprite);
+
+        expect(testConstructor).toHaveBeenCalledWith(undefined, undefined, expect.objectContaining(TEST_ATTRIBUTES), true, undefined);
+    });
+
+    it('should set width and height', () => {
+        const TEST_WIDTH = 200;
+        const TEST_HEIGHT = 400;
+
+        const mockedSprite = {
+            config: {
+                svg: {
+                    rootAttributes: {},
+                    dimensionAttributes: true
+                }
+            },
+            data: {
+                shapes: {},
+                spriteWidth: TEST_WIDTH,
+                spriteHeight: TEST_HEIGHT
+            },
+            declaration: jest.fn(),
+            _spriter: {
+                config: {}
+            },
+            _addCacheBusting: jest.fn(),
+            transform: []
+        };
+
+        SVGSpriteCss.prototype._buildSVG.call(mockedSprite);
+
+        expect(testConstructor).toHaveBeenCalledWith(undefined, undefined, {
+            height: TEST_HEIGHT,
+            viewBox: `0 0 ${TEST_WIDTH} ${TEST_HEIGHT}`,
+            width: TEST_WIDTH
+        }, true, undefined);
+    });
+
+    it('should call declaration with expected params', () => {
+        const TEST_XML_DECLARATION = 'test xml declaration';
+        const TEST_DOC_DECLARATION = 'test doctype declaration';
+        const TEST_FIRST_RESULT = 'first result';
+        const TEST_SECOND_RESULT = 'second result';
+
+        const mockedSprite = {
+            config: {
+                svg: {
+                    rootAttributes: {},
+                    dimensionAttributes: true,
+                    xmlDeclaration: 'xmlDeclaration',
+                    doctypeDeclaration: 'doctypeDeclaration'
+                }
+            },
+            data: {
+                shapes: {}
+            },
+            declaration: jest.fn().mockReturnValueOnce(TEST_FIRST_RESULT).mockReturnValueOnce(TEST_SECOND_RESULT),
+            _spriter: {
+                config: {}
+            },
+            _addCacheBusting: jest.fn(),
+            transform: []
+        };
+
+        SVGSpriteCss.prototype._buildSVG.call(mockedSprite, TEST_XML_DECLARATION, TEST_DOC_DECLARATION);
+
+        expect(mockedSprite.declaration).toHaveBeenCalledTimes(2);
+        // eslint-disable-next-line jest/prefer-strict-equal
+        expect(mockedSprite.declaration.mock.calls[0]).toEqual([mockedSprite.config.svg.xmlDeclaration, TEST_XML_DECLARATION]);
+        // eslint-disable-next-line jest/prefer-strict-equal
+        expect(mockedSprite.declaration.mock.calls[1]).toEqual([mockedSprite.config.svg.doctypeDeclaration, TEST_DOC_DECLARATION]);
+    });
+
+    it('should add files to svg', () => {
+        const testAdd = jest.fn();
+        const TEST_SHAPE_1 = { TEST: 1 };
+        const TEST_SHAPE_2 = { TEST: 2 };
+        const mockedSprite = {
+            config: {
+                svg: {
+                    rootAttributes: {}
+                }
+            },
+            data: {
+                shapes: {
+                    shape1: {
+                        svg: TEST_SHAPE_1
+                    },
+                    shape2: {
+                        svg: TEST_SHAPE_2
+                    }
+                }
+            },
+            declaration: jest.fn(),
+            _spriter: {
+                config: {}
+            },
+            _addCacheBusting: jest.fn(),
+            transform: []
+        };
+
+        SVGSprite.mockRestore();
+        SVGSprite.mockImplementationOnce(() => {
+            return {
+                add: testAdd,
+                toFile: jest.fn()
+            };
+        });
+
+        SVGSpriteCss.prototype._buildSVG.call(mockedSprite);
+
+        expect(testAdd).toHaveBeenCalledWith([TEST_SHAPE_1, TEST_SHAPE_2]);
+    });
+
+    it('should call toFile', () => {
+        const testToFile = jest.fn();
+        const TEST_CACHE_KEY = 'test cache key';
+        const testCacheBusting = jest.fn().mockReturnValueOnce(TEST_CACHE_KEY);
+        const mockedSprite = {
+            config: {
+                svg: {
+                    rootAttributes: {}
+                }
+            },
+            data: {
+                shapes: {}
+            },
+            declaration: jest.fn(),
+            _spriter: {
+                config: {
+                    dest: '.'
+                }
+            },
+            _addCacheBusting: testCacheBusting
+        };
+
+        const TEST_SVG = {
+            add: jest.fn(),
+            toFile: testToFile
+        };
+
+        SVGSprite.mockRestore();
+        SVGSprite.mockImplementationOnce(() => {
+            return TEST_SVG;
+        });
+
+        SVGSpriteCss.prototype._buildSVG.call(mockedSprite);
+
+        expect(testCacheBusting).toHaveBeenCalledWith(TEST_SVG);
+
+        expect(testToFile).toHaveBeenCalledWith('.', TEST_CACHE_KEY);
+    });
+});