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体验新版 GitCode,发现更多精彩内容 >>
提交
396f9df8
编写于
7月 16, 2008
作者:
J
Josh Owens
提交者:
Joshua Peek
7月 16, 2008
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电子邮件补丁
差异文件
Hash#slice supports an array of keys [#613 state:resolved]
Signed-off-by:
N
Joshua Peek
<
josh@joshpeek.com
>
上级
7ae2105d
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
36 addition
and
21 deletion
+36
-21
activesupport/lib/active_support/core_ext/hash/slice.rb
activesupport/lib/active_support/core_ext/hash/slice.rb
+1
-0
activesupport/test/core_ext/hash_ext_test.rb
activesupport/test/core_ext/hash_ext_test.rb
+35
-21
未找到文件。
activesupport/lib/active_support/core_ext/hash/slice.rb
浏览文件 @
396f9df8
...
...
@@ -12,6 +12,7 @@ module Hash #:nodoc:
module
Slice
# Returns a new hash with only the given keys.
def
slice
(
*
keys
)
keys
.
flatten!
keys
=
keys
.
map!
{
|
key
|
convert_key
(
key
)
}
if
respond_to?
(
:convert_key
)
hash
=
{}
keys
.
each
{
|
k
|
hash
[
k
]
=
self
[
k
]
if
has_key?
(
k
)
}
...
...
activesupport/test/core_ext/hash_ext_test.rb
浏览文件 @
396f9df8
...
...
@@ -282,6 +282,20 @@ def test_slice
assert_equal
expected
,
original
end
# This is needed for something like hash.slice!(hash.keys.sort_by {rand} [0..4])
def
test_slice_with_array_keys
original
=
{
:a
=>
'x'
,
:b
=>
'y'
,
:c
=>
10
}
expected
=
{
:a
=>
'x'
,
:b
=>
'y'
}
# Should return a new hash with only the given keys, when given an array of keys.
assert_equal
expected
,
original
.
slice
([
:a
,
:b
])
assert_not_equal
expected
,
original
# Should replace the hash with only the given keys, when given an array of keys.
assert_equal
expected
,
original
.
slice!
([
:a
,
:b
])
assert_equal
expected
,
original
end
def
test_indifferent_slice
original
=
{
:a
=>
'x'
,
:b
=>
'y'
,
:c
=>
10
}.
with_indifferent_access
expected
=
{
:a
=>
'x'
,
:b
=>
'y'
}.
with_indifferent_access
...
...
@@ -469,12 +483,12 @@ def test_single_record_from_xml_with_nil_values
EOT
expected_topic_hash
=
{
:title
=>
nil
,
:title
=>
nil
,
:id
=>
nil
,
:approved
=>
nil
,
:written_on
=>
nil
,
:viewed_at
=>
nil
,
:content
=>
nil
,
:content
=>
nil
,
:parent_id
=>
nil
}.
stringify_keys
...
...
@@ -552,7 +566,7 @@ def test_single_record_from_xml_with_attributes_other_than_type
assert_equal
expected_topic_hash
,
Hash
.
from_xml
(
topic_xml
)[
"rsp"
][
"photos"
][
"photo"
]
end
def
test_empty_array_from_xml
blog_xml
=
<<-
XML
<blog>
...
...
@@ -650,13 +664,13 @@ def test_xsd_like_types_from_xml
assert_equal
expected_bacon_hash
,
Hash
.
from_xml
(
bacon_xml
)[
"bacon"
]
end
def
test_type_trickles_through_when_unknown
product_xml
=
<<-
EOT
<product>
<weight type="double">0.5</weight>
<image type="ProductImage"><filename>image.gif</filename></image>
</product>
EOT
...
...
@@ -665,7 +679,7 @@ def test_type_trickles_through_when_unknown
:image
=>
{
'type'
=>
'ProductImage'
,
'filename'
=>
'image.gif'
},
}.
stringify_keys
assert_equal
expected_product_hash
,
Hash
.
from_xml
(
product_xml
)[
"product"
]
assert_equal
expected_product_hash
,
Hash
.
from_xml
(
product_xml
)[
"product"
]
end
def
test_should_use_default_value_for_unknown_key
...
...
@@ -699,41 +713,41 @@ def test_kernel_method_names_to_xml
assert_equal
expected
,
hash
.
to_xml
(
@xml_options
)
end
end
def
test_empty_string_works_for_typecast_xml_value
def
test_empty_string_works_for_typecast_xml_value
assert_nothing_raised
do
Hash
.
send!
(
:typecast_xml_value
,
""
)
end
end
def
test_escaping_to_xml
hash
=
{
:bare_string
=>
'First & Last Name'
,
hash
=
{
:bare_string
=>
'First & Last Name'
,
:pre_escaped_string
=>
'First & Last Name'
}.
stringify_keys
expected_xml
=
'<person><bare-string>First & Last Name</bare-string><pre-escaped-string>First &amp; Last Name</pre-escaped-string></person>'
assert_equal
expected_xml
,
hash
.
to_xml
(
@xml_options
)
end
def
test_unescaping_from_xml
xml_string
=
'<person><bare-string>First & Last Name</bare-string><pre-escaped-string>First &amp; Last Name</pre-escaped-string></person>'
expected_hash
=
{
:bare_string
=>
'First & Last Name'
,
expected_hash
=
{
:bare_string
=>
'First & Last Name'
,
:pre_escaped_string
=>
'First & Last Name'
}.
stringify_keys
assert_equal
expected_hash
,
Hash
.
from_xml
(
xml_string
)[
'person'
]
end
def
test_roundtrip_to_xml_from_xml
hash
=
{
:bare_string
=>
'First & Last Name'
,
hash
=
{
:bare_string
=>
'First & Last Name'
,
:pre_escaped_string
=>
'First & Last Name'
}.
stringify_keys
assert_equal
hash
,
Hash
.
from_xml
(
hash
.
to_xml
(
@xml_options
))[
'person'
]
end
def
test_datetime_xml_type_with_utc_time
alert_xml
=
<<-
XML
<alert>
...
...
@@ -744,7 +758,7 @@ def test_datetime_xml_type_with_utc_time
assert
alert_at
.
utc?
assert_equal
Time
.
utc
(
2008
,
2
,
10
,
15
,
30
,
45
),
alert_at
end
def
test_datetime_xml_type_with_non_utc_time
alert_xml
=
<<-
XML
<alert>
...
...
@@ -755,7 +769,7 @@ def test_datetime_xml_type_with_non_utc_time
assert
alert_at
.
utc?
assert_equal
Time
.
utc
(
2008
,
2
,
10
,
15
,
30
,
45
),
alert_at
end
def
test_datetime_xml_type_with_far_future_date
alert_xml
=
<<-
XML
<alert>
...
...
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