From 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 03:47:29 +0200
Subject: Adding upstream version 115.8.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 third_party/rust/cargo_metadata/tests/selftest.rs  | 163 ++++++
 .../rust/cargo_metadata/tests/test_samples.rs      | 647 +++++++++++++++++++++
 2 files changed, 810 insertions(+)
 create mode 100644 third_party/rust/cargo_metadata/tests/selftest.rs
 create mode 100644 third_party/rust/cargo_metadata/tests/test_samples.rs

(limited to 'third_party/rust/cargo_metadata/tests')

diff --git a/third_party/rust/cargo_metadata/tests/selftest.rs b/third_party/rust/cargo_metadata/tests/selftest.rs
new file mode 100644
index 0000000000..d6ab61832d
--- /dev/null
+++ b/third_party/rust/cargo_metadata/tests/selftest.rs
@@ -0,0 +1,163 @@
+use std::env::current_dir;
+use std::path::PathBuf;
+
+use semver::Version;
+
+use cargo_metadata::{CargoOpt, Error, MetadataCommand};
+use serde::Deserialize;
+
+#[derive(Debug, PartialEq, Eq, Deserialize)]
+struct TestPackageMetadata {
+    some_field: bool,
+    other_field: String,
+}
+
+#[test]
+fn metadata() {
+    let metadata = MetadataCommand::new().no_deps().exec().unwrap();
+
+    let this = &metadata.packages[0];
+    assert_eq!(this.name, "cargo_metadata");
+    assert_eq!(this.targets.len(), 3);
+
+    let lib = this
+        .targets
+        .iter()
+        .find(|t| t.name == "cargo_metadata")
+        .unwrap();
+    assert_eq!(lib.kind[0], "lib");
+    assert_eq!(lib.crate_types[0], "lib");
+
+    let selftest = this.targets.iter().find(|t| t.name == "selftest").unwrap();
+    assert_eq!(selftest.name, "selftest");
+    assert_eq!(selftest.kind[0], "test");
+    assert_eq!(selftest.crate_types[0], "bin");
+
+    let package_metadata = &metadata.packages[0]
+        .metadata
+        .as_object()
+        .expect("package.metadata must be a table.");
+    assert_eq!(package_metadata.len(), 1);
+
+    let value = package_metadata.get("cargo_metadata_test").unwrap();
+    let test_package_metadata: TestPackageMetadata = serde_json::from_value(value.clone()).unwrap();
+    assert_eq!(
+        test_package_metadata,
+        TestPackageMetadata {
+            some_field: true,
+            other_field: "foo".into(),
+        }
+    );
+}
+
+#[test]
+fn builder_interface() {
+    let _ = MetadataCommand::new()
+        .manifest_path("Cargo.toml")
+        .exec()
+        .unwrap();
+    let _ = MetadataCommand::new()
+        .manifest_path(String::from("Cargo.toml"))
+        .exec()
+        .unwrap();
+    let _ = MetadataCommand::new()
+        .manifest_path(PathBuf::from("Cargo.toml"))
+        .exec()
+        .unwrap();
+    let _ = MetadataCommand::new()
+        .manifest_path("Cargo.toml")
+        .no_deps()
+        .exec()
+        .unwrap();
+    let _ = MetadataCommand::new()
+        .manifest_path("Cargo.toml")
+        .features(CargoOpt::AllFeatures)
+        .exec()
+        .unwrap();
+    let _ = MetadataCommand::new()
+        .manifest_path("Cargo.toml")
+        .current_dir(current_dir().unwrap())
