[MODULES-2370] file_line.rb: Fix `line` attribute validation

`file_line` type: During validation, do not require `line` attribute if:
* `ensure` is `absent`,
* `match` is not empty,
* and `match_for_absence` is `true`.

Also update `spec` tests to reflect this.

1 files changed, 5 insertions, 2 deletions

diff --git a/spec/unit/puppet/type/file_line_spec.rb b/spec/unit/puppet/type/file_line_spec.rb
index f1430f2..48e2670 100755
--- a/spec/unit/puppet/type/file_line_spec.rb
+++ b/spec/unit/puppet/type/file_line_spec.rb
@@ -41,10 +41,13 @@ describe Puppet::Type.type(:file_line) do
     expect { file_line[:path] = 'file' }.to raise_error(Puppet::Error, /File paths must be fully qualified/)
   end
   it 'should require that a line is specified' do
-    expect { Puppet::Type.type(:file_line).new(:name => 'foo', :path => '/tmp/file') }.to raise_error(Puppet::Error, /Both line and path are required attributes/)
+    expect { Puppet::Type.type(:file_line).new(:name => 'foo', :path => '/tmp/file') }.to raise_error(Puppet::Error, /line is a required attribute/)
+  end
+  it 'should not require that a line is specified when matching for absence' do
+    expect { Puppet::Type.type(:file_line).new(:name => 'foo', :path => '/tmp/file', :ensure => :absent, :match_for_absence => :true, :match => 'match') }.not_to raise_error
   end
   it 'should require that a file is specified' do
-    expect { Puppet::Type.type(:file_line).new(:name => 'foo', :line => 'path') }.to raise_error(Puppet::Error, /Both line and path are required attributes/)
+    expect { Puppet::Type.type(:file_line).new(:name => 'foo', :line => 'path') }.to raise_error(Puppet::Error, /path is a required attribute/)
   end
   it 'should default to ensure => present' do
     expect(file_line[:ensure]).to eq :present