test(alias): extra error context for cmd aliasing failure

Author: weihanglo

tests/testsuite/cargo_alias_config.rs

@@ -21,10 +21,13 @@ fn alias_incorrect_config_type() {
 
     p.cargo("b-cargo-test -v")
         .with_status(101)
-        .with_stderr_contains(
+        .with_stderr(
             "\
-[ERROR] invalid configuration for key `alias.b-cargo-test`
-expected a list, but found a integer for [..]",
+[ERROR] alias `b-cargo-test` has unresolvable definition: b-cargo-test
+
+Caused by:
+  invalid configuration for key `alias.b-cargo-test`
+  expected a list, but found a integer for [..]",
         )
         .run();
 }
@@ -45,8 +48,19 @@ fn alias_malformed_config_string() {
 
     p.cargo("b-cargo-test -v")
         .with_status(101)
-        .with_stderr_contains(
+        .with_stderr(
             "\
+error: alias `b-cargo-test` has unresolvable definition: b-cargo-test
+
+Caused by:
+  [..]
+
+Caused by:
+  [..]
+
+Caused by:
+  [..]
+
 Caused by:
   TOML parse error at line [..]
     |
@@ -75,8 +89,22 @@ fn alias_malformed_config_list() {
 
     p.cargo("b-cargo-test -v")
         .with_status(101)
-        .with_stderr_contains(
+        .with_stderr(
             "\
+[ERROR] alias `b-cargo-test` has unresolvable definition: b-cargo-test
+
+Caused by:
+  [..]
+
+Caused by:
+  [..]
+
+Caused by:
+  failed to parse key `alias`
+
+Caused by:
+  failed to parse key `b-cargo-test`
+
 Caused by:
   expected string but found integer in list
 ",
@@ -191,7 +219,7 @@ fn default_args_alias() {
 [WARNING] user-defined alias `echo` is shadowing an external subcommand found at: `[ROOT]/cargo-echo/target/debug/cargo-echo[EXE]`
 This was previously accepted but is being phased out; it will become a hard error in a future release.
 For more information, see issue #10049 <https://github.com/rust-lang/cargo/issues/10049>.
-error: alias echo has unresolvable recursive definition: echo -> echo
+[ERROR] alias `echo` has recursive definition: echo -> echo
 ",
         )
         .run();
@@ -203,7 +231,7 @@ error: alias echo has unresolvable recursive definition: echo -> echo
 [WARNING] user-defined alias `echo` is shadowing an external subcommand found at: `[ROOT]/cargo-echo/target/debug/cargo-echo[EXE]`
 This was previously accepted but is being phased out; it will become a hard error in a future release.
 For more information, see issue #10049 <https://github.com/rust-lang/cargo/issues/10049>.
-error: alias test-1 has unresolvable recursive definition: test-1 -> echo -> echo
+[ERROR] alias `test-1` has recursive definition: test-1 -> echo -> echo
 ",
         )
         .run();
@@ -239,14 +267,14 @@ fn corecursive_alias() {
     p.cargo("test-1")
         .with_status(101)
         .with_stderr(
-            "error: alias test-1 has unresolvable recursive definition: test-1 -> test-2 -> test-3 -> test-1",
+            "[ERROR] alias `test-1` has recursive definition: test-1 -> test-2 -> test-3 -> test-1",
         )
         .run();
 
     p.cargo("test-2")
         .with_status(101)
         .with_stderr(
-            "error: alias test-2 has unresolvable recursive definition: test-2 -> test-3 -> test-1 -> test-2",
+            "[ERROR] alias `test-2` has recursive definition: test-2 -> test-3 -> test-1 -> test-2",
         )
         .run();
 }