#24 start adding classes for the acroform api

src/UglyToad.PdfPig.Tests/Integration/AcroFormsBasicFieldsTests.cs

@@ -0,0 +1,35 @@
+namespace UglyToad.PdfPig.Tests.Integration
+{
+    using System;
+    using Xunit;
+
+    public class AcroFormsBasicFieldsTests
+    {
+        private static string GetFilename()
+        {
+            return IntegrationHelpers.GetDocumentPath("AcroFormsBasicFields");
+        }
+
+        [Fact]
+        public void GetFormNotNull()
+        {
+            using (var document = PdfDocument.Open(GetFilename(), new ParsingOptions { UseLenientParsing = false }))
+            {
+                var form = document.GetForm();
+                Assert.NotNull(form);
+            }
+        }
+
+        [Fact]
+        public void GetFormDisposedThrows()
+        {
+            var document = PdfDocument.Open(GetFilename());
+
+            document.Dispose();
+
+            Action action = () => document.GetForm();
+
+            Assert.Throws<ObjectDisposedException>(action);
+        }
+    }
+}