Store random seed

src/spectator/config.cr

@@ -19,6 +19,9 @@ module Spectator
     # Indicates whether tests are run in a random order.
     getter? randomize : Bool
 
+    # Random seed used for number generation.
+    getter! random_seed : UInt64?
+
     # Indicates whether profiling information should be displayed.
     getter? profile : Bool
 
@@ -33,6 +36,7 @@ module Spectator
       @dry_run = builder.dry_run?
       @random = builder.random
       @randomize = builder.randomize?
+      @random_seed = builder.seed?
       @profile = builder.profile?
       @example_filter = builder.example_filter
     end

src/spectator/config_builder.cr

@@ -90,8 +90,12 @@ module Spectator
       @dry_run
     end
 
+    # Seed used for random number generation.
+    getter! seed : UInt64?
+
     # Sets the seed for the random number generator.
     def seed=(seed)
+      @seed = seed
       @random = Random.new(seed)
     end
 

src/spectator/report.cr

@@ -25,12 +25,16 @@ module Spectator
     # This will be greater than zero only in fail-fast mode.
     getter remaining_count
 
+    # Random seed used to determine test ordering.
+    getter! random_seed : UInt64?
+
     # Creates the report.
     # The *results* are from running the examples in the test suite.
     # The *runtime* is the total time it took to execute the suite.
     # The *remaining_count* is the number of tests skipped due to fail-fast.
     # The *fail_blank* flag indicates whether it is a failure if there were no tests run.
-    def initialize(@results : Array(Result), @runtime, @remaining_count = 0, @fail_blank = false)
+    # The *random_seed* is the seed used for random number generation.
+    def initialize(@results : Array(Result), @runtime, @remaining_count = 0, @fail_blank = false, @random_seed = nil)
       @results.each do |result|
         case result
         when SuccessfulResult

src/spectator/runner.cr

@@ -25,7 +25,7 @@ module Spectator
 
       # Generate a report and pass it along to the formatter.
       remaining = @suite.size - results.size
-      report = Report.new(results, elapsed, remaining, @config.fail_blank?)
+      report = Report.new(results, elapsed, remaining, @config.fail_blank?, @config.random_seed?)
       @config.each_formatter(&.end_suite(report, profile(report)))
 
       !report.failed?