1 files changed, 38 insertions, 0 deletions
diff --git a/spec/ruby/library/scanf/io/scanf_spec.rb b/spec/ruby/library/scanf/io/scanf_spec.rb
new file mode 100644
index 0000000000..6a1fd66780
--- /dev/null
+++ b/spec/ruby/library/scanf/io/scanf_spec.rb
@@ -0,0 +1,38 @@
+require_relative '../../../spec_helper'
+
+ruby_version_is ''...'2.7' do
+  require_relative 'shared/block_scanf'
+  require 'scanf'
+
+  describe "IO#scanf" do
+    before :each do
+      @hw = File.open(fixture(__FILE__, 'helloworld.txt'), 'r')
+      @data = File.open(fixture(__FILE__, 'date.txt'), 'r')
+    end
+
+    after :each do
+      @hw.close unless @hw.closed?
+      @data.close unless @data.closed?
+    end
+
+    it "returns an array containing the input converted in the specified type" do
+      @hw.scanf("%s%s").should == ["hello", "world"]
+      @data.scanf("%s%d").should == ["Beethoven", 1770]
+    end
+
+    it "returns an array containing the input converted in the specified type with given maximum field width" do
+      @hw.scanf("%2s").should == ["he"]
+      @data.scanf("%2c").should == ["Be"]
+    end
+
+    it "returns an empty array when a wrong specifier is passed" do
+      @hw.scanf("%a").should == []
+      @hw.scanf("%1").should == []
+      @data.scanf("abc").should == []
+    end
+  end
+
+  describe "IO#scanf with block" do
+    it_behaves_like :scanf_io_block_scanf, :scanf
+  end
+end