Move non-empty files from test dir to spec and adopt specs

Signed-off-by: Sebastian Serth <Sebastian.Serth@student.hpi.de>

spec/factories/error_template_attributes.rb

@@ -0,0 +1,6 @@
+FactoryBot.define do
+  factory :error_template_attribute do
+    key { "MyString" }
+    regex { "MyString" }
+  end
+end

spec/factories/error_templates.rb

@@ -0,0 +1,7 @@
+FactoryBot.define do
+  factory :error_template do
+    execution_environment { nil }
+    name { "MyString" }
+    signature { "MyString" }
+  end
+end

spec/factories/structured_error_attributes.rb

@@ -0,0 +1,7 @@
+FactoryBot.define do
+  factory :structured_error_attribute do
+    structured_error { nil }
+    error_template_attribute { nil }
+    value { "MyString" }
+  end
+end

spec/factories/structured_errors.rb

@@ -0,0 +1,6 @@
+FactoryBot.define do
+  factory :structured_error do
+    error_template { nil }
+    submission { nil }
+  end
+end