Implement get method for MockDatabaseReference

[Zohenn]

Implemented get method for MockDatabaseReference. This is by no means the most performant code, but it gets the job done. I basically took the existing code for once, extracted most of it into a separate method and then used it to return MockDataSnapshot.

I added an additional test for MockDataSnapshot, but I didn't test the new method, since it's basically the same as once. At least as long as it supports DatabaseEventType.value only.

[Zohenn]

firebase_database_mocks/.github/workflows/main.yml

Line 33 in 5b54199

uses: subosito/flutter-action@v1

Perhaps changing this to uses: subosito/flutter-action@v2 might help for the failing build? Or you could try to build on Ubuntu instead of MacOS.

[sitatec]

Thanks @Zohenn for the PR. We need to resolve one conflict to merge it.

[Zohenn]

@sitatec done. I will try to implement other methods, though it needs a bit more work in order to not repeat the code. It should be done better than in this PR, so you can actually test this. I suppose you're not working on anything related to this package at the moment?

[codecov-commenter]

Codecov Report

Merging #7 (9472f48) into main (d5a95c8) will increase coverage by 0.83%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main       #7      +/-   ##
==========================================
+ Coverage   94.11%   94.94%   +0.83%     
==========================================
  Files           4        4              
  Lines          85       99      +14     
==========================================
+ Hits           80       94      +14     
  Misses          5        5              

Impacted Files	Coverage Δ
lib/src/mock_data_snapshot.dart	100.00% <100.00%> (ø)
lib/src/mock_database_reference.dart	94.87% <100.00%> (+0.58%)	⬆️
lib/src/mock_firebase_database.dart	100.00% <100.00%> (ø)

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[sitatec]

@Zohenn no, I haven't worked on something related to this package for a while.
I will try to write some unit tests on this PR before merging to not reduce the coverage

[Zohenn]

@sitatec I can do it too, will get it done today. The coverage will still decrease a bit anyway. It's just a metric after all.

[Zohenn]

@sitatec Could you run Codecov now?
I have also added coverage directory from Android Studio to .gitignore and removed pubspec.lock, as per https://dart.dev/guides/libraries/private-files#pubspeclock.

[Zohenn]

@sitatec Could you please take a look at this, or at least publish a new version to pub.dev with contents of #6 in it? It prevents me (and probably others) from updating other dependencies.

[Zohenn]

Huge thanks man!

[sitatec]

I just published the new version to pub.dev