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require 'hiera/fallback_logger'
describe Hiera::FallbackLogger do
before :each do
InMemoryLogger.reset
SuitableLogger.reset
end
it "delegates #warn to the logger implemenation" do
logger = Hiera::FallbackLogger.new(InMemoryLogger)
logger.warn("the message")
expect(InMemoryLogger.warnings).to eq(["the message"])
end
it "delegates #debug to the logger implemenation" do
logger = Hiera::FallbackLogger.new(InMemoryLogger)
logger.debug("the message")
expect(InMemoryLogger.debugs).to eq(["the message"])
end
it "chooses the first logger that is suitable" do
logger = Hiera::FallbackLogger.new(UnsuitableLogger, SuitableLogger)
logger.warn("for the suitable logger")
expect(SuitableLogger.warnings).to include("for the suitable logger")
end
it "raises an error if no implementation is suitable" do
expect do
Hiera::FallbackLogger.new(UnsuitableLogger)
end.to raise_error "No suitable logging implementation found."
end
it "issues a warning for each implementation that is not suitable" do
Hiera::FallbackLogger.new(UnsuitableLogger, UnsuitableLogger, SuitableLogger)
expect(SuitableLogger.warnings).to eq([
"Not using UnsuitableLogger. It does not report itself to be suitable.",
"Not using UnsuitableLogger. It does not report itself to be suitable."])
end
# Preserves log messages in memory
# and also serves as a "legacy" logger that has no
# suitable? method
class InMemoryLogger
class << self
attr_accessor :warnings, :debugs
end
def self.reset
self.warnings = []
self.debugs = []
end
def self.warn(message)
self.warnings << message
end
def self.debug(message)
self.debugs << message
end
end
class UnsuitableLogger
def self.suitable?
false
end
end
class SuitableLogger < InMemoryLogger
def self.suitable?
true
end
end
end
Version data entries
46 entries across 46 versions & 1 rubygems