diff --git a/crates/nu-command/tests/commands/def.rs b/crates/nu-command/tests/commands/def.rs
index 899b25a20c..d866419e1c 100644
--- a/crates/nu-command/tests/commands/def.rs
+++ b/crates/nu-command/tests/commands/def.rs
@@ -2,8 +2,6 @@ use nu_test_support::nu;
 use nu_test_support::playground::Playground;
 use std::fs;
 
-// FIXME: jt: needs more work
-#[ignore]
 #[test]
 fn def_with_comment() {
     Playground::setup("def_with_comment", |dirs, _| {
@@ -14,7 +12,7 @@ def e [arg] {echo $arg}
         fs::write(dirs.root().join("def_test"), data).expect("Unable to write file");
         let actual = nu!(
             cwd: dirs.root(),
-            "source def_test; help e | to json"
+            "source def_test; help e | to json -r"
         );
 
         assert!(actual.out.contains("My echo\\n\\n"));
diff --git a/crates/nu-command/tests/commands/flatten.rs b/crates/nu-command/tests/commands/flatten.rs
index c2ff356794..ef14e058d8 100644
--- a/crates/nu-command/tests/commands/flatten.rs
+++ b/crates/nu-command/tests/commands/flatten.rs
@@ -2,8 +2,6 @@ use nu_test_support::fs::Stub::FileWithContentToBeTrimmed;
 use nu_test_support::playground::Playground;
 use nu_test_support::{nu, pipeline};
 
-// FIXME: jt: needs more work
-#[ignore]
 #[test]
 fn flatten_nested_tables_with_columns() {
     let actual = nu!(
@@ -11,7 +9,7 @@ fn flatten_nested_tables_with_columns() {
         r#"
             echo [[origin, people]; [Ecuador, ('Andres' | wrap name)]]
                  [[origin, people]; [Nu, ('nuno' | wrap name)]]
-            | flatten
+            | flatten | flatten
             | get name
             | str collect ','
         "#
@@ -20,16 +18,14 @@ fn flatten_nested_tables_with_columns() {
     assert_eq!(actual.out, "Andres,nuno");
 }
 
-// FIXME: jt: needs more work
-#[ignore]
 #[test]
 fn flatten_nested_tables_that_have_many_columns() {
     let actual = nu!(
         cwd: ".", pipeline(
         r#"
             echo [[origin, people]; [Ecuador, (echo [[name, meal]; ['Andres', 'arepa']])]]
-                 [[origin, people]; [USA, (echo [[name, meal]; ['Katz', 'nurepa']])]]
-            | flatten
+            [[origin, people]; [USA, (echo [[name, meal]; ['Katz', 'nurepa']])]]
+            | flatten | flatten
             | get meal
             | str collect ','
         "#
diff --git a/crates/nu-command/tests/commands/move_/column.rs b/crates/nu-command/tests/commands/move_/column.rs
index cc807e9f9f..94ad0ff24b 100644
--- a/crates/nu-command/tests/commands/move_/column.rs
+++ b/crates/nu-command/tests/commands/move_/column.rs
@@ -107,8 +107,6 @@ fn moves_a_column_after() {
     })
 }
 
-// FIXME: jt: needs more work
-#[ignore]
 #[test]
 fn moves_columns_after() {
     Playground::setup("move_column_test_4", |dirs, sandbox| {
@@ -132,7 +130,7 @@ fn moves_columns_after() {
             r#"
                 open sample.csv
                 | move letters and_more --after column1
-                | get
+                | columns
                 | select 1 2
                 | str collect
             "#
diff --git a/crates/nu-command/tests/commands/path/exists.rs b/crates/nu-command/tests/commands/path/exists.rs
index 0ab51ac939..9a1b496e04 100644
--- a/crates/nu-command/tests/commands/path/exists.rs
+++ b/crates/nu-command/tests/commands/path/exists.rs
@@ -2,8 +2,6 @@ use nu_test_support::fs::Stub::EmptyFile;
 use nu_test_support::nu;
 use nu_test_support::playground::Playground;
 
