Clarify the function of the test flag

Author: heisen-li

src/bin/cargo/commands/test.rs

@@ -38,12 +38,12 @@ pub fn cli() -> Command {
         )
         .arg_targets_all(
             "Test only this package's library unit tests",
-            "Test only the specified binary",
-            "Test all binaries",
+            "Test only the specified binary's unit tests",
+            "Test all binaries's unit tests",
             "Test only the specified example",
             "Test all examples",
-            "Test only the specified test target",
-            "Test all test targets",
+            "Test only the specified target's integration tests",
+            "Test all test targets's integration tests and library unit tests",
             "Test only the specified bench target",
             "Test all bench targets",
             "Test all targets (does not include doctests)",

tests/testsuite/cargo_test/help/stdout.log

@@ -29,12 +29,12 @@ Package Selection:
 
 Target Selection:
       --lib               Test only this package's library unit tests
-      --bins              Test all binaries
-      --bin [<NAME>]      Test only the specified binary
+      --bins              Test all binaries's unit tests
+      --bin [<NAME>]      Test only the specified binary's unit tests
       --examples          Test all examples
       --example [<NAME>]  Test only the specified example
-      --tests             Test all test targets
-      --test [<NAME>]     Test only the specified test target
+      --tests             Test all test targets's integration tests and library unit tests
+      --test [<NAME>]     Test only the specified target's integration tests
       --benches           Test all bench targets
       --bench [<NAME>]    Test only the specified bench target
       --all-targets       Test all targets (does not include doctests)