Merge pull request #1790 from iij/pr-float-divmod

fix Float#divmod returns nil

2 files changed, 27 insertions, 0 deletions

diff --git a/test/t/float.rb b/test/t/float.rb
index 0c67f510a..b50b1e175 100644
--- a/test/t/float.rb
+++ b/test/t/float.rb
@@ -144,6 +144,23 @@ assert('Float#truncate', '15.2.9.3.15') do
   assert_equal(-3, -3.1.truncate)
 end
 
+assert('Float#divmod') do
+  def check_floats exp, act
+    assert_float exp[0], act[0]
+    assert_float exp[1], act[1]
+  end
+
+  # Note: quotients are Float because mruby does not have Bignum.
+  check_floats [ 0,  0.0],   0.0.divmod(1)
+  check_floats [ 0,  1.1],   1.1.divmod(3)
+  check_floats [ 3,  0.2],   3.2.divmod(1)
+  check_floats [ 2,  6.3],  20.3.divmod(7)
+  check_floats [-1,  1.6],  -3.4.divmod(5)
+  check_floats [-2, -0.5],  25.5.divmod(-13)
+  check_floats [ 1, -6.6], -13.6.divmod(-7)
+  check_floats [ 3,  0.2],   9.8.divmod(3.2)
+end
+
 assert('Float#nan?') do
   assert_true (0.0/0.0).nan?
   assert_false 0.0.nan?
diff --git a/test/t/integer.rb b/test/t/integer.rb
index 79ee1e790..2bffce5a9 100644
--- a/test/t/integer.rb
+++ b/test/t/integer.rb
@@ -207,6 +207,16 @@ end
 
 # Not ISO specified
 
+assert('Integer#divmod') do
+  assert_equal [ 0,  0],   0.divmod(1)
+  assert_equal [ 0,  1],   1.divmod(3)
+  assert_equal [ 3,  0],   3.divmod(1)
+  assert_equal [ 2,  6],  20.divmod(7)
+  assert_equal [-1,  2],  -3.divmod(5)
+  assert_equal [-2, -1],  25.divmod(-13)
+  assert_equal [ 1, -6], -13.divmod(-7)
+end
+
 assert('Integer#step') do
   a = []
   b = []