Merge pull request #1291 from SplitTime/oveson/fix-single-column-csv-…

…import

Fix single-column CSV import bug

lib/etl/extractors/csv_file_strategy.rb

@@ -10,6 +10,7 @@ class CsvFileStrategy
       MAX_FILE_SIZE = 1.megabyte
       BYTE_ORDER_MARK = String.new("\xEF\xBB\xBF").force_encoding("UTF-8").freeze
       IMPORT_OPTIONS = {
+        col_sep: ",",
         downcase_header: false,
         duplicate_header_suffix: nil,
         force_utf8: true,

spec/fixtures/files/single_column.csv

@@ -0,0 +1,4 @@
+Order ID
+123
+456
+789

spec/lib/etl/extractors/csv_file_strategy_spec.rb

@@ -119,6 +119,24 @@
       end
     end
 
+    context "when the file has a single column" do
+      let(:file) { file_fixture("single_column.csv") }
+
+      it "does not return errors" do
+        subject.extract
+
+        expect(subject.errors).to be_empty
+      end
+
+      it "returns headers converted to symbols" do
+        expect(raw_data.first.to_h.keys).to eq([:Order_ID])
+      end
+
+      it "returns expected parsed structs" do
+        expect(raw_data.map { |struct| struct[:Order_ID] }).to match_array([123, 456, 789])
+      end
+    end
+
     context "when the file has non-standard characters in headers" do
       let(:file) { file_fixture("test_efforts_header_formats.csv") }