Add NPM Package tests

org.hl7.fhir.r5/src/test/java/org/hl7/fhir/r5/test/AllR5Tests.java

@@ -20,6 +20,7 @@ import org.junit.runners.Suite.SuiteClasses;
     BaseDateTimeTypeTest.class,
     OpenApiGeneratorTest.class,
     MetadataResourceManagerTester.class,
+    NpmPackageTests.class,
     SnapShotGenerationTests.class})
 
 public class AllR5Tests {

org.hl7.fhir.r5/src/test/java/org/hl7/fhir/r5/test/NpmPackageTests.java

@@ -0,0 +1,100 @@
+package org.hl7.fhir.r5.test;
+
+import static org.junit.Assert.*;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+
+import org.hl7.fhir.r5.test.utils.TestingUtilities;
+import org.hl7.fhir.utilities.Utilities;
+import org.hl7.fhir.utilities.cache.NpmPackage;
+import org.junit.Test;
+
+import junit.framework.Assert;
+
+public class NpmPackageTests {
+
+  @Test
+  public void testOldFolder() throws IOException {
+    // extract the test
+    String dst = Utilities.path("[tmp]", "npm", "test.format.old");
+    Utilities.clearDirectory(dst);
+    unzip(TestingUtilities.loadTestResourceStream("npm", "test.format.old.zip"), new File(dst));
+    dst = Utilities.path(dst, "test.format.old");
+    NpmPackage npm = NpmPackage.fromFolder(dst);
+    checkNpm(npm);
+  }
+
+  @Test
+  public void testNewFolder() throws IOException {
+    // extract the test
+    String dst = Utilities.path("[tmp]", "npm", "test.format.new");
+    Utilities.clearDirectory(dst);
+    unzip(TestingUtilities.loadTestResourceStream("npm", "test.format.new.zip"), new File(dst));
+    dst = Utilities.path(dst, "test.format.new");
+    NpmPackage npm = NpmPackage.fromFolder(dst);
+    checkNpm(npm);
+  }
+
+  @Test
+  public void testOldTgz() throws IOException {
+    NpmPackage npm = NpmPackage.fromPackage(TestingUtilities.loadTestResourceStream("npm", "test.format.old.tgz"));
+    checkNpm(npm);
+  }
+
+  @Test
+  public void testNewTgz() throws IOException {
+    NpmPackage npm = NpmPackage.fromPackage(TestingUtilities.loadTestResourceStream("npm", "test.format.new.tgz"));
+    checkNpm(npm);
+  }
+
+  private void checkNpm(NpmPackage npm) throws IOException {
+    Assert.assertEquals(1, npm.list("other").size());
+    Assert.assertEquals("help.png", npm.list("other").get(0));
+    Assert.assertEquals(1, npm.list("package").size());
+    Assert.assertEquals("StructureDefinition-Definition.json", npm.list("package").get(0));
+    
+  }
+
+  private static void unzip(InputStream source, File destDir) throws IOException {
+    Utilities.createDirectory(destDir.getAbsolutePath());
+    
+    byte[] buffer = new byte[1024];
+    
+    ZipInputStream zis = new ZipInputStream(source);
+    ZipEntry zipEntry = zis.getNextEntry();
+    while (zipEntry != null) {
+        File newFile = newFile(destDir, zipEntry);
+        if (zipEntry.isDirectory()) {
+          Utilities.createDirectory(newFile.getAbsolutePath());          
+        } else {
+          FileOutputStream fos = new FileOutputStream(newFile);
+          int len;
+          while ((len = zis.read(buffer)) > 0) {
+            fos.write(buffer, 0, len);
+          }
+          fos.close();
+        }
+        zipEntry = zis.getNextEntry();
+    }
+    zis.closeEntry();
+    zis.close();
+  }
+  
+  public static File newFile(File destinationDir, ZipEntry zipEntry) throws IOException {
+    File destFile = new File(destinationDir, zipEntry.getName());
+     
+    String destDirPath = destinationDir.getCanonicalPath();
+    String destFilePath = destFile.getCanonicalPath();
+    if (!destFilePath.startsWith(destDirPath + File.separator)) {
+        throw new IOException("Entry is outside of the target dir: " + zipEntry.getName());
+    }    
+    return destFile;
+}
+}