1 files changed, 82 insertions, 0 deletions
diff --git a/spec/ruby/library/tempfile/open_spec.rb b/spec/ruby/library/tempfile/open_spec.rb
new file mode 100644
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+++ b/spec/ruby/library/tempfile/open_spec.rb
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+require File.expand_path('../../../spec_helper', __FILE__)
+require 'tempfile'
+
+describe "Tempfile#open" do
+  before :each do
+    @tempfile = Tempfile.new("specs")
+    @tempfile.puts("Test!")
+  end
+
+  after :each do
+    @tempfile.close!
+  end
+
+  it "reopens self" do
+    @tempfile.close
+    @tempfile.open
+    @tempfile.closed?.should be_false
+  end
+
+  it "reopens self in read and write mode and does not truncate" do
+    @tempfile.open
+    @tempfile.puts("Another Test!")
+
+    @tempfile.open
+    @tempfile.readline.should == "Another Test!\n"
+  end
+end
+
+describe "Tempfile.open" do
+  after :each do
+    @tempfile.close! if @tempfile
+  end
+
+  it "returns a new, open Tempfile instance" do
+    @tempfile = Tempfile.open("specs")
+    # Delegation messes up .should be_an_instance_of(Tempfile)
+    @tempfile.instance_of?(Tempfile).should be_true
+  end
+
+  it "is passed an array [base, suffix] as first argument" do
+    Tempfile.open(["specs", ".tt"]) { |tempfile| @tempfile = tempfile }
+    @tempfile.path.should =~ /specs.*\.tt$/
+  end
+end
+
+describe "Tempfile.open when passed a block" do
+  before :each do
+    ScratchPad.clear
+  end
+
+  after :each do
+    # Tempfile.open with block does not unlink
+    @tempfile.close! if @tempfile
+  end
+
+  it "yields a new, open Tempfile instance to the block" do
+    Tempfile.open("specs") do |tempfile|
+      @tempfile = tempfile
+      ScratchPad.record :yielded
+
+      # Delegation messes up .should be_an_instance_of(Tempfile)
+      tempfile.instance_of?(Tempfile).should be_true
+      tempfile.closed?.should be_false
+    end
+
+    ScratchPad.recorded.should == :yielded
+  end
+
+  it "returns the value of the block" do
+    value = Tempfile.open("specs") do |tempfile|
+      @tempfile = tempfile
+      "return"
+    end
+    value.should == "return"
+  end
+
+  it "closes the yielded Tempfile after the block" do
+    Tempfile.open("specs") { |tempfile| @tempfile = tempfile }
+    @tempfile.closed?.should be_true
+  end
+end
+