Fix tests

Author: Rylan12

Library/Homebrew/formula.rb

@@ -2558,7 +2558,7 @@ def runtime_installed_formula_dependents
   sig { params(hide: T::Array[String]).returns(T::Array[Dependency]) }
   def missing_dependencies(hide: [])
     runtime_dependencies(read_from_tab: true, undeclared: true).select do |f|
-      hide.include?(f.name) || !f.installed?
+      hide.include?(f.name) || f.to_installed_formula.installed_prefixes.none?
     end
   # If we're still getting unavailable formulae at this stage the best we can
   # do is just return no results.

Library/Homebrew/formulary.rb

@@ -944,7 +944,7 @@ def self.try_new(ref, from: nil, warn: false)
       keg = Keg.new(keg_directory)
       return unless (keg_formula = HOMEBREW_PREFIX/"opt/#{ref}/.brew/#{keg.name}.rb").file?
 
-      new(keg.name, keg_formula)
+      new(keg.name, keg_formula, tap: keg.tab.tap)
     end
   end
 

Library/Homebrew/installed_dependents.rb

@@ -26,7 +26,7 @@ def find_some_installed_dependents(kegs, casks: [])
     kegs_by_source = kegs.group_by do |keg|
       # First, attempt to resolve the keg to a formula
       # to get up-to-date name and tap information.
-      f = keg.to_installed_formula
+      f = keg.to_formula
       keg_formulae << f
       [f.name, f.tap]
     rescue
@@ -47,7 +47,7 @@ def find_some_installed_dependents(kegs, casks: [])
         dependent.missing_dependencies(hide: keg_names).map(&:to_installed_formula)
       when Cask::Cask
         # When checking for cask dependents, we don't care about missing or non-runtime dependencies
-        CaskDependent.new(dependent).runtime_dependencies
+        CaskDependent.new(dependent).runtime_dependencies.map(&:to_installed_formula)
       end
 
       required_kegs = required.filter_map do |f|

Library/Homebrew/test/support/helper/formula.rb

@@ -15,7 +15,7 @@ def formula(name = "formula_name", path: nil, spec: :stable, alias_path: nil, ta
       def stub_formula_loader(formula, ref = formula.full_name, call_original: false)
         allow(Formulary).to receive(:loader_for).and_call_original if call_original
 
-        loader = instance_double(Formulary::FormulaLoader, get_formula: formula)
+        loader = instance_double(Formulary::FormulaLoader, get_formula: formula, name: formula.name)
         allow(Formulary).to receive(:loader_for).with(ref, any_args).and_return(loader)
       end
     end