+        .exec()
+        .unwrap();
+}
+
+#[test]
+fn error1() {
+    match MetadataCommand::new().manifest_path("foo").exec() {
+        Err(Error::CargoMetadata { stderr }) => assert_eq!(
+            stderr.trim(),
+            "error: the manifest-path must be a path to a Cargo.toml file"
+        ),
+        _ => unreachable!(),
+    }
+}
+
+#[test]
+fn error2() {
+    match MetadataCommand::new()
+        .manifest_path("foo/Cargo.toml")
+        .exec()
+    {
+        Err(Error::CargoMetadata { stderr }) => assert_eq!(
+            stderr.trim(),
+            "error: manifest path `foo/Cargo.toml` does not exist"
+        ),
+        _ => unreachable!(),
+    }
+}
+
+#[test]
+fn cargo_path() {
+    match MetadataCommand::new()
+        .cargo_path("this does not exist")
+        .exec()
+    {
+        Err(Error::Io(e)) => assert_eq!(e.kind(), std::io::ErrorKind::NotFound),
+        _ => unreachable!(),
+    }
+}
+
+#[test]
+fn metadata_deps() {
+    std::env::set_var("CARGO_PROFILE", "3");
+    let metadata = MetadataCommand::new()
+        .manifest_path("Cargo.toml")
+        .exec()
+        .unwrap();
+    let this_id = metadata
+        .workspace_members
+        .first()
+        .expect("Did not find ourselves");
+    let this = &metadata[this_id];
+
+    assert_eq!(this.name, "cargo_metadata");
+
+    let workspace_packages = metadata.workspace_packages();
+    assert_eq!(workspace_packages.len(), 1);
+    assert_eq!(&workspace_packages[0].id, this_id);
+
+    let lib = this
+        .targets
+        .iter()
+        .find(|t| t.name == "cargo_metadata")
+        .unwrap();
+    assert_eq!(lib.kind[0], "lib");
+    assert_eq!(lib.crate_types[0], "lib");
+
+    let selftest = this.targets.iter().find(|t| t.name == "selftest").unwrap();
+    assert_eq!(selftest.name, "selftest");
+    assert_eq!(selftest.kind[0], "test");
+    assert_eq!(selftest.crate_types[0], "bin");
+
+    let dependencies = &this.dependencies;
+
+    let serde = dependencies
+        .iter()
+        .find(|dep| dep.name == "serde")
+        .expect("Did not find serde dependency");
+
+    assert_eq!(serde.kind, cargo_metadata::DependencyKind::Normal);
+    assert!(!serde.req.matches(&Version::parse("1.0.0").unwrap()));
+    assert!(serde.req.matches(&Version::parse("1.99.99").unwrap()));
+    assert!(!serde.req.matches(&Version::parse("2.0.0").unwrap()));
+}
diff --git a/third_party/rust/cargo_metadata/tests/test_samples.rs b/third_party/rust/cargo_metadata/tests/test_samples.rs
new file mode 100644
index 0000000000..3c747c595a
--- /dev/null
+++ b/third_party/rust/cargo_metadata/tests/test_samples.rs
@@ -0,0 +1,647 @@
+extern crate cargo_metadata;
+extern crate semver;
+#[macro_use]
+extern crate serde_json;
+
+use camino::Utf8PathBuf;
+use cargo_metadata::{CargoOpt, DependencyKind, Edition, Metadata, MetadataCommand};
+
+#[test]
+fn old_minimal() {
+    // Output from oldest supported version (1.24).
+    // This intentionally has as many null fields as possible.
+    // 1.8 is when metadata was introduced.
