Fix for crystal version 0.24.1

spec/elapsed_time_spec.cr

@@ -3,7 +3,7 @@ require "../src/elapsed_time"
 
 module Spec2
   Spec2.describe ElapsedTime do
-    let(started_at) { Time.new(2014, 4, 21, 13, 27, 33, 57) }
+    let(started_at) { Time.new(2014, 4, 21, 13, 27, 33) + 57.milliseconds }
 
     describe "#to_s" do
       context "when seconds < 1" do
@@ -21,25 +21,33 @@ module Spec2
           ).to_s).to eq("999.0 milliseconds")
         end
 
+        def to_milliseconds(ms)
+          {% if Crystal::VERSION =~ /\A0\.(2[0-3]|[01][0-9])\./ %} # < 0.24
+            Time::Span.new(ms * 10_000)
+          {% else %}
+            ms.milliseconds
+          {% end %}
+        end
+
         it "returns in milliseconds rounded to .2" do
           expect(ElapsedTime.new(
             started_at,
-            started_at + Time::Span.new(36 * 10000)
+            started_at + to_milliseconds(36)
           ).to_s).to eq("36.0 milliseconds")
 
           expect(ElapsedTime.new(
             started_at,
-            started_at + Time::Span.new(36.5 * 10000)
+            started_at + to_milliseconds(36.5)
           ).to_s).to eq("36.5 milliseconds")
 
           expect(ElapsedTime.new(
             started_at,
-            started_at + Time::Span.new(36.57 * 10000)
+            started_at + to_milliseconds(36.57)
           ).to_s).to eq("36.57 milliseconds")
 
           expect(ElapsedTime.new(
             started_at,
-            started_at + Time::Span.new(36.573 * 10000)
+            started_at + to_milliseconds(36.573)
           ).to_s).to eq("36.57 milliseconds")
         end
       end

spec/matchers_spec.cr

@@ -339,7 +339,7 @@ Spec2.describe Spec2::Matchers do
           expect(42.05).to be_close(42, 0.01)
         }.to raise_error(
           Spec2::ExpectationNotMet,
-          "Expected to be close:\n        Expected:  42\n        Actual:    42.05\n        Max-delta: 0.01\n        Delta:     0.049999999999997158"
+          match(/Expected to be close:\n        Expected:  42\n        Actual:    42.05\n        Max-delta: 0.01\n        Delta:     0.049999999999997\d+/)
         )
       end
     end
@@ -522,7 +522,7 @@ Spec2.describe Spec2::Matchers do
     end
   end
 
-  describe (2 + 2) do
+  describe 2 + 2 do
     context "when describe uses literal expression" do
       it "fails" do
         expect {

unit_spec/simple_dsl_spec.cr

@@ -465,7 +465,7 @@ module SimpleDSLSpec
     example = ::Spec2::Context.contexts[0].examples[0]
 
     it "still gets executed" do
-      expect_raises do
+      expect_raises(Exception) do
         example.run
       end