-// FIXME: jt: needs more work
-#[ignore]
 #[test]
 fn checks_if_existing_file_exists() {
     Playground::setup("path_exists_1", |dirs, sandbox| {
diff --git a/crates/nu-command/tests/commands/path/type_.rs b/crates/nu-command/tests/commands/path/type_.rs
index 76b6239936..040c77c987 100644
--- a/crates/nu-command/tests/commands/path/type_.rs
+++ b/crates/nu-command/tests/commands/path/type_.rs
@@ -15,8 +15,6 @@ fn returns_type_of_missing_file() {
     assert_eq!(actual.out, "");
 }
 
-// FIXME: jt: needs more work
-#[ignore]
 #[test]
 fn returns_type_of_existing_file() {
     Playground::setup("path_expand_1", |dirs, sandbox| {
@@ -36,8 +34,6 @@ fn returns_type_of_existing_file() {
     })
 }
 
-// FIXME: jt: needs more work
-#[ignore]
 #[test]
 fn returns_type_of_existing_directory() {
     Playground::setup("path_expand_1", |dirs, sandbox| {
diff --git a/crates/nu-command/tests/commands/reduce.rs b/crates/nu-command/tests/commands/reduce.rs
index 95d428a515..3aba47e562 100644
--- a/crates/nu-command/tests/commands/reduce.rs
+++ b/crates/nu-command/tests/commands/reduce.rs
@@ -54,7 +54,7 @@ fn reduce_numbered_example() {
         cwd: ".", pipeline(
         r#"
         echo one longest three bar
-        reduce -n { |it, acc| if ($it | str length) > ($acc | str length) {echo $it} else {echo $acc}}
+        | reduce -n { |it, acc| if ($it.item | str length) > ($acc | str length) {echo $it.item} else {echo $acc}}
         | get index
         "#
         )
diff --git a/crates/nu-command/tests/commands/select.rs b/crates/nu-command/tests/commands/select.rs
index 8881782294..f6364b35ee 100644
--- a/crates/nu-command/tests/commands/select.rs
+++ b/crates/nu-command/tests/commands/select.rs
@@ -106,8 +106,6 @@ fn column_names_with_spaces() {
     assert_eq!(actual.out, "Robalino Jnth");
 }
 
-// FIXME: jt: needs more work
-#[ignore]
 #[test]
 fn ignores_duplicate_columns_selected() {
     let actual = nu!(cwd: ".", pipeline(
@@ -119,7 +117,7 @@ fn ignores_duplicate_columns_selected() {
                 [Andrés Jnth]
             ]
             | select "first name" "last name" "first name"
-            | get
+            | columns
             | str collect " "
         "#
     ));
diff --git a/crates/nu-command/tests/commands/sort_by.rs b/crates/nu-command/tests/commands/sort_by.rs
index cf21438583..87398661fe 100644
--- a/crates/nu-command/tests/commands/sort_by.rs
+++ b/crates/nu-command/tests/commands/sort_by.rs
@@ -21,8 +21,6 @@ fn by_column() {
     assert_eq!(actual.out, "description");
 }
 
-// FIXME: jt: needs more work
-#[ignore]
 #[test]
 fn by_invalid_column() {
     let actual = nu!(
@@ -41,8 +39,8 @@ fn by_invalid_column() {
         "#
     ));
 
-    assert!(actual.err.contains("Can not find column to sort by"));
-    assert!(actual.err.contains("invalid column"));
+    assert!(actual.err.contains("Cannot find column"));
+    assert!(actual.err.contains("value originates here"));
 }
 
 // FIXME: jt: needs more work
@@ -53,15 +51,14 @@ fn by_invalid_types() {
         cwd: "tests/fixtures/formats", pipeline(
         r#"
             open cargo_sample.toml --raw
-            | echo [1 "foo"]
+            | echo ["foo" 1]
             | sort-by
+            | json -r
         "#
     ));
 
-    assert!(actual.err.contains("Not all values can be compared"));
-    assert!(actual
-        .err
-        .contains("Unable to sort values, as \"integer\" cannot compare against \"string\""));
+    let json_output = r#"[1,"foo"]"#;
+    assert_eq!(actual.out, json_output);
 }
 
 #[test]
@@ -93,7 +90,6 @@ fn ls_sort_by_name_sensitive() {
         "#
     ));
 
