### Question:
AssignmentsEditorWidget extends Composite implements HasValue<String> { String getVariableCountsString(final String datainput, final String datainputset, final String dataoutput, final String dataoutputset, final String processvars, final String assignments, final String disallowedpropertynames) { String inputvars = null; if (datainput != null) { inputvars = datainput; } if (datainputset != null) { inputvars = datainputset; } String outputvars = null; if (dataoutput != null) { outputvars = dataoutput; } if (dataoutputset != null) { outputvars = dataoutputset; } AssignmentData assignmentData = new AssignmentData(inputvars, outputvars, processvars, assignments, disallowedpropertynames); return assignmentData.getVariableCountsString(hasInputVars, isSingleInputVar, hasOutputVars, isSingleOutputVar); } AssignmentsEditorWidget(final BPMNDefinition bpmnModel,
                            final String assignmentsInfo,
                            final boolean hasInputVars,
                            final boolean isSingleInputVar,
                            final boolean hasOutputVars,
                            final boolean isSingleOutputVar,
                            final SessionManager canvasSessionManager,
                            final GraphUtils graphUtils);  AssignmentsEditorWidget(); @EventHandler("assignmentsButton") void onClickAssignmentsButton(final ClickEvent clickEvent); @EventHandler("assignmentsTextBox") void onClickAssignmentsTextBox(final ClickEvent clickEvent); @Override String getValue(); @Override void setValue(final String value); @Override void setValue(final String value,
                         final boolean fireEvents); @Override HandlerRegistration addValueChangeHandler(final ValueChangeHandler<String> handler); void showAssignmentsDialog(); void showDataIOEditor(final String datatypes); void setReadOnly(final boolean readOnly); static final String DEFAULT_IGNORED_PROPERTY_NAMES; }### Answer:
@Test public void testGetVariableCountsString() { String variableCountsString = widget.getVariableCountsString(null, DATA_INPUT_SET, null, DATA_OUTPUT_SET, PROCESS_VARS, ASSIGNMENTS_MULTIPLE, widget.getDisallowedPropertyNames()); assertEquals("4 Data_Inputs, 2 Data_Outputs", variableCountsString); }