Make converter param name case insensitive

lib/convert_api/task.rb

@@ -15,10 +15,11 @@ def run
 
       from_format = @from_format || detect_format(params)
       read_timeout = @conversion_timeout + config.conversion_timeout_delta if @conversion_timeout
-      converter = params[:converter] ? "/converter/#{params[:converter]}" : ''
+      converter = detect_converter(params)
+      converter_path = converter ? "/converter/#{converter}" : ''
 
       response = ConvertApi.client.post(
-        "convert/#{from_format}/to/#{@to_format}#{converter}",
+        "convert/#{from_format}/to/#{@to_format}#{converter_path}",
         params,
         read_timeout: read_timeout,
       )
@@ -69,6 +70,14 @@ def detect_format(params)
       FormatDetector.new(resource, @to_format).run
     end
 
+    def detect_converter(params)
+      params.each do |key, value|
+        return value if key.to_s.downcase == 'converter'
+      end
+
+      nil
+    end
+
     def config
       ConvertApi.config
     end

spec/convert_api/task_spec.rb

@@ -1,17 +1,27 @@
-RSpec.describe ConvertApi::Task do
+RSpec.describe ConvertApi::Task, '#run' do
+  subject { task.run }
+
   let(:task) { described_class.new(from_format, to_format, params) }
   let(:from_format) { 'txt' }
   let(:to_format) { 'pdf' }
-  let(:params) { { File: 'https://www.w3.org/TR/2003/REC-PNG-20031110/iso_8859-1.txt' } }
+  let(:params) { { File: file } }
+  let(:file) { 'https://www.w3.org/TR/2003/REC-PNG-20031110/iso_8859-1.txt' }
+  let(:result) { double }
+
+  it 'executes task and returns result' do
+    expect(ConvertApi.client).to(
+      receive(:post).with('convert/txt/to/pdf', instance_of(Hash), instance_of(Hash)).and_return(result)
+    )
 
-  describe '#run' do
-    subject { task.run }
+    expect(subject).to be_instance_of(ConvertApi::Result)
+  end
 
-    let(:result) { double }
+  context 'with converter' do
+    let(:params) { { File: file, Converter: 'openoffice' } }
 
-    it 'executes task and returns result' do
+    it 'adds converter to the path' do
       expect(ConvertApi.client).to(
-        receive(:post).with('convert/txt/to/pdf', instance_of(Hash), instance_of(Hash)).and_return(result)
+        receive(:post).with('convert/txt/to/pdf/converter/openoffice', instance_of(Hash), instance_of(Hash)).and_return(result)
       )
 
       expect(subject).to be_instance_of(ConvertApi::Result)