Leverage VerifyFile

[SimonCropp]

Description

needs a squash on merge

https://github.com/VerifyTests/Verify/blob/main/docs/verify-file.md

Fixes # (issue)

Checklist

• Is this feature complete?
  • Yes. Ready to ship.
  • No. Follow-up changes expected.
• Are you including unit tests for the changes and scenario tests if relevant?
  • Yes
  • No
• Did you add public API?
  • Yes
    • If yes, did you have an API Review for it?
      • Yes
      • No
    • Did you add <remarks /> and <code /> elements on your triple slash comments?
      • Yes
      • No
  • No
• Does the change make any security assumptions or guarantees?
  • Yes
    • If yes, have you done a threat model and had a security review?
      • Yes
      • No
  • No
• Does the change require an update in our Aspire docs?
  • Yes
    • Link to aspire-docs issue (consider using one of the following templates):
      • New (or update) doc-idea template
      • New breaking-change template
      • New diagnostic template
  • No

[Copilot]

Pull Request Overview

This PR replaces content-based snapshot verifications (Verify(content, ext)) with file-based verifications (VerifyFile(path)) across multiple test suites.

• Removed explicit file existence assertions and inline file reads
• Updated all snapshot calls to use VerifyFile with the file path

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
tests/Aspire.Hosting.Kubernetes.Tests/KubernetesPublisherTests.cs	Switched to VerifyFile(deploymentPath)
tests/Aspire.Hosting.Docker.Tests/DockerComposeTests.cs	Switched to VerifyFile(composeFile)
tests/Aspire.Hosting.Docker.Tests/DockerComposePublisherTests.cs	Switched multiple calls to VerifyFile
tests/Aspire.Hosting.Azure.Tests/AzureEnvironmentResourceTests.cs	Switched to VerifyFile(mainBicepPath)

Comments suppressed due to low confidence (4)

tests/Aspire.Hosting.Kubernetes.Tests/KubernetesPublisherTests.cs:100

• [nitpick] Consider retaining a file existence check or ensure VerifyFile surfaces a clear error when the file is missing to improve test diagnostics.

Assert.True(File.Exists(deploymentPath));

tests/Aspire.Hosting.Docker.Tests/DockerComposeTests.cs:70

• [nitpick] Consider keeping the precondition assert for file creation or verify that VerifyFile provides a descriptive failure when the file is absent.

Assert.True(File.Exists(composeFile), "Docker Compose file was not created.");

tests/Aspire.Hosting.Docker.Tests/DockerComposePublisherTests.cs:156

• [nitpick] Without the explicit existence check, a missing file may yield an unclear error; ensure VerifyFile reports missing files clearly or restore the assert.

Assert.True(File.Exists(composePath));

tests/Aspire.Hosting.Azure.Tests/AzureEnvironmentResourceTests.cs:71

• [nitpick] Recommend verifying file existence explicitly or confirming that VerifyFile handles non-existent paths with a meaningful message.

Assert.True(File.Exists(mainBicepPath));