diff --git a/packages/react-bootstrap-table2-filter/test/components/multiselect.test.js b/packages/react-bootstrap-table2-filter/test/components/multiselect.test.js
new file mode 100644
index 0000000..fc1eb73
--- /dev/null
+++ b/packages/react-bootstrap-table2-filter/test/components/multiselect.test.js
@@ -0,0 +1,354 @@
+import 'jsdom-global/register';
+import React from 'react';
+import sinon from 'sinon';
+import { mount } from 'enzyme';
+import MultiSelectFilter from '../../src/components/multiselect';
+import { FILTER_TYPE } from '../../src/const';
+
+
+describe('Multi Select Filter', () => {
+  let wrapper;
+  let instance;
+
+  // onFilter(x)(y) = filter result
+  const onFilter = sinon.stub();
+  const onFilterFirstReturn = sinon.stub();
+
+  const column = {
+    dataField: 'quality',
+    text: 'Product Quality'
+  };
+
+  const options = {
+    0: 'Bad',
+    1: 'Good',
+    2: 'Unknown'
+  };
+
+  afterEach(() => {
+    onFilter.reset();
+    onFilterFirstReturn.reset();
+
+    onFilter.returns(onFilterFirstReturn);
+  });
+
+  describe('initialization', () => {
+    beforeEach(() => {
+      wrapper = mount(
+        <MultiSelectFilter onFilter={ onFilter } column={ column } options={ options } />
+      );
+      instance = wrapper.instance();
+    });
+
+    it('should have correct state', () => {
+      expect(instance.state.isSelected).toBeFalsy();
+    });
+
+    it('should rendering component successfully', () => {
+      expect(wrapper).toHaveLength(1);
+      expect(wrapper.find('select')).toHaveLength(1);
+      expect(wrapper.find('.select-filter')).toHaveLength(1);
+      expect(wrapper.find('.placeholder-selected')).toHaveLength(1);
+    });
+
+    it('should rendering select options correctly', () => {
+      const select = wrapper.find('select');
+      expect(select.find('option')).toHaveLength(Object.keys(options).length + 1);
+      expect(select.childAt(0).text()).toEqual(`Select ${column.text}...`);
+
+      Object.keys(options).forEach((key, i) => {
+        expect(select.childAt(i + 1).prop('value')).toEqual(key);
+        expect(select.childAt(i + 1).text()).toEqual(options[key]);
+      });
+    });
+  });
+
+  describe('when defaultValue is defined', () => {
+    let defaultValue;
+
+    describe('and it is valid', () => {
+      beforeEach(() => {
+        defaultValue = ['0'];
+        wrapper = mount(
+          <MultiSelectFilter
+            onFilter={ onFilter }
+            column={ column }
+            options={ options }
+            defaultValue={ defaultValue }
+          />
+        );
+        instance = wrapper.instance();
+      });
+
+      it('should have correct state', () => {
+        expect(instance.state.isSelected).toBeTruthy();
+      });
+
+      it('should rendering component successfully', () => {
+        expect(wrapper).toHaveLength(1);
+        expect(wrapper.find('.placeholder-selected')).toHaveLength(0);
+      });
+
+      it('should calling onFilter on componentDidMount', () => {
+        expect(onFilter.calledOnce).toBeTruthy();
+        expect(onFilter.calledWith(column, FILTER_TYPE.MULTISELECT)).toBeTruthy();
+        expect(onFilterFirstReturn.calledOnce).toBeTruthy();
+        expect(onFilterFirstReturn.calledWith(defaultValue)).toBeTruthy();
+      });
+    });
+  });
+
+  describe('when props.getFilter is defined', () => {
+    let programmaticallyFilter;
+
+    const filterValue = ['foo'];
+
+    const getFilter = (filter) => {
+      programmaticallyFilter = filter;
+    };
+
+    beforeEach(() => {
+      wrapper = mount(
+        <MultiSelectFilter
+          onFilter={ onFilter }
+          column={ column }
+          options={ options }
+          getFilter={ getFilter }
+        />
+      );
+      instance = wrapper.instance();
+
+      programmaticallyFilter(filterValue);
+    });
+
+    it('should do onFilter correctly when exported function was executed', () => {
+      expect(onFilter.calledOnce).toBeTruthy();
+      expect(onFilter.calledWith(column, FILTER_TYPE.MULTISELECT)).toBeTruthy();
+      expect(onFilterFirstReturn.calledOnce).toBeTruthy();
+      expect(onFilterFirstReturn.calledWith(filterValue)).toBeTruthy();
+    });
+
+    it('should setState correctly when exported function was executed', () => {
+      expect(instance.state.isSelected).toBeTruthy();
+    });
+  });
+
+  describe('when placeholder is defined', () => {
+    const placeholder = 'test';
+    beforeEach(() => {
+      wrapper = mount(
+        <MultiSelectFilter
+          onFilter={ onFilter }
+          column={ column }
+          options={ options }
+          placeholder={ placeholder }
+        />
+      );
+      instance = wrapper.instance();
+    });
+
+    it('should rendering component successfully', () => {
+      expect(wrapper).toHaveLength(1);
+      const select = wrapper.find('select');
+      expect(select.childAt(0).text()).toEqual(placeholder);
+    });
+  });
+
+  describe('when style is defined', () => {
+    const style = { backgroundColor: 'red' };
+    beforeEach(() => {
+      wrapper = mount(
+        <MultiSelectFilter
+          onFilter={ onFilter }
+          column={ column }
+          options={ options }
+          style={ style }
+        />
+      );
+    });
+
+    it('should rendering component successfully', () => {
+      expect(wrapper).toHaveLength(1);
+      expect(wrapper.find('select').prop('style')).toEqual(style);
+    });
+  });
+
+  describe('when withoutEmptyOption is defined', () => {
+    beforeEach(() => {
