Merged tests to produce a single binary (#12826)

This PR should close #7147 

# Description
Merged src/tests into /tests to produce a single binary.

![image](https://github.com/nushell/nushell/assets/94604837/84726469-d447-4619-b6d1-2d1415d0f42e)

# User-Facing Changes
No user facing changes

# Tests + Formatting
Moved tests. Tollkit check pr pass.

# After Submitting

---------

Co-authored-by: Ian Manske <ian.manske@pm.me>

tests/repl/test_commandline.rs

@@ -0,0 +1,142 @@
+use crate::repl::tests::{fail_test, run_test, TestResult};
+
+#[test]
+fn commandline_test_get_empty() -> TestResult {
+    run_test("commandline", "")
+}
+
+#[test]
+fn commandline_test_append() -> TestResult {
+    run_test(
+        "commandline edit --replace '0👩‍❤️‍👩2'\n\
+        commandline set-cursor 2\n\
+        commandline edit --append 'ab'\n\
+        print (commandline)\n\
+        commandline get-cursor",
+        "0👩‍❤️‍👩2ab\n\
+        2",
+    )
+}
+
+#[test]
+fn commandline_test_insert() -> TestResult {
+    run_test(
+        "commandline edit --replace '0👩‍❤️‍👩2'\n\
+        commandline set-cursor 2\n\
+        commandline edit --insert 'ab'\n\
+        print (commandline)\n\
+        commandline get-cursor",
+        "0👩‍❤️‍👩ab2\n\
+        4",
+    )
+}
+
+#[test]
+fn commandline_test_replace() -> TestResult {
+    run_test(
+        "commandline edit --replace '0👩‍❤️‍👩2'\n\
+        commandline edit --replace 'ab'\n\
+        print (commandline)\n\
+        commandline get-cursor",
+        "ab\n\
+        2",
+    )
+}
+
+#[test]
+fn commandline_test_cursor() -> TestResult {
+    run_test(
+        "commandline edit --replace '0👩‍❤️‍👩2'\n\
+        commandline set-cursor 1\n\
+        commandline edit --insert 'x'\n\
+        commandline",
+        "0x👩‍❤️‍👩2",
+    )?;
+    run_test(
+        "commandline edit --replace '0👩‍❤️‍👩2'\n\
+        commandline set-cursor 2\n\
+        commandline edit --insert 'x'\n\
+        commandline",
+        "0👩‍❤️‍👩x2",
+    )
+}
+
+#[test]
+fn commandline_test_cursor_show_pos_begin() -> TestResult {
+    run_test(
+        "commandline edit --replace '0👩‍❤️‍👩'\n\
+        commandline set-cursor 0\n\
+        commandline get-cursor",
+        "0",
+    )
+}
+
+#[test]
+fn commandline_test_cursor_show_pos_end() -> TestResult {
+    run_test(
+        "commandline edit --replace '0👩‍❤️‍👩'\n\
+        commandline set-cursor 2\n\
+        commandline get-cursor",
+        "2",
+    )
+}
+
+#[test]
+fn commandline_test_cursor_show_pos_mid() -> TestResult {
+    run_test(
+        "commandline edit --replace '0👩‍❤️‍👩2'\n\
+        commandline set-cursor 1\n\
+        commandline get-cursor",
+        "1",
+    )?;
+    run_test(
+        "commandline edit --replace '0👩‍❤️‍👩2'\n\
+        commandline set-cursor 2\n\
+        commandline get-cursor",
+        "2",
+    )
+}
+
+#[test]
+fn commandline_test_cursor_too_small() -> TestResult {
+    run_test(
+        "commandline edit --replace '123456'\n\
+        commandline set-cursor -1\n\
+        commandline edit --insert '0'\n\
+        commandline",
+        "0123456",
+    )
+}
+
+#[test]
+fn commandline_test_cursor_too_large() -> TestResult {
+    run_test(
+        "commandline edit --replace '123456'\n\
+        commandline set-cursor 10\n\
+        commandline edit --insert '0'\n\
+        commandline",
+        "1234560",
+    )
+}
+
+#[test]
+fn commandline_test_cursor_invalid() -> TestResult {
+    fail_test(
+        "commandline edit --replace '123456'\n\
+        commandline set-cursor 'abc'",
+        "expected int",
+    )
+}
+
+#[test]
+fn commandline_test_cursor_end() -> TestResult {
+    run_test(
+        "commandline edit --insert '🤔🤔'; commandline set-cursor --end; commandline get-cursor",
+        "2", // 2 graphemes
+    )
+}
+
+#[test]
+fn commandline_test_cursor_type() -> TestResult {
+    run_test("commandline get-cursor | describe", "int")
+}