Improve Hash Tests

test/t/hash.rb

@@ -2,36 +2,36 @@
 # Hash ISO Test
 
 assert('Hash', '15.2.13') do
-  Hash.class == Class
+  assert_equal Hash.class, Class
 end
 
 assert('Hash superclass', '15.2.13.2') do
-  Hash.superclass == Object
+  assert_equal Hash.superclass, Object
 end
 
 assert('Hash#==', '15.2.13.4.1') do
-  ({ 'abc' => 'abc' } ==  { 'abc' => 'abc' }) and
-    not ({ 'abc' => 'abc' } ==  { 'cba' => 'cba' })
+  assert_true({ 'abc' => 'abc' } == { 'abc' => 'abc' })
+  assert_false({ 'abc' => 'abc' } ==  { 'cba' => 'cba' })
 end
 
 assert('Hash#[]', '15.2.13.4.2') do
   a = { 'abc' => 'abc' }
 
-  a['abc'] == 'abc'
+  assert_equal a['abc'], 'abc'
 end
 
 assert('Hash#[]=', '15.2.13.4.3') do
   a = Hash.new
   a['abc'] = 'abc'
 
-  a['abc'] == 'abc'
+  assert_equal a['abc'], 'abc'
 end
 
 assert('Hash#clear', '15.2.13.4.4') do
   a = { 'abc' => 'abc' }
   a.clear
 
-  a == { }
+  assert_equal a, { }
 end
 
 assert('Hash#default', '15.2.13.4.5') do
@@ -39,15 +39,18 @@ assert('Hash#default', '15.2.13.4.5') do
   b = Hash.new('abc')
   c = Hash.new {|s,k| s[k] = k}
 
-  a.default == nil and b.default == 'abc' and
-    c.default == nil and c.default('abc') == 'abc'
+  assert_nil a.default
+  assert_equal b.default, 'abc'
+  assert_nil c.default
+  assert_equal c.default('abc'), 'abc'
 end
 
 assert('Hash#default=', '15.2.13.4.6') do
   a = { 'abc' => 'abc' }
   a.default = 'cba'
 
-  a['abc'] == 'abc' and a['notexist'] == 'cba'
+  assert_equal a['abc'], 'abc'
+  assert_equal a['notexist'], 'cba'
 end
 
 assert('Hash#default_proc', '15.2.13.4.7') do
@@ -56,8 +59,10 @@ assert('Hash#default_proc', '15.2.13.4.7') do
   c = b[2]
   d = b['cat']
 
-  a.default_proc == nil and b.default_proc.class == Proc and
-  c = 4 and d = 'catcat'
+  assert_nil a.default_proc
+  assert_equal b.default_proc.class, Proc
+  assert_equal c, 4
+  assert_equal d, 'catcat'
 end
 
 assert('Hash#delete', '15.2.13.4.8') do
@@ -74,8 +79,10 @@ assert('Hash#delete', '15.2.13.4.8') do
     b_tmp_2 = true
   end
 
-  a.delete('cba') == nil and not a.has_key?('abc') and
-    not b_tmp_1 and b_tmp_2
+  assert_nil a.delete('cba')
+  assert_false a.has_key?('abc')
+  assert_false b_tmp_1
+  assert_true b_tmp_2
 end
 
 assert('Hash#each', '15.2.13.4.9') do
@@ -88,7 +95,8 @@ assert('Hash#each', '15.2.13.4.9') do
     value = v
   end
 
-  key == 'abc_key' and value == 'abc_value'
+  assert_equal key, 'abc_key'
+  assert_equal value, 'abc_value'
 end
 
 assert('Hash#each_key', '15.2.13.4.10') do
@@ -99,7 +107,7 @@ assert('Hash#each_key', '15.2.13.4.10') do
     key = k
   end
 
-  key == 'abc_key'
+  assert_equal key, 'abc_key'
 end
 
 assert('Hash#each_value', '15.2.13.4.11') do
@@ -110,35 +118,39 @@ assert('Hash#each_value', '15.2.13.4.11') do
     value = v
   end
 