+    // Older versions not supported because the following are required:
+    // - `workspace_members` added in 1.13
+    // - `target_directory` added in 1.19
+    // - `workspace_root` added in 1.24
+    let json = r#"
+{
+  "packages": [
+    {
+      "name": "foo",
+      "version": "0.1.0",
+      "id": "foo 0.1.0 (path+file:///foo)",
+      "license": null,
+      "license_file": null,
+      "description": null,
+      "source": null,
+      "dependencies": [
+        {
+          "name": "somedep",
+          "source": null,
+          "req": "^1.0",
+          "kind": null,
+          "optional": false,
+          "uses_default_features": true,
+          "features": [],
+          "target": null
+        }
+      ],
+      "targets": [
+        {
+          "kind": [
+            "bin"
+          ],
+          "crate_types": [
+            "bin"
+          ],
+          "name": "foo",
+          "src_path": "/foo/src/main.rs"
+        }
+      ],
+      "features": {},
+      "manifest_path": "/foo/Cargo.toml"
+    }
+  ],
+  "workspace_members": [
+    "foo 0.1.0 (path+file:///foo)"
+  ],
+  "resolve": null,
+  "target_directory": "/foo/target",
+  "version": 1,
+  "workspace_root": "/foo"
+}
+"#;
+    let meta: Metadata = serde_json::from_str(json).unwrap();
+    assert_eq!(meta.packages.len(), 1);
+    let pkg = &meta.packages[0];
+    assert_eq!(pkg.name, "foo");
+    assert_eq!(pkg.version, semver::Version::parse("0.1.0").unwrap());
+    assert_eq!(pkg.authors.len(), 0);
+    assert_eq!(pkg.id.to_string(), "foo 0.1.0 (path+file:///foo)");
+    assert_eq!(pkg.description, None);
+    assert_eq!(pkg.license, None);
+    assert_eq!(pkg.license_file, None);
+    assert_eq!(pkg.default_run, None);
+    assert_eq!(pkg.rust_version, None);
+    assert_eq!(pkg.dependencies.len(), 1);
+    let dep = &pkg.dependencies[0];
+    assert_eq!(dep.name, "somedep");
+    assert_eq!(dep.source, None);
+    assert_eq!(dep.req, semver::VersionReq::parse("^1.0").unwrap());
+    assert_eq!(dep.kind, DependencyKind::Normal);
+    assert!(!dep.optional);
+    assert!(dep.uses_default_features);
+    assert_eq!(dep.features.len(), 0);
+    assert!(dep.target.is_none());
+    assert_eq!(dep.rename, None);
+    assert_eq!(dep.registry, None);
+    assert_eq!(pkg.targets.len(), 1);
+    let target = &pkg.targets[0];
+    assert_eq!(target.name, "foo");
+    assert_eq!(target.kind, vec!["bin"]);
+    assert_eq!(target.crate_types, vec!["bin"]);
+    assert_eq!(target.required_features.len(), 0);
+    assert_eq!(target.src_path, "/foo/src/main.rs");
+    assert_eq!(target.edition, Edition::E2015);
+    assert!(target.doctest);
+    assert!(target.test);
+    assert!(target.doc);
+    assert_eq!(pkg.features.len(), 0);
+    assert_eq!(pkg.manifest_path, "/foo/Cargo.toml");
+    assert_eq!(pkg.categories.len(), 0);
+    assert_eq!(pkg.keywords.len(), 0);
+    assert_eq!(pkg.readme, None);
+    assert_eq!(pkg.repository, None);
+    assert_eq!(pkg.homepage, None);
+    assert_eq!(pkg.documentation, None);
+    assert_eq!(pkg.edition, Edition::E2015);
+    assert_eq!(pkg.metadata, serde_json::Value::Null);
+    assert_eq!(pkg.links, None);
+    assert_eq!(pkg.publish, None);
+    assert_eq!(meta.workspace_members.len(), 1);
+    assert_eq!(
+        meta.workspace_members[0].to_string(),
+        "foo 0.1.0 (path+file:///foo)"
+    );
+    assert!(meta.resolve.is_none());
+    assert_eq!(meta.workspace_root, "/foo");
+    assert_eq!(meta.workspace_metadata, serde_json::Value::Null);
+    assert_eq!(meta.target_directory, "/foo/target");
+}
+
+macro_rules! sorted {
+    ($e:expr) => {{
+        let mut v = $e.clone();
+        v.sort();
+        v
+    }};
+}
+
+fn cargo_version() -> semver::Version {
+    let output = std::process::Command::new("cargo")
+        .arg("-V")
+        .output()
+        .expect("Failed to exec cargo.");
+    let out = std::str::from_utf8(&output.stdout)
+        .expect("invalid utf8")
+        .trim();
+    let split: Vec<&str> = out.split_whitespace().collect();
+    assert!(split.len() >= 2, "cargo -V output is unexpected: {}", out);
+    let mut ver = semver::Version::parse(split[1]).expect("cargo -V semver could not be parsed");
+    // Don't care about metadata, it is awkward to compare.
