- A
Instance Public methods
assert_class_method(method, content, &block) Link
Asserts the given class method exists in the given content. This method does not detect class methods inside (class << self), only class methods which starts with “self.”. When a block is given, it yields the content of the method.
assert_migration "db/migrate/create_products.rb" do |migration|
assert_class_method :up, migration do |up|
assert_match(/create_table/, up)
end
end
assert_field_default_value(attribute_type, value) Link
Asserts the given attribute type gets a proper default value:
assert_field_default_value :string, "MyString"
# File railties/lib/rails/generators/testing/assertions.rb, line 117 def assert_field_default_value(attribute_type, value) if value.nil? assert_nil(create_generated_attribute(attribute_type).default) else assert_equal(value, create_generated_attribute(attribute_type).default) end end
assert_field_type(attribute_type, field_type) Link
Asserts the given attribute type gets translated to a field type properly:
assert_field_type :date, :date_select
assert_file(relative, *contents) Link
Asserts a given file exists. You need to supply an absolute path or a path relative to the configured destination:
assert_file "config/environment.rb"
You can also give extra arguments. If the argument is a regexp, it will check if the regular expression matches the given file content. If it’s a string, it compares the file with the given string:
assert_file "config/environment.rb", /initialize/
Finally, when a block is given, it yields the file content:
assert_file "app/controllers/products_controller.rb" do |controller|
assert_instance_method :index, controller do |index|
assert_match(/Product\.all/, index)
end
end
# File railties/lib/rails/generators/testing/assertions.rb, line 25 def assert_file(relative, *contents) absolute = File.expand_path(relative, destination_root) assert File.exist?(absolute), "Expected file #{relative.inspect} to exist, but does not" read = File.read(absolute) if block_given? || !contents.empty? assert_nothing_raised { yield read } if block_given? contents.each do |content| case content when String assert_equal content, read when Regexp assert_match content, read end end end
assert_initializer(name, *contents, &block) Link
Asserts a given initializer exists. You need to supply a path relative to the ‘config/initializers/` directory.
assert_initializer "mail_interceptors.rb"
You can also give extra arguments. If the argument is a regexp, it will check if the regular expression matches the given file content. If it’s a string, it compares the file with the given string:
assert_initializer "mail_interceptors.rb", /SandboxEmailInterceptor/
Finally, when a block is given, it yields the file content:
assert_initializer "mail_interceptors.rb" do |initializer|
assert_match(/SandboxEmailInterceptor/, initializer)
end
assert_instance_method(method, content) Link
Asserts the given method exists in the given content. When a block is given, it yields the content of the method.
assert_file "app/controllers/products_controller.rb" do |controller|
assert_instance_method :index, controller do |index|
assert_match(/Product\.all/, index)
end
end
assert_migration(relative, *contents, &block) Link
Asserts a given migration exists. You need to supply an absolute path or a path relative to the configured destination:
assert_migration "db/migrate/create_products.rb"
This method manipulates the given path and tries to find any migration which matches the migration name. For example, the call above is converted to:
assert_file "db/migrate/003_create_products.rb"
Consequently, assert_migration
accepts the same arguments has assert_file.
# File railties/lib/rails/generators/testing/assertions.rb, line 64 def assert_migration(relative, *contents, &block) file_name = migration_file_name(relative) assert file_name, "Expected migration #{relative} to exist, but was not found" assert_file file_name, *contents, &block end
assert_no_file(relative) Link
Asserts a given file does not exist. You need to supply an absolute path or a path relative to the configured destination:
assert_no_file "config/random.rb"
assert_no_migration(relative) Link
Asserts a given migration does not exist. You need to supply an absolute path or a path relative to the configured destination:
assert_no_migration "db/migrate/create_products.rb"