-  value == 'abc_value'
+  assert_equal value, 'abc_value'
 end
 
 assert('Hash#empty?', '15.2.13.4.12') do
   a = { 'abc_key' => 'abc_value' }
   b = Hash.new
 
-  not a.empty? and b.empty?
+  assert_false a.empty?
+  assert_true b.empty?
 end
 
 assert('Hash#has_key?', '15.2.13.4.13') do
   a = { 'abc_key' => 'abc_value' }
   b = Hash.new
 
-  a.has_key?('abc_key') and not b.has_key?('cba')
+  assert_true a.has_key?('abc_key')
+  assert_false b.has_key?('cba')
 end
 
 assert('Hash#has_value?', '15.2.13.4.14') do
   a = { 'abc_key' => 'abc_value' }
   b = Hash.new
 
-  a.has_value?('abc_value') and not b.has_value?('cba')
+  assert_true a.has_value?('abc_value')
+  assert_false b.has_value?('cba')
 end
 
 assert('Hash#include?', '15.2.13.4.15') do
   a = { 'abc_key' => 'abc_value' }
   b = Hash.new
 
-  a.include?('abc_key') and not b.include?('cba')
+  assert_true a.include?('abc_key')
+  assert_false b.include?('cba')
 end
 
 assert('Hash#initialize', '15.2.13.4.16') do
@@ -146,44 +158,47 @@ assert('Hash#initialize', '15.2.13.4.16') do
   h = Hash.new
   h2 = Hash.new(:not_found)
 
-  h.is_a? Hash and
-  h == { } and
-  h["hello"] == nil and
-  h2["hello"] == :not_found
+  assert_true h.is_a? Hash
+  assert_equal h, { }
+  assert_nil h["hello"]
+  assert_equal h2["hello"], :not_found
 end
 
 assert('Hash#initialize_copy', '15.2.13.4.17') do
   a = { 'abc_key' => 'abc_value' }
   b = Hash.new.initialize_copy(a)
 
-  b == { 'abc_key' => 'abc_value' }
+  assert_equal b, { 'abc_key' => 'abc_value' }
 end
 
 assert('Hash#key?', '15.2.13.4.18') do
   a = { 'abc_key' => 'abc_value' }
   b = Hash.new
 
-  a.key?('abc_key') and not b.key?('cba')
+  assert_true a.key?('abc_key')
+  assert_false b.key?('cba')
 end
 
 assert('Hash#keys', '15.2.13.4.19') do
   a = { 'abc_key' => 'abc_value' }
 
-  a.keys == ['abc_key']
+  assert_equal a.keys, ['abc_key']
 end
 
 assert('Hash#length', '15.2.13.4.20') do
   a = { 'abc_key' => 'abc_value' }
   b = Hash.new
 
-  a.length == 1 and b.length == 0
+  assert_equal a.length, 1
+  assert_equal b.length, 0
 end
 
 assert('Hash#member?', '15.2.13.4.21') do
   a = { 'abc_key' => 'abc_value' }
   b = Hash.new
 
-  a.member?('abc_key') and not b.member?('cba')
+  assert_true a.member?('abc_key')
+  assert_false b.member?('cba')
 end
 
 assert('Hash#merge', '15.2.13.4.22') do
@@ -195,9 +210,9 @@ assert('Hash#merge', '15.2.13.4.22') do
     original
   end
 
-  result_1 == {'abc_key' => 'abc_value', 'cba_key' => 'XXX',
-               'xyz_key' => 'xyz_value' } and
-  result_2 == {'abc_key' => 'abc_value', 'cba_key' => 'cba_value',
+  assert_equal result_1, {'abc_key' => 'abc_value', 'cba_key' => 'XXX',
+               'xyz_key' => 'xyz_value' }
+  assert_equal result_2, {'abc_key' => 'abc_value', 'cba_key' => 'cba_value',
                'xyz_key' => 'xyz_value' }
 end
 