+    ver.pre = semver::Prerelease::EMPTY;
+    ver.build = semver::BuildMetadata::EMPTY;
+    ver
+}
+
+#[derive(serde::Deserialize, PartialEq, Eq, Debug)]
+struct WorkspaceMetadata {
+    testobject: TestObject,
+}
+
+#[derive(serde::Deserialize, PartialEq, Eq, Debug)]
+struct TestObject {
+    myvalue: String,
+}
+
+#[test]
+fn all_the_fields() {
+    // All the fields currently generated as of 1.60. This tries to exercise as
+    // much as possible.
+    let ver = cargo_version();
+    let minimum = semver::Version::parse("1.56.0").unwrap();
+    if ver < minimum {
+        // edition added in 1.30
+        // rename added in 1.31
+        // links added in 1.33
+        // doctest added in 1.37
+        // publish added in 1.39
+        // dep_kinds added in 1.41
+        // test added in 1.47
+        // homepage added in 1.49
+        // documentation added in 1.49
+        // doc added in 1.50
+        // path added in 1.51
+        // default_run added in 1.55
+        // rust_version added in 1.58
+        eprintln!("Skipping all_the_fields test, cargo {} is too old.", ver);
+        return;
+    }
+    let meta = MetadataCommand::new()
+        .manifest_path("tests/all/Cargo.toml")
+        .exec()
+        .unwrap();
+    assert_eq!(meta.workspace_root.file_name().unwrap(), "all");
+    assert_eq!(
+        serde_json::from_value::<WorkspaceMetadata>(meta.workspace_metadata).unwrap(),
+        WorkspaceMetadata {
+            testobject: TestObject {
+                myvalue: "abc".to_string()
+            }
+        }
+    );
+    assert_eq!(meta.workspace_members.len(), 1);
+    assert!(meta.workspace_members[0].to_string().starts_with("all"));
+
+    assert_eq!(meta.packages.len(), 9);
+    let all = meta.packages.iter().find(|p| p.name == "all").unwrap();
+    assert_eq!(all.version, semver::Version::parse("0.1.0").unwrap());
+    assert_eq!(all.authors, vec!["Jane Doe <user@example.com>"]);
+    assert!(all.id.to_string().starts_with("all"));
+    assert_eq!(all.description, Some("Package description.".to_string()));
+    assert_eq!(all.license, Some("MIT/Apache-2.0".to_string()));
+    assert_eq!(all.license_file, Some(Utf8PathBuf::from("LICENSE")));
+    assert!(all.license_file().unwrap().ends_with("tests/all/LICENSE"));
+    assert_eq!(all.publish, Some(vec![]));
+    assert_eq!(all.links, Some("foo".to_string()));
+    assert_eq!(all.default_run, Some("otherbin".to_string()));
+    if ver >= semver::Version::parse("1.58.0").unwrap() {
+        assert_eq!(
+            all.rust_version,
+            Some(semver::VersionReq::parse("1.56").unwrap())
+        );
+    }
+
+    assert_eq!(all.dependencies.len(), 8);
+    let bitflags = all
+        .dependencies
+        .iter()
+        .find(|d| d.name == "bitflags")
+        .unwrap();
+    assert_eq!(
+        bitflags.source,
+        Some("registry+https://github.com/rust-lang/crates.io-index".to_string())
+    );
+    assert!(bitflags.optional);
+    assert_eq!(bitflags.req, semver::VersionReq::parse("^1.0").unwrap());
+
+    let path_dep = all
+        .dependencies
+        .iter()
+        .find(|d| d.name == "path-dep")
+        .unwrap();
+    assert_eq!(path_dep.source, None);
+    assert_eq!(path_dep.kind, DependencyKind::Normal);
+    assert_eq!(path_dep.req, semver::VersionReq::parse("*").unwrap());
+    assert_eq!(
+        path_dep.path.as_ref().map(|p| p.ends_with("path-dep")),
+        Some(true),
+    );
+
