---
test:
  a.rb:
    diagnostics:
    - |
      a.rb:5:0: [error] Cannot assign a value of type `(::Symbol | nil)` to a variable of type `::String`
      │   (::Symbol | nil) <: ::String
      │     ::Symbol <: ::String
      │       ::Object <: ::String
      │         ::BasicObject <: ::String
      │
      │ Diagnostic ID: Ruby::IncompatibleAssignment
      │
      └ a = if x
        ~~~~~~~~
    - |
      a.rb:15:0: [error] Cannot assign a value of type `(::String | ::Integer)` to a variable of type `::String`
      │   (::String | ::Integer) <: ::String
      │     ::Integer <: ::String
      │       ::Numeric <: ::String
      │         ::Object <: ::String
      │           ::BasicObject <: ::String
      │
      │ Diagnostic ID: Ruby::IncompatibleAssignment
      │
      └ a = if z
        ~~~~~~~~