From 39f275edf7284ef0c0f9b9391038ae9f2c019731 Mon Sep 17 00:00:00 2001
From: Kouhei Sutou <kou@clear-code.com>
Date: Sat, 25 May 2019 18:25:37 +0900
Subject: [ruby/rexml] xpath number: fix a bug that false is converted to NaN

GitHub: fix #18

It must be 0.

Reported by Mirko Budszuhn. Thanks!!!

https://github.com/ruby/rexml/commit/b48f3afa3b
---
 test/rexml/functions/test_number.rb | 53 ++++++++++++++++++++-----------------
 1 file changed, 28 insertions(+), 25 deletions(-)

(limited to 'test/rexml')

diff --git a/test/rexml/functions/test_number.rb b/test/rexml/functions/test_number.rb
index 84ec5c7ba7..16e635701c 100644
--- a/test/rexml/functions/test_number.rb
+++ b/test/rexml/functions/test_number.rb
@@ -1,35 +1,38 @@
 # frozen_string_literal: false
-require 'rexml/document'
-require 'test/unit'
-require 'rexml/functions'
+
+require "test/unit"
+require "rexml/document"
+require "rexml/functions"
 
 module REXMLTests
-  class TC_Rexml_Functions_Number < Test::Unit::TestCase
+  class TestFunctionsNumber < Test::Unit::TestCase
+    def setup
+      REXML::Functions.context = nil
+    end
 
-    def test_functions_number_int
-      telem = REXML::Element.new("elem")
-      telem.text="9"
-      assert_equal(9, REXML::Functions::number(telem))
+    def test_true
+      assert_equal(1, REXML::Functions.number(true))
     end
-    def test_functions_number_float
-      telem = REXML::Element.new("elem")
-      telem.text="10.4"
-      assert_equal(10.4, REXML::Functions::number(telem))
+
+    def test_false
+      assert_equal(0, REXML::Functions.number(false))
     end
-    def test_functions_number_negative_int
-      telem = REXML::Element.new("elem")
-      telem.text="-9"
-      assert_equal(-9, REXML::Functions::number(telem))
+
+    def test_numeric
+      assert_equal(29, REXML::Functions.number(29))
     end
-    def test_functions_number_negative_float
-      telem = REXML::Element.new("elem")
-      telem.text="-9.13"
-      assert_equal(-9.13, REXML::Functions::number(telem))
+
+    def test_string_integer
+      assert_equal(100, REXML::Functions.number("100"))
+    end
+
+    def test_string_float
+      assert_equal(-9.13, REXML::Functions.number("-9.13"))
+    end
+
+    def test_node_set
+      root = REXML::Document.new("<root>100</root>").root
+      assert_equal(100, REXML::Functions.number([root]))
     end
-    #def test_functions_number_scientific_notation
-    #  telem = REXML::Element.new("elem")
-    #  telem.text="9.13E12"
-    #  assert_equal(9.13E12, REXML::Functions::number(telem))
-    #end
   end
 end
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