test: Misc logs fixes (#1697)

* test: Add LogRecordProcessor tests

* test: Update observed_timestamp LogRecord test

Tests for timestamp were updated to use Time objects, but
observed_timestamp was not. Now, they both evaluate Time.
They are turned into floats when
converted to LogRecordData.

* test: Exclude test directory from SimpleCov

* style: Misc docs/spacing updates

* test: Skip flaky JRuby test with link to fix issue

---------

Co-authored-by: Matthew Wear <matthew.wear@gmail.com>

logs_api/test/opentelemetry/logs/logger_test.rb

@@ -9,7 +9,7 @@
 describe OpenTelemetry::Logs::Logger do
   let(:logger) { OpenTelemetry::Logs::Logger.new }
 
-  describe '#emit' do
+  describe '#on_emit' do
     it 'returns nil, as it is a no-op method' do
       assert_nil(logger.on_emit)
     end

logs_api/test/test_helper.rb

@@ -5,7 +5,12 @@
 # SPDX-License-Identifier: Apache-2.0
 
 require 'simplecov'
-SimpleCov.start { enable_coverage :branch }
+
+SimpleCov.start do
+  enable_coverage :branch
+  add_filter '/test/'
+end
+
 SimpleCov.minimum_coverage 85
 
 require 'opentelemetry-logs-api'

logs_sdk/lib/opentelemetry/sdk/logs/log_record_data.rb

@@ -13,7 +13,7 @@ module Logs
                                  :severity_text,             # optional String
                                  :severity_number,           # optional Integer
                                  :body,                      # optional String, Numeric, Boolean, Array<String, Numeric, Boolean>, Hash{String => String, Numeric, Boolean, Array<String, Numeric, Boolean>}
-                                 :attributes, # optional Hash{String => String, Numeric, Boolean, Array<String, Numeric, Boolean>}
+                                 :attributes,                # optional Hash{String => String, Numeric, Boolean, Array<String, Numeric, Boolean>}
                                  :trace_id,                  # optional String (16-byte binary)
                                  :span_id,                   # optional String (8-byte binary)
                                  :trace_flags,               # optional Integer (8-bit byte of bit flags)

logs_sdk/lib/opentelemetry/sdk/logs/log_record_processor.rb

@@ -26,7 +26,7 @@ def on_emit(log_record, context); end
         # the process after an invocation, but before the `Processor` exports
         # the completed spans.
         #
-        # @param [Numeric] timeout An optional timeout in seconds.
+        # @param [optional Numeric] timeout An optional timeout in seconds.
         # @return [Integer] Export::SUCCESS if no error occurred, Export::FAILURE if
         #   a non-specific failure occurred, Export::TIMEOUT if a timeout occurred.
         def force_flush(timeout: nil)
@@ -35,7 +35,7 @@ def force_flush(timeout: nil)
 
         # Called when {LoggerProvider#shutdown} is called.
         #
-        # @param [Numeric] timeout An optional timeout in seconds.
+        # @param [optional Numeric] timeout An optional timeout in seconds.
         # @return [Integer] Export::SUCCESS if no error occurred, Export::FAILURE if
         #   a non-specific failure occurred, Export::TIMEOUT if a timeout occurred.
         def shutdown(timeout: nil)

logs_sdk/lib/opentelemetry/sdk/logs/logger.rb

@@ -34,6 +34,8 @@ def initialize(name, version, logger_provider)
         # @param [optional OpenTelemetry::Trace::SpanContext] span_context The
         #   OpenTelemetry::Trace::SpanContext to associate with the
         #   {LogRecord}.
+        # @param [optional String] severity_text Original string representation of
+        #   the severity as it is known at the source. Also known as log level.
         # @param severity_number [optional Integer] Numerical value of the
         #   severity. Smaller numerical values correspond to less severe events
         #   (such as debug events), larger numerical values correspond to more

logs_sdk/test/opentelemetry/sdk/logs/export/batch_log_record_processor_test.rb

@@ -204,6 +204,10 @@ def to_log_record_data
     end
 
     it 'logs a warning if a log record was emitted after the buffer is full' do
+      # This will be fixed as part of Issue #1701
+      # https://github.com/open-telemetry/opentelemetry-ruby/issues/1701
+      skip if RUBY_ENGINE == 'jruby'
+
       mock_otel_logger = Minitest::Mock.new
       mock_otel_logger.expect(:warn, nil, ['1 log record(s) dropped. Reason: buffer-full'])
 

logs_sdk/test/opentelemetry/sdk/logs/log_record_processor_test.rb

@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+# Copyright The OpenTelemetry Authors
+#
+# SPDX-License-Identifier: Apache-2.0
+
+require 'test_helper'
+
+describe OpenTelemetry::SDK::Logs::LogRecordProcessor do
+  let(:processor)  { OpenTelemetry::SDK::Logs::LogRecordProcessor.new }
+  let(:log_record) { nil }
+  let(:context)    { nil }
+
+  it 'implements #on_emit' do
+    processor.on_emit(log_record, context)
+  end
+
+  it 'implements #force_flush' do
+    processor.force_flush
+  end
+
+  it 'returns a success code when #force_flush is called' do
+    assert(OpenTelemetry::SDK::Logs::Export::SUCCESS, processor.force_flush)
+  end
+
+  it 'implements #shutdown' do
+    processor.shutdown
+  end
+
+  it 'returns a success code when #shutdown is called' do
+    assert(OpenTelemetry::SDK::Logs::Export::SUCCESS, processor.shutdown)
+  end
+end

logs_sdk/test/opentelemetry/sdk/logs/log_record_test.rb

@@ -15,7 +15,8 @@
   describe '#initialize' do
     describe 'observed_timestamp' do
       describe 'when observed_timestamp is present' do
-        let(:observed_timestamp) { '1692661486.2841358' }
+        let(:current_time) { Time.now }
+        let(:observed_timestamp) { current_time + 1 }
         let(:args) { { observed_timestamp: observed_timestamp } }
 
         it 'is equal to observed_timestamp' do
@@ -26,13 +27,8 @@
           refute_equal(log_record.timestamp, log_record.observed_timestamp)
         end
 
-        # Process.clock_gettime is used to set the current time
-        # That method returns a Float. Since the stubbed value of
-        # observed_timestamp is a String, we can know the the
-        # observed_timestamp was not set to the value of Process.clock_gettime
-        # by making sure its value is not a Float.
         it 'is not equal to the current time' do
-          refute_instance_of(Float, log_record.observed_timestamp)
+          refute_equal(current_time, log_record.observed_timestamp)
         end
       end
 

logs_sdk/test/test_helper.rb

@@ -5,7 +5,12 @@
 # SPDX-License-Identifier: Apache-2.0
 
 require 'simplecov'
-SimpleCov.start { enable_coverage :branch }
+
+SimpleCov.start do
+  enable_coverage :branch
+  add_filter '/test/'
+end
+
 SimpleCov.minimum_coverage 85
 
 require 'opentelemetry-logs-api'