Fix typos and use more idiomatic assertions (#7755)

I have changed `assert!(a == b)` calls to `assert_eq!(a, b)`, which give
better error messages. Similarly for `assert!(a != b)` and
`assert_ne!(a, b)`. Basically all instances were comparing primitives
(string slices or integers), so there is no loss of generality from
special-case macros,

I have also fixed a number of typos in comments, variable names, and a
few user-facing messages.

crates/nu-command/tests/commands/for_.rs

@@ -9,7 +9,7 @@ fn for_auto_print_in_each_iteration() {
             echo 1
         }"#
     );
-    // Note: nu! macro auto repalce "\n" and "\r\n" with ""
+    // Note: nu! macro auto replace "\n" and "\r\n" with ""
     // so our output will be `11`
     // that's ok, our main concern is it auto print value in each iteration.
     assert_eq!(actual.out, "11");
@@ -25,7 +25,7 @@ fn for_break_on_external_failed() {
             nu --testbin fail
         }"#
     );
-    // Note: nu! macro auto repalce "\n" and "\r\n" with ""
+    // Note: nu! macro auto replace "\n" and "\r\n" with ""
     // so our output will be `1`
     assert_eq!(actual.out, "1");
 }

crates/nu-command/tests/commands/loop_.rs

@@ -15,7 +15,7 @@ fn loop_auto_print_in_each_iteration() {
             echo 1
         }"#
     );
-    // Note: nu! macro auto repalce "\n" and "\r\n" with ""
+    // Note: nu! macro auto replace "\n" and "\r\n" with ""
     // so our output will be `111`
     // that's ok, our main concern is it auto print value in each iteration.
     assert_eq!(actual.out, "111");
@@ -37,7 +37,7 @@ fn loop_break_on_external_failed() {
             nu --testbin fail;
         }"#
     );
-    // Note: nu! macro auto repalce "\n" and "\r\n" with ""
+    // Note: nu! macro auto replace "\n" and "\r\n" with ""
     // so our output will be `1`.
     assert_eq!(actual.out, "1");
 }

crates/nu-command/tests/commands/ls.rs

@@ -479,25 +479,25 @@ fn can_list_system_folder() {
         cwd: "C:\\Windows\\System32", pipeline(
         r#"ls Configuration* | where name == "Configuration" | get size.0"#
     ));
-    assert!(file_size.out.trim() != "");
+    assert_ne!(file_size.out.trim(), "");
 
     let file_modified = nu!(
         cwd: "C:\\Windows\\System32", pipeline(
         r#"ls Configuration* | where name == "Configuration" | get modified.0"#
     ));
-    assert!(file_modified.out.trim() != "");
+    assert_ne!(file_modified.out.trim(), "");
 
     let file_accessed = nu!(
         cwd: "C:\\Windows\\System32", pipeline(
         r#"ls -l Configuration* | where name == "Configuration" | get accessed.0"#
     ));
-    assert!(file_accessed.out.trim() != "");
+    assert_ne!(file_accessed.out.trim(), "");
 
     let file_created = nu!(
         cwd: "C:\\Windows\\System32", pipeline(
         r#"ls -l Configuration* | where name == "Configuration" | get created.0"#
     ));
-    assert!(file_created.out.trim() != "");
+    assert_ne!(file_created.out.trim(), "");
 
     let ls_with_filter = nu!(
         cwd: "C:\\Windows\\System32", pipeline(

crates/nu-command/tests/commands/network/port.rs

@@ -41,7 +41,7 @@ fn port_with_already_usage() {
             return;
         }
     }
-    panic!("already check port report AddrInUse for seveval times, but still failed.");
+    panic!("already check port report AddrInUse for several times, but still failed.");
 }
 
 #[test]

crates/nu-command/tests/commands/parse.rs

@@ -34,7 +34,7 @@ mod simple {
     }
 
     #[test]
-    fn double_open_curly_evalutes_to_a_single_curly() {
+    fn double_open_curly_evaluates_to_a_single_curly() {
         Playground::setup("parse_test_regex_2", |dirs, _sandbox| {
             let actual = nu!(
                 cwd: dirs.test(), pipeline(

crates/nu-command/tests/commands/table.rs

@@ -41,9 +41,9 @@ fn table_expand_0() {
     );
 }
 
-// I am not sure whether the test is platform depent, cause we don't set a term_width on our own
+// I am not sure whether the test is platform dependent, cause we don't set a term_width on our own
 #[test]
-fn table_expand_exeed_overlap_0() {
+fn table_expand_exceed_overlap_0() {
     // no expand
 
     let actual = nu!(r#"[[a b, c]; [xxxxxxxxxxxxxxxxxxxxxx 2 3] [4 5 [1 2 3]]] | table --expand"#);

crates/nu-command/tests/commands/while_.rs

@@ -16,7 +16,7 @@ fn while_auto_print_in_each_iteration() {
         cwd: ".",
         "mut total = 0; while $total < 2 { $total = $total + 1; echo 1 }"
     );
-    // Note: nu! macro auto repalce "\n" and "\r\n" with ""
+    // Note: nu! macro auto replace "\n" and "\r\n" with ""
     // so our output will be `11`
     // that's ok, our main concern is it auto print value in each iteration.
     assert_eq!(actual.out, "11");
@@ -28,7 +28,7 @@ fn while_break_on_external_failed() {
         cwd: ".",
         "mut total = 0; while $total < 2 { $total = $total + 1; echo 1; nu --testbin fail }"
     );
-    // Note: nu! macro auto repalce "\n" and "\r\n" with ""
+    // Note: nu! macro auto replace "\n" and "\r\n" with ""
     // so our output will be `1`
     assert_eq!(actual.out, "1");
 }