Emit the test field in cargo metadata

src/cargo/core/manifest.rs

@@ -263,6 +263,8 @@ struct SerializedTarget<'a> {
     #[serde(rename = "required-features", skip_serializing_if = "Option::is_none")]
     required_features: Option<Vec<&'a str>>,
     doctest: bool,
+    /// Whether tests should be run for the target (`test` field in `Cargo.toml`)
+    test: bool,
 }
 
 impl ser::Serialize for Target {
@@ -283,6 +285,7 @@ impl ser::Serialize for Target {
                 .required_features()
                 .map(|rf| rf.iter().map(|s| &**s).collect()),
             doctest: self.doctested() && self.doctestable(),
+            test: self.tested(),
         }
         .serialize(s)
     }

src/doc/man/cargo-metadata.adoc

@@ -134,7 +134,10 @@ The output has the following format:
                     /* Whether or not this target has doc tests enabled, and
                        the target is compatible with doc testing.
                     */
-                    "doctest": false
+                    "doctest": false,
+                    /* Whether or not this target should be built and run with `--test`
+                    */
+                    "test": true
                 }
             ],
             /* Set of features defined for the package.

src/doc/man/generated/cargo-metadata.html

@@ -141,7 +141,10 @@ <h2 id="cargo_metadata_output_format">OUTPUT FORMAT</h2>
                     /* Whether or not this target has doc tests enabled, and
                        the target is compatible with doc testing.
                     */
-                    "doctest": false
+                    "doctest": false,
+                    /* Whether or not this target should be built and run with `--test`
+                    */
+                    "test": true
                 }
             ],
             /* Set of features defined for the package.
@@ -514,4 +517,4 @@ <h2 id="cargo_metadata_see_also">SEE ALSO</h2>
 <p><a href="index.html">cargo(1)</a></p>
 </div>
 </div>
-</div>
+</div>

src/doc/src/reference/external-tools.md

@@ -142,7 +142,8 @@ following structure:
         "name": "my-package",
         "src_path": "/path/to/my-package/src/lib.rs",
         "edition": "2018",
-        "doctest": true
+        "doctest": true,
+        "test": true
     },
     /* The profile indicates which compiler settings were used. */
     "profile": {

src/doc/src/reference/unstable.md

@@ -694,6 +694,7 @@ The following is a description of the JSON structure:
         "name": "my-package",
         "src_path": "/path/to/my-package/src/lib.rs",
         "edition": "2018",
+        "test": true,
         "doctest": true
       },
       /* The profile settings for this unit.

src/etc/man/cargo-metadata.1

@@ -155,7 +155,11 @@ The output has the following format:
                     /* Whether or not this target has doc tests enabled, and
                        the target is compatible with doc testing.
                     */
-                    "doctest": false
+                    "doctest": false,
+                    /* Whether or not this target has the `test` field set in the manifest,
+                       causing it to be compiled with `--test`.
+                    */
+                    "test": true
                 }
             ],
             /* Set of features defined for the package.

tests/testsuite/bench.rs

@@ -595,7 +595,7 @@ fn bench_autodiscover_2015() {
                 version = "0.0.1"
                 authors = []
                 edition = "2015"
-                
+
                 [features]
                 magic = []
 
@@ -1628,7 +1628,8 @@ fn json_artifact_includes_executable_for_benchmark() {
                     "doctest": false,
                     "edition": "2015",
                     "name": "benchmark",
-                    "src_path": "[..]/foo/benches/benchmark.rs"
+                    "src_path": "[..]/foo/benches/benchmark.rs",
+                    "test": false
                 }
             }
 

tests/testsuite/build.rs

@@ -3142,7 +3142,8 @@ fn compiler_json_error_format() {
             "doctest": false,
             "edition": "2015",
             "name":"build-script-build",
-            "src_path":"[..]build.rs"
+            "src_path":"[..]build.rs",
+            "test": false
         },
         "profile": {
             "debug_assertions": true,
@@ -3166,7 +3167,8 @@ fn compiler_json_error_format() {
             "doctest": true,
             "edition": "2015",
             "name":"bar",
-            "src_path":"[..]lib.rs"
+            "src_path":"[..]lib.rs",
+            "test": true
         },
         "message":"{...}"
     }
@@ -3189,7 +3191,8 @@ fn compiler_json_error_format() {
             "doctest": true,
             "edition": "2015",
             "name":"bar",
-            "src_path":"[..]lib.rs"
+            "src_path":"[..]lib.rs",
+            "test": true
         },
         "filenames":[
             "[..].rlib",
@@ -3217,7 +3220,8 @@ fn compiler_json_error_format() {
             "doctest": false,
             "edition": "2015",
             "name":"foo",
-            "src_path":"[..]main.rs"
+            "src_path":"[..]main.rs",
+            "test": true
         },
         "message":"{...}"
     }
@@ -3231,7 +3235,8 @@ fn compiler_json_error_format() {
             "doctest": false,
             "edition": "2015",
             "name":"foo",
-            "src_path":"[..]main.rs"
+            "src_path":"[..]main.rs",
+            "test": true
         },
         "profile": {
             "debug_assertions": true,
@@ -3299,7 +3304,8 @@ fn message_format_json_forward_stderr() {
             "doctest": false,
             "edition": "2015",
             "name":"foo",
-            "src_path":"[..]"
+            "src_path":"[..]",
+            "test": true
         },
         "message":"{...}"
     }
@@ -3313,7 +3319,8 @@ fn message_format_json_forward_stderr() {
             "doctest": false,
             "edition": "2015",
             "name":"foo",
-            "src_path":"[..]"
+            "src_path":"[..]",
+            "test": true
         },
         "profile":{
             "debug_assertions":false,

tests/testsuite/metabuild.rs

@@ -701,7 +701,8 @@ fn metabuild_json_artifact() {
       "custom-build"
     ],
     "name": "metabuild-foo",
-    "src_path": "[..]/foo/target/.metabuild/metabuild-foo-[..].rs"
+    "src_path": "[..]/foo/target/.metabuild/metabuild-foo-[..].rs",
+    "test": false
   }
 }
 
@@ -750,7 +751,8 @@ fn metabuild_failed_build_json() {
       "custom-build"
     ],
     "name": "metabuild-foo",
-    "src_path": null
+    "src_path": null,
+    "test": false
   }
 }
 "#,