大约有 40,000 项符合查询结果（耗时：0.0317秒） [XML]
How can I check that a form field is prefilled correctly using capybara?
...
If you specifically want to test for a placeholder, use:
page.should have_field("some_field_name", placeholder: "Some Placeholder")
or:
expect(page).to have_field("some_field_name", placeholder: "Some Placeholder")
If you want to test the user-ent...
Rails Observer Alternatives for 4.0
...t aren't tightly coupled to the models. This also makes it a lot easier to test in isolation
– Steven Soroka
Mar 28 '14 at 2:03
...
Rotation methods deprecated, equivalent of 'didRotateFromInterfaceOrientation'?
...ct) {
NSLog(@"User has rotated to portrait");
}
}
@end
I was testing on an iPhone in the simulator, but my print statements won't get run if I test using the iPad since the traitsCollection won't change.
This is strange because this is exactly what Apple recommends:
- (void) traitCol...
Can I run multiple versions of Google Chrome on the same machine? (Mac or Windows)
...pt which does the job for you.
Quoted from: section 7 of Cross-browser testing: All major browsers on ONE machine:
Chrome: Stand-alone installers can be downloaded from File Hippo. It is also possible to run multiple Chrome versions
side-by-side.
Although Sandboxie can be used, it'...
“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”
...enerated, but it is not used in the changed row.
See demonstration below, tested with Percona Server 5.5.28. The configuration variable innodb_autoinc_lock_mode=1 (the default):
mysql> create table foo (id serial primary key, u int, unique key (u));
mysql> insert into foo (u) values (10);
m...
Getting an object from an NSSet
...h enumerateObjectsUsingBlock or NSFastEnumeration), call containsObject to test for membership, use anyObject to get a member (not random), or convert it to an array (in no particular order) with allObjects.
A set is appropriate when you don't want duplicates, don't care about order, and want fast ...
How can one use multi threading in PHP applications
...ng in PHP should therefore remain to CLI-based applications only.
Simple Test
#!/usr/bin/php
<?php
class AsyncOperation extends Thread {
public function __construct($arg) {
$this->arg = $arg;
}
public function run() {
if ($this->arg) {
$sleep = m...
Determining 32 vs 64 bit in C++
...if _WIN32 || _WIN64 … #elif __GNUC__ … #else # error "Missing feature-test macro for 32/64-bit on this compiler."?
– Davislor
Nov 29 '15 at 20:24
|
...
Avoiding memory leaks with Scalaz 7 zipWithIndex/group enumeratees
...ck with the older iteratee API, but I recently verified that an equivalent test passes against the scalaz-stream API. This is a newer stream processing API that is intended to replace iteratee.
For completeness, here's the test code:
// create a stream containing `n` arrays with `sz` Ints in each ...
C# DateTime.Now precision
...n into some unexpected behavior with DateTime.UtcNow while doing some unit tests. It appears that when you call DateTime.Now/UtcNow in rapid succession, it seems to give you back the same value for a longer-than-expected interval of time, rather than capturing more precise millisecond increments.
...