diff options
| -rw-r--r-- | mrbgems/mruby-hash-ext/mrblib/hash.rb | 96 | ||||
| -rw-r--r-- | mrbgems/mruby-hash-ext/test/hash.rb | 72 |
2 files changed, 168 insertions, 0 deletions
diff --git a/mrbgems/mruby-hash-ext/mrblib/hash.rb b/mrbgems/mruby-hash-ext/mrblib/hash.rb index d243aec24..f72cb54e8 100644 --- a/mrbgems/mruby-hash-ext/mrblib/hash.rb +++ b/mrbgems/mruby-hash-ext/mrblib/hash.rb @@ -250,4 +250,100 @@ class Hash def to_h self end + + ## + # call-seq: + # hash < other -> true or false + # + # Returns <code>true</code> if <i>hash</i> is subset of + # <i>other</i>. + # + # h1 = {a:1, b:2} + # h2 = {a:1, b:2, c:3} + # h1 < h2 #=> true + # h2 < h1 #=> false + # h1 < h1 #=> false + # + def <(hash) + begin + hash = hash.to_hash + rescue NoMethodError + raise TypeError, "can't convert #{hash.class} to Hash" + end + size < hash.size and all? {|key, val| + hash.key?(key) and hash[key] == val + } + end + + ## + # call-seq: + # hash <= other -> true or false + # + # Returns <code>true</code> if <i>hash</i> is subset of + # <i>other</i> or equals to <i>other</i>. + # + # h1 = {a:1, b:2} + # h2 = {a:1, b:2, c:3} + # h1 <= h2 #=> true + # h2 <= h1 #=> false + # h1 <= h1 #=> true + # + def <=(hash) + begin + hash = hash.to_hash + rescue NoMethodError + raise TypeError, "can't convert #{hash.class} to Hash" + end + size <= hash.size and all? {|key, val| + hash.key?(key) and hash[key] == val + } + end + + ## + # call-seq: + # hash > other -> true or false + # + # Returns <code>true</code> if <i>other</i> is subset of + # <i>hash</i>. + # + # h1 = {a:1, b:2} + # h2 = {a:1, b:2, c:3} + # h1 > h2 #=> false + # h2 > h1 #=> true + # h1 > h1 #=> false + # + def >(hash) + begin + hash = hash.to_hash + rescue NoMethodError + raise TypeError, "can't convert #{hash.class} to Hash" + end + size > hash.size and hash.all? {|key, val| + key?(key) and self[key] == val + } + end + + ## + # call-seq: + # hash >= other -> true or false + # + # Returns <code>true</code> if <i>other</i> is subset of + # <i>hash</i> or equals to <i>hash</i>. + # + # h1 = {a:1, b:2} + # h2 = {a:1, b:2, c:3} + # h1 >= h2 #=> false + # h2 >= h1 #=> true + # h1 >= h1 #=> true + # + def >=(hash) + begin + hash = hash.to_hash + rescue NoMethodError + raise TypeError, "can't convert #{hash.class} to Hash" + end + size >= hash.size and hash.all? {|key, val| + key?(key) and self[key] == val + } + end end diff --git a/mrbgems/mruby-hash-ext/test/hash.rb b/mrbgems/mruby-hash-ext/test/hash.rb index 01a9c5622..4a2251b6c 100644 --- a/mrbgems/mruby-hash-ext/test/hash.rb +++ b/mrbgems/mruby-hash-ext/test/hash.rb @@ -158,3 +158,75 @@ assert("Hash#to_h") do assert_equal Hash, h.to_h.class assert_equal h, h.to_h end + +assert('Hash#<') do + h1 = {a:1, b:2} + h2 = {a:1, b:2, c:3} + + assert_false(h1 < h1) + assert_true(h1 < h2) + assert_false(h2 < h1) + assert_false(h2 < h2) + + h1 = {a:1} + h2 = {a:2} + + assert_false(h1 < h1) + assert_false(h1 < h2) + assert_false(h2 < h1) + assert_false(h2 < h2) +end + +assert('Hash#<=') do + h1 = {a:1, b:2} + h2 = {a:1, b:2, c:3} + + assert_true(h1 <= h1) + assert_true(h1 <= h2) + assert_false(h2 <= h1) + assert_true(h2 <= h2) + + h1 = {a:1} + h2 = {a:2} + + assert_true(h1 <= h1) + assert_false(h1 <= h2) + assert_false(h2 <= h1) + assert_true(h2 <= h2) +end + +assert('Hash#>=') do + h1 = {a:1, b:2} + h2 = {a:1, b:2, c:3} + + assert_true(h1 >= h1) + assert_false(h1 >= h2) + assert_true(h2 >= h1) + assert_true(h2 >= h2) + + h1 = {a:1} + h2 = {a:2} + + assert_true(h1 >= h1) + assert_false(h1 >= h2) + assert_false(h2 >= h1) + assert_true(h2 >= h2) +end + +assert('Hash#>') do + h1 = {a:1, b:2} + h2 = {a:1, b:2, c:3} + + assert_false(h1 > h1) + assert_false(h1 > h2) + assert_true(h2 > h1) + assert_false(h2 > h2) + + h1 = {a:1} + h2 = {a:2} + + assert_false(h1 > h1) + assert_false(h1 > h2) + assert_false(h2 > h1) + assert_false(h2 > h2) +end |