[test][keyvault] replace assert.ok with specific assertions

[jeremymeng]

No description provided.

[Copilot]

Pull Request Overview

This PR refactors test assertions across the keyvault packages to use more specific assertion methods instead of the generic assert.ok(). The changes improve test readability and provide clearer failure messages when assertions fail.

Key changes:

• Replace assert.ok() with assert.isTrue() for boolean checks
• Replace assert.ok(x instanceof Y) with assert.instanceOf(x, Y) for type checks
• Replace assert.ok(x > y) with assert.isAbove(x, y) for numeric comparisons
• Replace assert.ok(!x) with assert.isFalse(x) for negated boolean checks

Reviewed Changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
sdk/keyvault/keyvault-secrets/test/public/recoverBackupRestore.spec.ts	Updated length comparison to use assert.isAbove
sdk/keyvault/keyvault-secrets/test/public/lro.recover.spec.ts	Replaced assert.ok with assert.isTrue, assert.isFalse, and assert.instanceOf for poller state checks
sdk/keyvault/keyvault-secrets/test/public/lro.delete.spec.ts	Replaced assert.ok with assert.isTrue, assert.isFalse, and assert.instanceOf for poller state checks
sdk/keyvault/keyvault-secrets/test/public/CRUD.spec.ts	Updated Date instance checks to use assert.instanceOf
sdk/keyvault/keyvault-keys/test/public/node/localCryptography.spec.ts	Updated verification result check to use assert.isTrue
sdk/keyvault/keyvault-keys/test/public/node/crypto.spec.ts	Updated verification result checks to use assert.isTrue
sdk/keyvault/keyvault-keys/test/public/lro.recoverDelete.spec.ts	Replaced assert.ok with assert.isTrue, assert.isFalse, and assert.equal for poller state checks
sdk/keyvault/keyvault-keys/test/public/lro.delete.spec.ts	Replaced assert.ok with assert.isTrue, assert.isFalse, and assert.equal for poller state checks
sdk/keyvault/keyvault-keys/test/internal/recoverBackupRestore.spec.ts	Updated length comparison to use assert.isAbove
sdk/keyvault/arm-keyvault/test/keyvault.spec.ts	Updated array length check to use assert.isAbove