+    all.dependencies
+        .iter()
+        .find(|d| d.name == "namedep")
+        .unwrap();
+
+    let featdep = all
+        .dependencies
+        .iter()
+        .find(|d| d.name == "featdep")
+        .unwrap();
+    assert_eq!(featdep.features, vec!["i128"]);
+    assert!(!featdep.uses_default_features);
+
+    let renamed = all
+        .dependencies
+        .iter()
+        .find(|d| d.name == "oldname")
+        .unwrap();
+    assert_eq!(renamed.rename, Some("newname".to_string()));
+
+    let devdep = all
+        .dependencies
+        .iter()
+        .find(|d| d.name == "devdep")
+        .unwrap();
+    assert_eq!(devdep.kind, DependencyKind::Development);
+
+    let bdep = all.dependencies.iter().find(|d| d.name == "bdep").unwrap();
+    assert_eq!(bdep.kind, DependencyKind::Build);
+
+    let windep = all
+        .dependencies
+        .iter()
+        .find(|d| d.name == "windep")
+        .unwrap();
+    assert_eq!(
+        windep.target.as_ref().map(|x| x.to_string()),
+        Some("cfg(windows)".to_string())
+    );
+
+    macro_rules! get_file_name {
+        ($v:expr) => {
+            all.targets
+                .iter()
+                .find(|t| t.src_path.file_name().unwrap() == $v)
+                .unwrap()
+        };
+    }
+    assert_eq!(all.targets.len(), 8);
+    let lib = get_file_name!("lib.rs");
+    assert_eq!(lib.name, "all");
+    assert_eq!(sorted!(lib.kind), vec!["cdylib", "rlib", "staticlib"]);
+    assert_eq!(
+        sorted!(lib.crate_types),
+        vec!["cdylib", "rlib", "staticlib"]
+    );
+    assert_eq!(lib.required_features.len(), 0);
+    assert_eq!(lib.edition, Edition::E2018);
+    assert!(lib.doctest);
+    assert!(lib.test);
+    assert!(lib.doc);
+
+    let main = get_file_name!("main.rs");
+    assert_eq!(main.crate_types, vec!["bin"]);
+    assert_eq!(main.kind, vec!["bin"]);
+    assert!(!main.doctest);
+    assert!(main.test);
+    assert!(main.doc);
+
+    let otherbin = get_file_name!("otherbin.rs");
+    assert_eq!(otherbin.edition, Edition::E2015);
+    assert!(!otherbin.doc);
+
+    let reqfeat = get_file_name!("reqfeat.rs");
+    assert_eq!(reqfeat.required_features, vec!["feat2"]);
+
+    let ex1 = get_file_name!("ex1.rs");
+    assert_eq!(ex1.kind, vec!["example"]);
+    assert!(!ex1.test);
+
+    let t1 = get_file_name!("t1.rs");
+    assert_eq!(t1.kind, vec!["test"]);
+
+    let b1 = get_file_name!("b1.rs");
+    assert_eq!(b1.kind, vec!["bench"]);
+
+    let build = get_file_name!("build.rs");
+    assert_eq!(build.kind, vec!["custom-build"]);
+
+    if ver >= semver::Version::parse("1.60.0").unwrap() {
+        // 1.60 now reports optional dependencies within the features table
+        assert_eq!(all.features.len(), 4);
+        assert_eq!(all.features["bitflags"], vec!["dep:bitflags"]);
+    } else {
+        assert_eq!(all.features.len(), 3);
+    }
+    assert_eq!(all.features["feat1"].len(), 0);
+    assert_eq!(all.features["feat2"].len(), 0);
+    assert_eq!(sorted!(all.features["default"]), vec!["bitflags", "feat1"]);
+
+    assert!(all.manifest_path.ends_with("all/Cargo.toml"));
+    assert_eq!(all.categories, vec!["command-line-utilities"]);
+    assert_eq!(all.keywords, vec!["cli"]);
+    assert_eq!(all.readme, Some(Utf8PathBuf::from("README.md")));
+    assert!(all.readme().unwrap().ends_with("tests/all/README.md"));
+    assert_eq!(
+        all.repository,
+        Some("https://github.com/oli-obk/cargo_metadata/".to_string())
