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#!/usr/bin/perl
# Unit testing for PPI::Element
use lib 't/lib';
use PPI::Test::pragmas;
use PPI::Document ();
use Test::More tests => ($ENV{AUTHOR_TESTING} ? 1 : 0) + 28;
use Helper 'safe_new';
__REPLACE_METH: {
my $Document = safe_new \"print 'Hello World';";
my $string = $Document->find_first('Token::Quote');
isa_ok( $string, 'PPI::Token::Quote' );
is( $string->content, "'Hello World'", 'Got expected token' );
my $foo = PPI::Token::Quote::Single->new("'foo'");
isa_ok( $foo, 'PPI::Token::Quote::Single' );
is( $foo->content, "'foo'", 'Created Quote token' );
$string->replace( $foo );
is( $Document->serialize, "print 'foo';", 'replace works' );
}
__REPLACE_CHILD_METH: {
my $Document = safe_new \"print 'Hello World';";
my $statement = $Document->find_first('Statement');
isa_ok( $statement, 'PPI::Statement' );
is( $statement->content, "print 'Hello World';", 'Got expected token' );
my $doc = safe_new \'for my $var ( @vars ) { say "foo" }';
my $foo = $doc->find('PPI::Statement::Compound');
isa_ok( $foo->[0], 'PPI::Statement::Compound');
is( $foo->[0]->content, q~for my $var ( @vars ) { say "foo" }~, 'for loop');
ok( $statement->parent->replace_child( $statement, $foo->[0] ), 'replace_child success' );
is( $Document->serialize, 'for my $var ( @vars ) { say "foo" }', 'replace works' );
{
my $doc = safe_new \'if ($foo) { ... }';
my $compound = $doc->find('PPI::Statement::Compound');
my $old_child = $compound->[0]->child(2);
is( $compound->[0]->child(2), '($foo)', 'found child');
my $replacement = PPI::Token->new('($bar)');
my $statement = $doc->find_first('Statement');
my $success = $statement->replace_child($old_child,$replacement);
ok( $success, 'replace_child returns success' );
is( $compound->[0]->child(2), '($bar)', 'child has been replaced');
is( $doc->content, 'if ($bar) { ... }', 'document updated');
}
{
my $text = 'if ($foo) { ... }';
my $doc = safe_new \$text;
my $compound = $doc->find('PPI::Statement::Compound');
is( $compound->[0]->child(2), '($foo)', 'found child');
my $replacement = PPI::Token->new('($bar)');
my $statement = $doc->find_first('Statement');
# Try to replace a child which does not exist.
my $success = $statement->replace_child($replacement,$replacement);
ok( !$success, 'replace_child returns failure' );
is( $doc->content, $text, 'document not updated');
}
}
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