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pry--pry/spec/commands/edit_spec.rb
2012-12-18 00:51:21 -08:00

318 lines
7.9 KiB
Ruby

require 'helper'
describe "edit" do
before do
@old_editor = Pry.config.editor
@file = @line = @contents = nil
Pry.config.editor = lambda do |file, line|
@file = file; @line = line; @contents = File.read(@file)
nil
end
end
after do
Pry.config.editor = @old_editor
end
describe "with FILE" do
it "should invoke Pry.config.editor with absolutified filenames" do
pry_eval 'edit lib/pry.rb'
@file.should == File.expand_path('lib/pry.rb')
FileUtils.touch '/tmp/bar.rb'
pry_eval 'edit /tmp/bar.rb'
@file.should == '/tmp/bar.rb'
end
it "should guess the line number from a colon" do
pry_eval 'edit lib/pry.rb:10'
@line.should == 10
end
it "should use the line number from -l" do
pry_eval 'edit -l 10 lib/pry.rb'
@line.should == 10
end
it "should not delete the file!" do
pry_eval 'edit Rakefile'
File.exist?(@file).should == true
end
describe do
before do
Pad.counter = 0
Pry.config.editor = lambda { |file, line|
File.open(file, 'w') { |f| f << "Pad.counter = Pad.counter + 1" }
nil
}
end
it "should reload the file if it is a ruby file" do
temp_file do |tf|
counter = Pad.counter
path = tf.path
pry_eval "edit #{path}"
Pad.counter.should == counter + 1
end
end
it "should not reload the file if it is not a ruby file" do
temp_file('.py') do |tf|
counter = Pad.counter
path = tf.path
pry_eval "edit #{path}"
Pad.counter.should == counter
end
end
it "should not reload a ruby file if -n is given" do
temp_file do |tf|
counter = Pad.counter
path = tf.path
Pad.counter.should == counter
end
end
it "should reload a non-ruby file if -r is given" do
temp_file('.pryrc') do |tf|
counter = Pad.counter
path = tf.path
pry_eval "edit -r #{path}"
Pad.counter.should == counter + 1
end
end
end
describe do
before do
@reloading = nil
Pry.config.editor = lambda do |file, line, reloading|
@file = file; @line = line; @reloading = reloading
nil
end
end
it "should pass the editor a reloading arg" do
pry_eval 'edit lib/pry.rb'
@reloading.should == true
pry_eval 'edit -n lib/pry.rb'
@reloading.should == false
end
end
end
describe "with --ex" do
before do
@t = pry_tester do
def last_exception=(exception)
@pry.last_exception = exception
end
end
end
describe "with a real file" do
before do
@tf = Tempfile.new(["pry", ".rb"])
@path = @tf.path
@tf << "1\n2\nraise RuntimeError"
@tf.flush
begin
load @path
rescue RuntimeError => e
@t.last_exception = e
end
end
after do
@tf.close(true)
File.unlink("#{@path}c") if File.exists?("#{@path}c") #rbx
end
it "should reload the file" do
Pry.config.editor = lambda {|file, line|
File.open(file, 'w'){|f| f << "FOO = 'BAR'" }
nil
}
defined?(FOO).should.be.nil
@t.eval 'edit --ex'
FOO.should == 'BAR'
end
it "should not reload the file if -n is passed" do
Pry.config.editor = lambda {|file, line|
File.open(file, 'w'){|f| f << "FOO2 = 'BAZ'" }
nil
}
defined?(FOO2).should.be.nil
@t.eval 'edit -n --ex'
defined?(FOO2).should.be.nil
end
describe "with --patch" do
# Original source code must be untouched.
it "should apply changes only in memory (monkey patching)" do
Pry.config.editor = lambda {|file, line|
File.open(file, 'w'){|f| f << "FOO3 = 'PIYO'" }
@patched_def = File.open(file, 'r').read
nil
}
defined?(FOO3).should.be.nil
@t.eval 'edit --ex --patch'
FOO3.should == 'PIYO'
@tf.rewind
@tf.read.should == "1\n2\nraise RuntimeError"
@patched_def.should == "FOO3 = 'PIYO'"
end
end
end
describe "with --ex NUM" do
before do
Pry.config.editor = proc do |file, line|
@__ex_file__ = file
@__ex_line__ = line
nil
end
@t.last_exception = mock_exception('a:1', 'b:2', 'c:3')
end
it 'should start on first level of backtrace with just --ex' do
@t.eval 'edit -n --ex'
@__ex_file__.should == "a"
@__ex_line__.should == 1
end
it 'should start editor on first level of backtrace with --ex 0' do
@t.eval 'edit -n --ex 0'
@__ex_file__.should == "a"
@__ex_line__.should == 1
end
it 'should start editor on second level of backtrace with --ex 1' do
@t.eval 'edit -n --ex 1'
@__ex_file__.should == "b"
@__ex_line__.should == 2
end
it 'should start editor on third level of backtrace with --ex 2' do
@t.eval 'edit -n --ex 2'
@__ex_file__.should == "c"
@__ex_line__.should == 3
end
it 'should display error message when backtrace level is invalid' do
proc {
@t.eval 'edit -n --ex 4'
}.should.raise(Pry::CommandError)
end
end
end
describe "without FILE" do
before do
@t = pry_tester
end
it "should edit the current expression if it's incomplete" do
@t.accept_line 'def a'
@t.process_command 'edit'
@contents.should == "def a\n"
end
it "should edit the previous expression if the current is empty" do
@t.eval 'def a; 2; end', 'edit'
@contents.should == "def a; 2; end\n"
end
it "should use a blank file if -t is specified" do
@t.eval 'def a; 5; end', 'edit -t'
@contents.should == "\n"
end
it "should use a blank file if -t given, even during an expression" do
@t.accept_line 'def a;'
@t.process_command 'edit -t'
@contents.should == "\n"
end
it "should position the cursor at the end of the expression" do
@t.eval "def a; 2;\nend"
@t.process_command 'edit'
@line.should == 2
end
it "should evaluate the expression" do
Pry.config.editor = lambda {|file, line|
File.open(file, 'w'){|f| f << "'FOO'\n" }
nil
}
@t.process_command 'edit'
@t.eval_string.should == "'FOO'\n"
end
it "should not evaluate the expression with -n" do
Pry.config.editor = lambda {|file, line|
File.open(file, 'w'){|f| f << "'FOO'\n" }
nil
}
@t.process_command 'edit -n'
@t.eval_string.should == ''
end
end
describe "with --in" do
it "should edit the nth line of _in_" do
pry_eval '10', '11', 'edit --in -2'
@contents.should == "10\n"
end
it "should edit the last line if no argument is given" do
pry_eval '10', '11', 'edit --in'
@contents.should == "11\n"
end
it "should edit a range of lines if a range is given" do
pry_eval "10", "11", "edit -i 1,2"
@contents.should == "10\n11\n"
end
it "should edit a multi-line expression as it occupies one line of _in_" do
pry_eval "class Fixnum\n def invert; -self; end\nend", "edit -i 1"
@contents.should == "class Fixnum\n def invert; -self; end\nend\n"
end
it "should not work with a filename" do
proc {
pry_eval 'edit ruby.rb -i'
}.should.raise(Pry::CommandError).
message.should =~ /Only one of --ex, --temp, --in and FILE/
end
it "should not work with nonsense" do
proc {
pry_eval 'edit --in three'
}.should.raise(Pry::CommandError).
message.should =~ /Not a valid range: three/
end
end
end