Added constuctor options.

lib/queryable_hash.rb

@@ -3,7 +3,7 @@
 require_relative "queryable_hash/wrapper"
 
 module QueryableHash
-  def self.wrap(hash)
-    Wrapper.new hash
+  def self.wrap(hash, **args)
+    Wrapper.new hash, **args
   end
 end

lib/queryable_hash/version.rb

@@ -1,3 +1,3 @@
 module QueryableHash
-  VERSION = "0.0.2"
+  VERSION = "0.0.3"
 end

lib/queryable_hash/wrapper.rb

@@ -2,9 +2,12 @@
 
 module QueryableHash
   class Wrapper < SimpleDelegator
+    attr_reader :nil_value, :raise_when_nil
 
-    def initialize(hash)
+    def initialize(hash, nil_value: nil, raise_when_nil: false)
       @original_hash = hash
+      @nil_value = nil_value
+      @raise_when_nil = raise_when_nil
       super hash
     end
 
@@ -19,7 +22,10 @@ def find_all(*queries, nil_value: nil)
       end
     end
 
-    def find_first(*queries, nil_value: nil, raise_when_nil: false)
+    def find_first(*queries, nil_value: nil, raise_when_nil: nil)
+      nil_value = @nil_value if nil_value.nil?
+      raise_when_nil = @raise_when_nil if raise_when_nil.nil?
+
       first = find_all(*queries, nil_value: nil_value).find do |result|
         result != nil_value
       end

test/wrapper_test.rb

@@ -63,11 +63,17 @@ class QueryableHashTest < PryTest::Test
       assert @queryable.find_first(query).nil?
     end
 
-    test "find_first with missing key and nil value" do
+    test "find_first with missing key and nil_value" do
       query = "nate.this.key.does.not.exist"
       assert @queryable.find_first(query, nil_value: "missing") == "missing"
     end
 
+    test "find_first with missing key and nil_value set by instance" do
+      query = "nate.this.key.does.not.exist"
+      queryable = QueryableHash.wrap(@data, nil_value: "missing")
+      assert queryable.find_first(query) == "missing"
+    end
+
     test "find_first with multiple queries some invalid" do
       term = @queryable.find_first(
         "glossary.div.list.entry.term",
@@ -79,7 +85,7 @@ class QueryableHashTest < PryTest::Test
       assert term == "Standard Generalized Markup Language"
     end
 
-    test "find_first with raise" do
+    test "find_first with raise_when_nil" do
       query = "nate.this.key.does.not.exist"
       begin
         @queryable.find_first(query, raise_when_nil: true)
@@ -89,6 +95,16 @@ class QueryableHashTest < PryTest::Test
       assert e
     end
 
+    test "find_first with raise_when_nil set by instance" do
+      query = "nate.this.key.does.not.exist"
+      begin
+        queryable = QueryableHash.wrap(@data, raise_when_nil: true)
+        queryable.find_first(query)
+      rescue NotFoundError => e
+      end
+      assert e
+    end
+
     test "to_hash" do
       assert @queryable.to_hash == @data
     end