@@ -205,42 +220,44 @@ assert('Hash#replace', '15.2.13.4.23') do
   a = { 'abc_key' => 'abc_value' }
   b = Hash.new.replace(a)
 
-  b == { 'abc_key' => 'abc_value' }
+  assert_equal b, { 'abc_key' => 'abc_value' }
 end
 
 assert('Hash#shift', '15.2.13.4.24') do
   a = { 'abc_key' => 'abc_value', 'cba_key' => 'cba_value' }
   b = a.shift
 
-  a == { 'abc_key' => 'abc_value' } and
-    b == [ 'cba_key', 'cba_value' ]
+  assert_equal a, { 'abc_key' => 'abc_value' }
+  assert_equal b, [ 'cba_key', 'cba_value' ]
 end
 
 assert('Hash#size', '15.2.13.4.25') do
   a = { 'abc_key' => 'abc_value' }
   b = Hash.new
 
-  a.size == 1 and b.size == 0
+  assert_equal a.size, 1
+  assert_equal b.size, 0
 end
 
 assert('Hash#store', '15.2.13.4.26') do
   a = Hash.new
   a.store('abc', 'abc')
 
-  a['abc'] == 'abc'
+  assert_equal a['abc'], 'abc'
 end
 
 assert('Hash#value?', '15.2.13.4.27') do
   a = { 'abc_key' => 'abc_value' }
   b = Hash.new
 
-  a.value?('abc_value') and not b.value?('cba')
+  assert_true a.value?('abc_value')
+  assert_false b.value?('cba')
 end
 
 assert('Hash#values', '15.2.13.4.28') do
   a = { 'abc_key' => 'abc_value' }
 
-  a.values == ['abc_value']
+  assert_equal a.values, ['abc_value']
 end
 
 # Not ISO specified
@@ -250,8 +267,8 @@ assert('Hash#reject') do
   ret = h.reject do |k,v|
     v % 2 == 0
   end
-  ret == {:one => 1, :three => 3} and
-    h == {:one => 1, :two => 2, :three => 3, :four => 4}
+  assert_equal ret, {:one => 1, :three => 3}
+  assert_equal h, {:one => 1, :two => 2, :three => 3, :four => 4}
 end
 
 assert('Hash#reject!') do
@@ -259,8 +276,8 @@ assert('Hash#reject!') do
   ret = h.reject! do |k,v|
     v % 2 == 0
   end
-  ret == {:one => 1, :three => 3} and
-    h == {:one => 1, :three => 3}
+  assert_equal ret, {:one => 1, :three => 3}
+  assert_equal h, {:one => 1, :three => 3}
 end
 
 assert('Hash#select') do
@@ -268,8 +285,8 @@ assert('Hash#select') do
   ret = h.select do |k,v|
     v % 2 == 0
   end
-  ret == {:two => 2, :four => 4} and
-    h == {:one => 1, :two => 2, :three => 3, :four => 4}
+  assert_equal ret, {:two => 2, :four => 4}
+  assert_equal h, {:one => 1, :two => 2, :three => 3, :four => 4}
 end
 
 assert('Hash#select!') do
@@ -277,8 +294,8 @@ assert('Hash#select!') do
   ret = h.select! do |k,v|
     v % 2 == 0
   end
-  ret == {:two => 2, :four => 4} and
-    h == {:two => 2, :four => 4}
+  assert_equal ret, {:two => 2, :four => 4}
+  assert_equal h, {:two => 2, :four => 4}
 end
 
 # Not ISO specified
@@ -287,5 +304,7 @@ assert('Hash#inspect') do
   h = { "c" => 300, "a" => 100, "d" => 400, "c" => 300  }
   ret = h.to_s
 
-  ret = "{\"c\"=>300, \"a\"=>100, \"d\"=>400}"
+  assert_include ret, '"c"=>300'
+  assert_include ret, '"a"=>100'
+  assert_include ret, '"d"=>400'
 end