+    );
+    assert_eq!(
+        all.homepage,
+        Some("https://github.com/oli-obk/cargo_metadata/".to_string())
+    );
+    assert_eq!(
+        all.documentation,
+        Some("https://docs.rs/cargo_metadata/".to_string())
+    );
+    assert_eq!(all.edition, Edition::E2018);
+    assert_eq!(
+        all.metadata,
+        json!({
+            "docs": {
+                "rs": {
+                    "all-features": true,
+                    "default-target": "x86_64-unknown-linux-gnu",
+                    "rustc-args": ["--example-rustc-arg"]
+                }
+            }
+        })
+    );
+
+    let resolve = meta.resolve.as_ref().unwrap();
+    assert!(resolve
+        .root
+        .as_ref()
+        .unwrap()
+        .to_string()
+        .starts_with("all"));
+
+    assert_eq!(resolve.nodes.len(), 9);
+    let path_dep = resolve
+        .nodes
+        .iter()
+        .find(|n| n.id.to_string().starts_with("path-dep"))
+        .unwrap();
+    assert_eq!(path_dep.deps.len(), 0);
+    assert_eq!(path_dep.dependencies.len(), 0);
+    assert_eq!(path_dep.features.len(), 0);
+
+    let bitflags = resolve
+        .nodes
+        .iter()
+        .find(|n| n.id.to_string().starts_with("bitflags"))
+        .unwrap();
+    assert_eq!(bitflags.features, vec!["default"]);
+
+    let featdep = resolve
+        .nodes
+        .iter()
+        .find(|n| n.id.to_string().starts_with("featdep"))
+        .unwrap();
+    assert_eq!(featdep.features, vec!["i128"]);
+
+    let all = resolve
+        .nodes
+        .iter()
+        .find(|n| n.id.to_string().starts_with("all"))
+        .unwrap();
+    assert_eq!(all.dependencies.len(), 8);
+    assert_eq!(all.deps.len(), 8);
+    let newname = all.deps.iter().find(|d| d.name == "newname").unwrap();
+    assert!(newname.pkg.to_string().starts_with("oldname"));
+    // Note the underscore here.
+    let path_dep = all.deps.iter().find(|d| d.name == "path_dep").unwrap();
+    assert!(path_dep.pkg.to_string().starts_with("path-dep"));
+    assert_eq!(path_dep.dep_kinds.len(), 1);
+    let kind = &path_dep.dep_kinds[0];
+    assert_eq!(kind.kind, DependencyKind::Normal);
+    assert!(kind.target.is_none());
+
+    let namedep = all
+        .deps
+        .iter()
+        .find(|d| d.name == "different_name")
+        .unwrap();
+    assert!(namedep.pkg.to_string().starts_with("namedep"));
+    assert_eq!(sorted!(all.features), vec!["bitflags", "default", "feat1"]);
+
+    let bdep = all.deps.iter().find(|d| d.name == "bdep").unwrap();
+    assert_eq!(bdep.dep_kinds.len(), 1);
+    let kind = &bdep.dep_kinds[0];
+    assert_eq!(kind.kind, DependencyKind::Build);
+    assert!(kind.target.is_none());
+
+    let devdep = all.deps.iter().find(|d| d.name == "devdep").unwrap();
+    assert_eq!(devdep.dep_kinds.len(), 1);
+    let kind = &devdep.dep_kinds[0];
+    assert_eq!(kind.kind, DependencyKind::Development);
+    assert!(kind.target.is_none());
+
+    let windep = all.deps.iter().find(|d| d.name == "windep").unwrap();
+    assert_eq!(windep.dep_kinds.len(), 1);
+    let kind = &windep.dep_kinds[0];
+    assert_eq!(kind.kind, DependencyKind::Normal);
+    assert_eq!(
+        kind.target.as_ref().map(|x| x.to_string()),
+        Some("cfg(windows)".to_string())
+    );
+}
+
+#[test]
+fn alt_registry() {
+    // This is difficult to test (would need to set up a custom index).
+    // Just manually check the JSON is handled.
