1 files changed, 65 insertions, 0 deletions
diff --git a/spec/ruby/core/data/initialize_spec.rb b/spec/ruby/core/data/initialize_spec.rb
new file mode 100644
index 0000000000..2c36bd3ac4
--- /dev/null
+++ b/spec/ruby/core/data/initialize_spec.rb
@@ -0,0 +1,65 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+
+ruby_version_is "3.2" do
+  describe "Data#initialize" do
+    it "accepts positional arguments" do
+      data = DataSpecs::Measure.new(42, "km")
+
+      data.amount.should == 42
+      data.unit.should == "km"
+    end
+
+    it "accepts alternative positional arguments" do
+      data = DataSpecs::Measure[42, "km"]
+
+      data.amount.should == 42
+      data.unit.should == "km"
+    end
+
+    it "accepts keyword arguments" do
+      data = DataSpecs::Measure.new(amount: 42, unit: "km")
+
+      data.amount.should == 42
+      data.unit.should == "km"
+    end
+
+    it "accepts alternative keyword arguments" do
+      data = DataSpecs::Measure[amount: 42, unit: "km"]
+
+      data.amount.should == 42
+      data.unit.should == "km"
+    end
+
+    it "accepts String keyword arguments" do
+      data = DataSpecs::Measure.new("amount" => 42, "unit" => "km")
+
+      data.amount.should == 42
+      data.unit.should == "km"
+    end
+
+    it "raises ArgumentError if no arguments are given" do
+      -> {
+        DataSpecs::Measure.new
+      }.should raise_error(ArgumentError) { |e|
+        e.message.should.include?("missing keywords: :amount, :unit")
+      }
+    end
+
+    it "raises ArgumentError if at least one argument is missing" do
+      -> {
+        DataSpecs::Measure.new(unit: "km")
+      }.should raise_error(ArgumentError) { |e|
+        e.message.should.include?("missing keyword: :amount")
+      }
+    end
+
+    it "raises ArgumentError if unknown keyword is given" do
+      -> {
+        DataSpecs::Measure.new(amount: 42, unit: "km", system: "metric")
+      }.should raise_error(ArgumentError) { |e|
+        e.message.should.include?("unknown keyword: :system")
+      }
+    end
+  end
+end