deselect all #7

Author: codingedgar

package.json

@@ -1,6 +1,6 @@
 {
   "name": "macos-multi-select",
-  "version": "0.0.2",
+  "version": "0.0.3",
   "description": "Given a list of ids, and an action, return a list of selected items with the same behaviour of macOS finder list view selection.",
   "main": "dist/index.js",
   "repository": "[email protected]:codingedgar/macos-multi-select.git",

src/index.ts

@@ -6,6 +6,7 @@ export type Context = {
 type Command =
   | { type: "SELECT ONE", id: string }
   | { type: "TOGGLE SELECTION", id: string }
+  | { type: "DESELECT ALL" }
 
 export function multiselect(context: Context, command: Command): Context {
   if (command.type === "SELECT ONE" && context.list.includes(command.id)) {
@@ -30,6 +31,11 @@ export function multiselect(context: Context, command: Command): Context {
       ...context,
       selected: context.selected.concat([command.id])
     };
+  } else if (command.type === "DESELECT ALL") {
+    return {
+      ...context,
+      selected: []
+    }
   } else {
     return context;
   }

src/spec/deselectAll.spec.ts

@@ -0,0 +1,45 @@
+import fc from 'fast-check';
+import { multiselect, Context } from '../index';
+
+describe('Deselect All', () => {
+  test('should deselect all', () => {
+
+    fc.assert(
+      fc.property(
+        fc.set(
+          fc.string()
+        )
+        .filter(list => list.length > 0)
+        .chain(list =>
+          fc.record({
+            list: fc.constant(list),
+            selected: fc.set(
+              fc.integer(0, list.length-1)
+              .map(index => list[index]),
+            ),
+          })  
+        ),
+        ({
+          list,
+          selected
+        }) => {
+          expect(
+            multiselect(
+              {
+                list,
+                selected,
+              },
+              {
+                type: "DESELECT ALL",
+              }
+            )
+          )
+          .toEqual({
+            list,
+            selected: []
+          })
+        }
+      )
+    )
+  });
+})

src/spec/selectOne.ts renamed to src/spec/selectOne.spec.ts

@@ -1,7 +1,7 @@
 import fc from 'fast-check';
 import { multiselect } from '../index';
 
-describe('Select an Item', () => {
+describe('Select One Item', () => {
   test('should be able to select one item in a non empty list', () => {
 
     fc.assert(

src/spec/toggleSelection.spec.ts

@@ -1,7 +1,7 @@
 import fc from 'fast-check';
 import { multiselect, Context } from '../index';
 
-describe('TOGGLE SELECTION', () => {
+describe('Toggle Selection', () => {
   test('should be able to add to selection one item in a non empty list', () => {
 
     fc.assert(