假设我有一个包含20个测试的大规格文件，因为我正在测试一个大型模型而我无其他方法：
describe Blah
it "should do X" do ... end
it "should do Y" do ... end
...
it "should do Z" do ... end
end
运行单个文件比运行整个测试套件要快，但它仍然很长。有没有办法运行最后一个（即文件末尾的那个，这里“应该做Z”）？
如果这不可能，有没有办法指定我想在我的文件中运行哪个测试？
答案 0 :(得分：5)
规范可以按文件或按定义运行。
Usage: spec (FILE(:LINE)?|DIRECTORY|GLOB)+ [options]
实际上，它可能是这样的。在此规范文件中运行定义（标识最后一行的行）。
spec spec/models/customer_spec.rb:25
可以通过rails根目录中的'spec'检查完整语法。
Usage: spec (FILE(:LINE)?|DIRECTORY|GLOB)+ [options]
-p, --pattern [PATTERN] Limit files loaded to those matching this pattern. Defaults to '**/*_spec.rb'
Separate multiple patterns with commas.
Applies only to directories named on the command line (files
named explicitly on the command line will be loaded regardless).
-D, --diff [FORMAT] Show diff of objects that are expected to be equal when they are not
Builtin formats: unified|u|context|c
You can also specify a custom differ class
(in which case you should also specify --require)
-c, --colour, --color Show coloured (red/green) output
-e, --example [NAME|FILE_NAME] Execute example(s) with matching name(s). If the argument is
the path to an existing file (typically generated by a previous
run using --format failing_examples:file.txt), then the examples
on each line of that file will be executed. If the file is empty,
all examples will be run (as if --example was not specified).
If the argument is not an existing file, then it is treated as
an example name directly, causing RSpec to run just the example
matching that name
-s, --specification [NAME] DEPRECATED - use -e instead
(This will be removed when autotest works with -e)
-l, --line LINE_NUMBER Execute example group or example at given line.
(does not work for dynamically generated examples)
-f, --format FORMAT[:WHERE] Specifies what format to use for output. Specify WHERE to tell
the formatter where to write the output. All built-in formats
expect WHERE to be a file name, and will write to $stdout if it's
not specified. The --format option may be specified several times
if you want several outputs
Builtin formats:
silent|l : No output
progress|p : Text-based progress bar
profile|o : Text-based progress bar with profiling of 10 slowest examples
specdoc|s : Code example doc strings
nested|n : Code example doc strings with nested groups indented
html|h : A nice HTML report
failing_examples|e : Write all failing examples - input for --example
failing_example_groups|g : Write all failing example groups - input for --example
FORMAT can also be the name of a custom formatter class
(in which case you should also specify --require to load it)
-r, --require FILE Require FILE before running specs
Useful for loading custom formatters or other extensions.
If this option is used it must come before the others
-b, --backtrace Output full backtrace
-L, --loadby STRATEGY Specify the strategy by which spec files should be loaded.
STRATEGY can currently only be 'mtime' (File modification time)
By default, spec files are loaded in alphabetical order if --loadby
is not specified.
-R, --reverse Run examples in reverse order
-t, --timeout FLOAT Interrupt and fail each example that doesn't complete in the
specified time
-H, --heckle CODE If all examples pass, this will mutate the classes and methods
identified by CODE little by little and run all the examples again
for each mutation. The intent is that for each mutation, at least
one example *should* fail, and RSpec will tell you if this is not the
case. CODE should be either Some::Module, Some::Class or
Some::Fabulous#method}
-d, --dry-run Invokes formatters without executing the examples.
-O, --options PATH Read options from a file
-G, --generate-options PATH Generate an options file for --options
-U, --runner RUNNER Use a custom Runner.
-u, --debugger Enable ruby-debugging.
-X, --drb Run examples via DRb. (For example against script/spec_server)
--port PORT Port for DRb server. (Ignored without --drb)
-v, --version Show version
--autospec
-h, --help You're looking at it