This commit is the continuing phase of extracting functionality to subcrates. We extract test helpers and begin to change Nu shell's test organization along with it.

tests/converting_formats/sqlite.rs

@@ -0,0 +1,19 @@
+use test_support::{nu, pipeline};
+
+#[test]
+fn table_to_sqlite_and_back_into_table() {
+    let actual = nu!(
+        cwd: "tests/fixtures/formats", pipeline(
+        r#"
+            open sample.db
+            | to-sqlite
+            | from-sqlite
+            | get table_values
+            | nth 2
+            | get x
+            | echo $it
+        "#
+    ));
+
+    assert_eq!(actual, "hello");
+}