-    //let json_output = r#"[{"name":"B.txt"},{"name":"C"},{"name":"a.txt"}]"#;
     let json_output = r#"[{"name": "B.txt"},{"name": "C"},{"name": "a.txt"}]"#;
 
     assert_eq!(actual.out, json_output);
diff --git a/crates/nu-command/tests/commands/source.rs b/crates/nu-command/tests/commands/source.rs
index dcc342d832..8a15a3ec14 100644
--- a/crates/nu-command/tests/commands/source.rs
+++ b/crates/nu-command/tests/commands/source.rs
@@ -101,8 +101,6 @@ fn try_source_foo_without_quotes_in(testdir: &str, playdir: &str) {
     });
 }
 
-// FIXME: jt: needs more work
-#[ignore]
 #[test]
 fn sources_unicode_file_in_normal_dir() {
     try_source_foo_with_single_quotes_in("foo", "source_test_1");
@@ -110,8 +108,6 @@ fn sources_unicode_file_in_normal_dir() {
     try_source_foo_without_quotes_in("foo", "source_test_3");
 }
 
-// FIXME: jt: needs more work
-#[ignore]
 #[test]
 fn sources_unicode_file_in_unicode_dir_without_spaces_1() {
     try_source_foo_with_single_quotes_in("🚒", "source_test_4");
@@ -119,8 +115,6 @@ fn sources_unicode_file_in_unicode_dir_without_spaces_1() {
     try_source_foo_without_quotes_in("🚒", "source_test_6");
 }
 
-// FIXME: jt: needs more work
-#[ignore]
 #[cfg(not(windows))] // ':' is not allowed in Windows paths
 #[test]
 fn sources_unicode_file_in_unicode_dir_without_spaces_2() {
diff --git a/crates/nu-command/tests/commands/with_env.rs b/crates/nu-command/tests/commands/with_env.rs
index 32d9d4f22d..8ea9ba22bc 100644
--- a/crates/nu-command/tests/commands/with_env.rs
+++ b/crates/nu-command/tests/commands/with_env.rs
@@ -65,8 +65,6 @@ fn test_redirection2() {
     assert_eq!(actual.out, "10");
 }
 
-// FIXME: jt: needs more work
-#[ignore]
 #[test]
 fn with_env_hides_variables_in_parent_scope() {
     let actual = nu!(
@@ -82,8 +80,6 @@ fn with_env_hides_variables_in_parent_scope() {
     );
 
     assert_eq!(actual.out, "11");
-    assert!(actual.err.contains("error"));
-    assert!(actual.err.contains("Unknown column"));
 }
 
 // FIXME: jt: needs more work
diff --git a/crates/nu-command/tests/commands/zip.rs b/crates/nu-command/tests/commands/zip.rs
index 23470f05a5..515d657753 100644
--- a/crates/nu-command/tests/commands/zip.rs
+++ b/crates/nu-command/tests/commands/zip.rs
@@ -5,25 +5,13 @@ use nu_test_support::{nu, pipeline};
 const ZIP_POWERED_TEST_ASSERTION_SCRIPT: &str = r#"
 def expect [
     left,
-    right,
-    --to-eq
+    --to-eq,
+    right
 ] {
-    $left | zip { $right } | all? {
-        $it.name.0 == $it.name.1 && $it.commits.0 == $it.commits.1
+    $left | zip { $right } | all? {|row|
+        $row.name.0 == $row.name.1 && $row.commits.0 == $row.commits.1
     }
 }
-
-def add-commits [n] {
-  each {
-    let contributor = $it;
-    let name = $it.name;
-    let commits = $it.commits;
-
-    $contributor | merge {
-      [[commits]; [($commits + $n)]]
-    }
-  }
-}
 "#;
 
 // FIXME: jt: needs more work
@@ -48,7 +36,7 @@ fn zips_two_tables() {
                   [    jt,    20]
                 ]);
 
-                let actual = ($contributors | add-commits 10);
+                let actual = ($contributors | update commits {{ |i| ($i.commits + 10) }});
 
                 expect $actual --to-eq [[name, commits]; [andres, 20] [jt, 30]]
                 "#,