diff --git a/Library/Homebrew/cli/args.rb b/Library/Homebrew/cli/args.rb
index 202b5557db..b4dfc2b9cb 100644
--- a/Library/Homebrew/cli/args.rb
+++ b/Library/Homebrew/cli/args.rb
@@ -175,6 +175,12 @@ module Homebrew
         formulae.any? { |args_f| args_f.full_name == f.full_name }
       end
 
+      def include_formula_test_deps?(f)
+        return false unless include_test?
+
+        formulae.any? { |args_f| args_f.full_name == f.full_name }
+      end
+
       private
 
       def option_to_name(option)
diff --git a/Library/Homebrew/formula_installer.rb b/Library/Homebrew/formula_installer.rb
index affeae46ef..691432ff5c 100644
--- a/Library/Homebrew/formula_installer.rb
+++ b/Library/Homebrew/formula_installer.rb
@@ -490,7 +490,7 @@ class FormulaInstaller
         Dependency.prune
       elsif dep.test? || (dep.build? && install_bottle_for?(dependent, build))
         keep = false
-        keep ||= dep.test? && include_test? && dependent == formula
+        keep ||= dep.test? && include_test? && Homebrew.args.include_formula_test_deps?(dependent)
         keep ||= dep.build? && !install_bottle_for?(dependent, build)
         Dependency.prune unless keep
       elsif dep.prune_if_build_and_not_dependent?(dependent)
@@ -569,6 +569,7 @@ class FormulaInstaller
 
     fi.build_from_source       = Homebrew.args.build_formula_from_source?(df)
     fi.force_bottle            = false
+    fi.include_test            = Homebrew.args.include_formula_test_deps?(df)
     fi.verbose                 = verbose?
     fi.quiet                   = quiet?
     fi.debug                   = debug?
@@ -611,6 +612,7 @@ class FormulaInstaller
     fi.options                &= df.options
     fi.build_from_source       = Homebrew.args.build_formula_from_source?(df)
     fi.force_bottle            = false
+    fi.include_test            = Homebrew.args.include_formula_test_deps?(df)
     fi.verbose                 = verbose?
     fi.quiet                   = quiet?
     fi.debug                   = debug?