fix(react): add assertion function to assert condition (#159)

* fix(assert): add assertion function to assert condition * Create spotty-rocks-dance.md * Update .changeset/spotty-rocks-dance.md * Update packages/react/src/utils/assert.ts Co-authored-by: 박찬혁 <[email protected]> * test(react): modify assertion test code. (#162) * fix(react): add assertion function to assert conditionchange some test code * fix(react): revert script * Update packages/react/src/utils/assert.spec.ts Co-authored-by: Jonghyeon Ko <[email protected]> * Update packages/react/src/utils/assert.spec.ts Co-authored-by: Jonghyeon Ko <[email protected]> * Update packages/react/src/utils/assert.spec.ts Co-authored-by: Jonghyeon Ko <[email protected]> --------- Co-authored-by: Jonghyeon Ko <[email protected]> --------- Co-authored-by: 박찬혁 <[email protected]>
toss · Sep 22, 2023 · eac6832 · eac6832 · vercel · Sep 22, 2023
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diff --git a/.changeset/spotty-rocks-dance.md b/.changeset/spotty-rocks-dance.md
@@ -0,0 +1,5 @@
+---
+"@suspensive/react": patch
+---
+
+fix(react): add assertion function to assert condition
diff --git a/packages/react/src/utils/assert.spec.ts b/packages/react/src/utils/assert.spec.ts
@@ -0,0 +1,34 @@
+import { assert } from '.'
+
+function get(type: 'foo' | 'bar') {
+  switch (type) {
+    case 'foo':
+      return {
+        foo1: 'foo1',
+        foo2: 'foo2',
+      } as const
+    case 'bar':
+      return {
+        bar1: 'bar1',
+        bar2: 'bar2',
+      } as const
+    default: {
+      throw new Error('no type')
+    }
+  }
+}
+
+describe('assert', () => {
+  // eslint-disable-next-line vitest/expect-expect
+  it('should assert condition', () => {
+    const data = get('foo')
+    assert(data.foo1 === 'foo1', 'dummy-message')
+    expectTypeOf(data.foo2).toMatchTypeOf<string>()
+    expectTypeOf(data.bar1).not.toMatchTypeOf<string>()
+  })
+
+  it('should throw error if given condition is not met', () => {
+    const value = 'baz' as string
+    expect(() => assert(value === 'paz', "value should be 'paz'")).toThrow("value should be 'paz'")
+  })
+})
diff --git a/packages/react/src/utils/assert.ts b/packages/react/src/utils/assert.ts
@@ -0,0 +1,5 @@
+export function assert(condition: boolean, message: string): asserts condition {
+  if (!condition) {
+    throw new Error(message)
+  }
+}
diff --git a/packages/react/src/utils/index.ts b/packages/react/src/utils/index.ts
@@ -1,2 +1,3 @@
 export { hasResetKeysChanged } from './hasResetKeysChanged'
 export { hashKey } from './hashKey'
+export { assert } from './assert'