Added unit test

Author: ctmay4

src/main/java/com/imsweb/x12/reader/X12Reader.java

@@ -51,7 +51,7 @@ public class X12Reader {
 
     private static final Map<FileType, String> _TYPES = new HashMap<>();
 
-    private List<Loop> _dataLoops = new ArrayList<Loop>();
+    private List<Loop> _dataLoops = new ArrayList<>();
     private List<String> _errors = new ArrayList<>();
     private List<LoopConfig> _config = new ArrayList<>();
     TransactionDefinition _definition;
@@ -378,7 +378,6 @@ private Separators getSeparators(Reader reader) throws IOException {
      * @param prevousLoopId---the previous loop id that was stored
      * @return loopID----the id of the loop that was just stored
      */
-
     private String storeData(String currentLoopId, List<String> loopLines, String prevousLoopId, Separators separators) {
         Loop newLoop = new Loop(separators, currentLoopId);
         for (String s : loopLines) {
@@ -453,7 +452,6 @@ else if (getCurrentLoop().getLoop(primaryIndex).getLoops().size() != 0 && !getCu
      * @param loop loop to be proceesed
      * @param parentID parent loop id of the loop being processed
      */
-
     private void getLoopConfiguration(LoopDefinition loop, String parentID) {
         if (!containsLoop(loop.getXid())) {
             if (loop.getLoop() != null) {

src/test/java/com/imsweb/x12/reader/X12ReaderTest.java

@@ -599,6 +599,14 @@ public void testBadFirstLine() throws Exception {
         assertTrue(reader.getErrors().contains("Error getting separators"));
     }
 
+    @Test
+    public void testMissingFirstLine() throws Exception {
+        URL url = this.getClass().getResource("/837_5010/x12_no_isa_line.txt");
+        X12Reader reader = new X12Reader(FileType.ANSI837_5010_X222, new File(url.getFile()));
+        assertEquals(1, reader.getErrors().size());
+        assertTrue(reader.getErrors().contains("Error getting separators"));
+    }
+
     @Test
     public void testConsistentVersions() throws Exception {
         URL url = this.getClass().getResource("/837_5010/x12_valid.txt");

src/test/resources/837_5010/x12_no_isa_line.txt

@@ -0,0 +1,44 @@
+GS*HC*SENDER CODE*RECEIVER CODE*19991231*0802*1*X*005010X222A1~
+ST*837*987654*005010X222A1~
+BHT*0019*00*0123*19960918*0932*CH~
+NM1*41*2*ANGELASZEK MEDICAL*****46*999999999~
+PER*IC*DAVID ANGELASZEK*TE*3016809770*EX*123~
+NM1*40*2*HEALTH RECEIVER*****46*111222333~
+HL*1**20*1~
+NM1*85*2*MEDICAL GROUP*****XX*1234567890~
+N3*3901 CALVERTON BLVD~
+N4*CALVERTON*MD*20705~
+REF*EI*123456789~
+PER*IC*JANE JONES*TE*3022893453~
+PER*IC*JANE JANES*TE*3012833053*EX*201~
+NM1*87*2~
+N3*227 LASTNER LANE~
+N4*GREENBELT*MD*20770~
+HL*2*1*22*1~
+SBR*P**SUBSCRIBER GROUP******CI~
+NM1*IL*1*DOE*JOHN*T**JR*MI*123456~
+NM1*PR*2*HEALTH INSURANCE COMPANY*****PI*11122333~
+CLM*A37YH556*500***11:B:1*Y*A*Y*I*P~
+HI*BK*8901*BF*87200*BF:5559~
+LX*1~
+SV1*HC:99211:25*12.25*UN*1*11**1:2:3**Y~
+DTP*472*RD8*20050314-20050325~
+HL*1**20*1~
+NM1*85*2*MEDICAL GROUP*****XX*1234567890~
+N3*3901 CALVERTON BLVD~
+N4*CALVERTON*MD*20705~
+REF*EI*123456789~
+PER*IC*JANE JONES*TE*3022893453~
+PER*IC*JANE JANES*TE*3012833053*EX*201~
+HL*2*1*22*1~
+SBR*P**SUBSCRIBER GROUP******CI~
+NM1*IL*1*DOE*JOHN*T**JR*MI*123456~
+NM1*PR*2*HEALTH INSURANCE COMPANY*****PI*11122333~
+CLM*A37YH556*500***11:B:1*Y*A*Y*I*P~
+HI*BK*8901*BF*87200*BF:5559~
+LX*1~
+SV1*HC:99211:25*12.25*UN*1*11**1:2:3**Y~
+DTP*472*RD8*20050314-20050325~
+SE*25*987654~
+GE*1*1~
+IEA*1*000000905~