Moved create document testing into library tests.

tests/document_test.rs

@@ -1,4 +1,4 @@
-use morethantext::{action::*, MoreThanText, TestMoreThanText};
+use morethantext::{action::*, ErrorID, Name, MoreThanText, TestMoreThanText};
 use uuid::Uuid;
 
 #[test]
@@ -7,4 +7,21 @@ fn is_document_created() {
     let doc_name = TestMoreThanText::random_name();
     let docdef = DocDef::new(doc_name.clone());
     mtt.create_document(docdef).unwrap();
+    let qry = Query::new(doc_name);
+    let result = mtt.records(qry).unwrap();
+    assert_eq!(result.len(), 0);
+}
+
+#[test]
+fn are_errors_produced_for_duplicate_names() {
+    let mut mtt = MoreThanText::new();
+    let docdef = DocDef::new(Name::english("duplicate"));
+    mtt.create_document(docdef.clone()).unwrap();
+    match mtt.create_document(docdef) {
+        Ok(_) => assert!(false, "should have failed"),
+        Err(err) => match err.error_id() {
+            ErrorID::NameAlreadyExists => {},
+            _ => unreachable!("got {:?}, should be name already exists", err),
+        }
+    }
 }