+      wrapper = mount(
+        <MultiSelectFilter
+          onFilter={ onFilter }
+          column={ column }
+          options={ options }
+          withoutEmptyOption
+        />
+      );
+    });
+
+    it('should rendering select without default empty option', () => {
+      const select = wrapper.find('select');
+      expect(select.find('option')).toHaveLength(Object.keys(options).length);
+    });
+  });
+
+  describe('componentDidUpdate', () => {
+    let prevProps;
+
+    describe('when props.defaultValue is diff from prevProps.defaultValue', () => {
+      const defaultValue = ['0'];
+
+      beforeEach(() => {
+        wrapper = mount(
+          <MultiSelectFilter
+            onFilter={ onFilter }
+            column={ column }
+            options={ options }
+            defaultValue={ defaultValue }
+          />
+        );
+        prevProps = {
+          column,
+          options,
+          defaultValue: ['1']
+        };
+        instance = wrapper.instance();
+        instance.componentDidUpdate(prevProps);
+      });
+
+      it('should update', () => {
+        expect(onFilter.callCount).toBe(2);
+        expect(onFilter.calledWith(column, FILTER_TYPE.MULTISELECT)).toBeTruthy();
+        expect(onFilterFirstReturn.callCount).toBe(2);
+        expect(onFilterFirstReturn.calledWith(instance.props.defaultValue)).toBeTruthy();
+      });
+    });
+
+    describe('when props.options is diff from prevProps.options', () => {
+      const defaultValue = ['0'];
+      beforeEach(() => {
+        wrapper = mount(
+          <MultiSelectFilter
+            onFilter={ onFilter }
+            column={ column }
+            options={ {
+              ...options,
+              3: 'Best'
+            } }
+            defaultValue={ defaultValue }
+          />
+        );
+        prevProps = {
+          column,
+          options
+        };
+        instance = wrapper.instance();
+        instance.componentDidUpdate(prevProps);
+      });
+
+      it('should update', () => {
+        expect(onFilter.callCount).toBe(2);
+        expect(onFilter.calledWith(column, FILTER_TYPE.MULTISELECT)).toBeTruthy();
+        expect(onFilterFirstReturn.callCount).toBe(2);
+        expect(onFilterFirstReturn.calledWith(instance.props.defaultValue)).toBeTruthy();
+      });
+    });
+  });
+
+  describe('cleanFiltered', () => {
+    describe('when props.defaultValue is defined', () => {
+      const defaultValue = ['0'];
+      beforeEach(() => {
+        wrapper = mount(
+          <MultiSelectFilter
+            onFilter={ onFilter }
+            column={ column }
+            options={ options }
+            defaultValue={ defaultValue }
+          />
+        );
+        instance = wrapper.instance();
+        instance.cleanFiltered();
+      });
+
+      it('should setting state correctly', () => {
+        expect(instance.state.isSelected).toBeTruthy();
+      });
+
+      it('should calling onFilter correctly', () => {
+        expect(onFilter.callCount).toBe(2);
+        expect(onFilter.calledWith(column, FILTER_TYPE.MULTISELECT)).toBeTruthy();
+        expect(onFilterFirstReturn.callCount).toBe(2);
+        expect(onFilterFirstReturn.calledWith(defaultValue)).toBeTruthy();
+      });
+    });
+
+    describe('when props.defaultValue is not defined', () => {
+      beforeEach(() => {
+        wrapper = mount(
+          <MultiSelectFilter
+            onFilter={ onFilter }
+            column={ column }
+            options={ options }
+          />
+        );
+        instance = wrapper.instance();
+        instance.cleanFiltered();
+      });
+
+      it('should setting state correctly', () => {
+        expect(instance.state.isSelected).toBeFalsy();
+      });
+
+      it('should calling onFilter correctly', () => {
+        expect(onFilter.callCount).toBe(1);
+        expect(onFilterFirstReturn.callCount).toBe(1);
+      });
+    });
+  });
+
+  describe('applyFilter', () => {
+    const values = ['2'];
+    beforeEach(() => {
+      wrapper = mount(
+        <MultiSelectFilter onFilter={ onFilter } column={ column } options={ options } />
+      );
+      instance = wrapper.instance();
+      instance.applyFilter(values);
+    });
+
+    it('should setting state correctly', () => {
+      expect(instance.state.isSelected).toBeTruthy();
+    });
+
+    it('should calling onFilter correctly', () => {
+      expect(onFilter.calledOnce).toBeTruthy();
+      expect(onFilter.calledWith(column, FILTER_TYPE.MULTISELECT)).toBeTruthy();
+      expect(onFilterFirstReturn.calledOnce).toBeTruthy();
+      expect(onFilterFirstReturn.calledWith(values)).toBeTruthy();
+    });
+  });
+
+  describe('filter', () => {
+    const event = { target: { selectedOptions: [{ value: 'tester'}] } };
+
+    beforeEach(() => {
+      wrapper = mount(
+        <MultiSelectFilter onFilter={ onFilter } column={ column } options={ options } />
+      );
+      instance = wrapper.instance();
+      instance.filter(event);
+    });
+
+    it('should setting state correctly', () => {
+      expect(instance.state.isSelected).toBeTruthy();
+    });
+
+    it('should calling onFilter correctly', () => {
+      expect(onFilter.calledOnce).toBeTruthy();
+      expect(onFilter.calledWith(column, FILTER_TYPE.MULTISELECT)).toBeTruthy();
+      expect(onFilterFirstReturn.calledOnce).toBeTruthy();
+      expect(onFilterFirstReturn.calledWith(
+        event.target.selectedOptions.map(item => item.value))).toBeTruthy();
+    });
+  });
+});