(#8678) Add validate_array and validate_string functions

The accounts module is making use of validate_array() and
validate_string() which do not exist int he stdlib module without this
patch.

This patch adds the two functions to the stdlib with unit tests.

Reviewed-by: Dan Bode

2 files changed, 70 insertions, 0 deletions

diff --git a/lib/puppet/parser/functions/validate_array.rb b/lib/puppet/parser/functions/validate_array.rb
new file mode 100644
index 0000000..a7a7165
--- /dev/null
+++ b/lib/puppet/parser/functions/validate_array.rb
@@ -0,0 +1,35 @@
+module Puppet::Parser::Functions
+
+  newfunction(:validate_array, :doc => <<-'ENDHEREDOC') do |args|
+    Validate all passed values are a Array data structure
+    value does not pass the check.
+
+    Example:
+
+    These values validate
+
+        $my_array = [ 'one', 'two' ]
+        validate_array($my_array)
+
+    These values do NOT validate
+
+        validate_array(true)
+        validate_array('some_string')
+        $undefined = undef
+        validate_array($undefined)
+
+    ENDHEREDOC
+
+    unless args.length > 0 then
+      raise Puppet::ParseError, ("validate_array(): wrong number of arguments (#{args.length}; must be > 0)")
+    end
+
+    args.each do |arg|
+      unless arg.is_a?(Array)
+        raise Puppet::ParseError, ("#{arg.inspect} is not an Array.  It looks to be a #{arg.class}")
+      end
+    end
+
+  end
+
+end
diff --git a/lib/puppet/parser/functions/validate_string.rb b/lib/puppet/parser/functions/validate_string.rb
new file mode 100644
index 0000000..d0e1376
--- /dev/null
+++ b/lib/puppet/parser/functions/validate_string.rb
@@ -0,0 +1,35 @@
+module Puppet::Parser::Functions
+
+  newfunction(:validate_string, :doc => <<-'ENDHEREDOC') do |args|
+    Validate all passed values are a string data structure
+    value does not pass the check.
+
+    Example:
+
+    These values validate
+
+        $my_string = "one two"
+        validate_string($my_string)
+
+    These values do NOT validate
+
+        validate_string(true)
+        validate_string([ 'some', 'array' ])
+        $undefined = undef
+        validate_string($undefined)
+
+    ENDHEREDOC
+
+    unless args.length > 0 then
+      raise Puppet::ParseError, ("validate_string(): wrong number of arguments (#{args.length}; must be > 0)")
+    end
+
+    args.each do |arg|
+      unless arg.is_a?(String)
+        raise Puppet::ParseError, ("#{arg.inspect} is not a string.  It looks to be a #{arg.class}")
+      end
+    end
+
+  end
+
+end