:bug: fix design token type and add test · ZeroGachis/smartway-design-token@e6b82c7

src/Tokens/Tokens.test.ts#L4

Cannot find name 'describe'. Do you need to install type definitions for a test runner? Try `npm i --save-dev @types/jest` or `npm i --save-dev @types/mocha`.

src/Tokens/Tokens.test.ts#L6

Cannot find name 'it'. Do you need to install type definitions for a test runner? Try `npm i --save-dev @types/jest` or `npm i --save-dev @types/mocha`.

src/Tokens/Tokens.test.ts#L8

Cannot find name 'expect'.

src/Tokens/Tokens.test.ts#L9

Cannot find name 'expect'.

src/Tokens/Tokens.test.ts#L10

Cannot find name 'expect'.

src/Tokens/Tokens.test.ts#L13

Cannot find name 'it'. Do you need to install type definitions for a test runner? Try `npm i --save-dev @types/jest` or `npm i --save-dev @types/mocha`.

src/Tokens/Tokens.test.ts#L15

Cannot find name 'expect'.

src/Tokens/Tokens.test.ts#L16

Cannot find name 'expect'.

src/Tokens/Tokens.test.ts#L17

Cannot find name 'expect'.

src/Tokens/Tokens.test.ts#L18

Cannot find name 'expect'.