+    let json = r#"
+{
+  "packages": [
+    {
+      "name": "alt",
+      "version": "0.1.0",
+      "id": "alt 0.1.0 (path+file:///alt)",
+      "source": null,
+      "dependencies": [
+        {
+          "name": "alt2",
+          "source": "registry+https://example.com",
+          "req": "^0.1",
+          "kind": null,
+          "rename": null,
+          "optional": false,
+          "uses_default_features": true,
+          "features": [],
+          "target": null,
+          "registry": "https://example.com"
+        }
+      ],
+      "targets": [
+        {
+          "kind": [
+            "lib"
+          ],
+          "crate_types": [
+            "lib"
+          ],
+          "name": "alt",
+          "src_path": "/alt/src/lib.rs",
+          "edition": "2018"
+        }
+      ],
+      "features": {},
+      "manifest_path": "/alt/Cargo.toml",
+      "metadata": null,
+      "authors": [],
+      "categories": [],
+      "keywords": [],
+      "readme": null,
+      "repository": null,
+      "edition": "2018",
+      "links": null
+    }
+  ],
+  "workspace_members": [
+    "alt 0.1.0 (path+file:///alt)"
+  ],
+  "resolve": null,
+  "target_directory": "/alt/target",
+  "version": 1,
+  "workspace_root": "/alt"
+}
+"#;
+    let meta: Metadata = serde_json::from_str(json).unwrap();
+    assert_eq!(meta.packages.len(), 1);
+    let alt = &meta.packages[0];
+    let deps = &alt.dependencies;
+    assert_eq!(deps.len(), 1);
+    let dep = &deps[0];
+    assert_eq!(dep.registry, Some("https://example.com".to_string()));
+}
+
+#[test]
+fn current_dir() {
+    let meta = MetadataCommand::new()
+        .current_dir("tests/all/namedep")
+        .exec()
+        .unwrap();
+    let namedep = meta.packages.iter().find(|p| p.name == "namedep").unwrap();
+    assert!(namedep.name.starts_with("namedep"));
+}
+
+#[test]
+fn parse_stream_is_robust() {
+    // Proc macros can print stuff to stdout, which naturally breaks JSON messages.
+    // Let's check that we don't die horribly in this case, and report an error.
+    let json_output = r##"{"reason":"compiler-artifact","package_id":"chatty 0.1.0 (path+file:///chatty-macro/chatty)","manifest_path":"chatty-macro/Cargo.toml","target":{"kind":["proc-macro"],"crate_types":["proc-macro"],"name":"chatty","src_path":"/chatty-macro/chatty/src/lib.rs","edition":"2018","doctest":true},"profile":{"opt_level":"0","debuginfo":2,"debug_assertions":true,"overflow_checks":true,"test":false},"features":[],"filenames":["/chatty-macro/target/debug/deps/libchatty-f2adcff24cdf3bb2.so"],"executable":null,"fresh":false}
+Evil proc macro was here!
+{"reason":"compiler-artifact","package_id":"chatty-macro 0.1.0 (path+file:///chatty-macro)","manifest_path":"chatty-macro/Cargo.toml","target":{"kind":["lib"],"crate_types":["lib"],"name":"chatty-macro","src_path":"/chatty-macro/src/lib.rs","edition":"2018","doctest":true},"profile":{"opt_level":"0","debuginfo":2,"debug_assertions":true,"overflow_checks":true,"test":false},"features":[],"filenames":["/chatty-macro/target/debug/libchatty_macro.rlib","/chatty-macro/target/debug/deps/libchatty_macro-cb5956ed52a11fb6.rmeta"],"executable":null,"fresh":false}
+"##;
+    let mut n_messages = 0;
+    let mut text = String::new();
+    for message in cargo_metadata::Message::parse_stream(json_output.as_bytes()) {
+        let message = message.unwrap();
+        match message {
+            cargo_metadata::Message::TextLine(line) => text = line,
+            _ => n_messages += 1,
+        }
+    }
+    assert_eq!(n_messages, 2);
+    assert_eq!(text, "Evil proc macro was here!");
+}
+
+#[test]
+fn advanced_feature_configuration() {
+    fn build_features<F: FnOnce(&mut MetadataCommand) -> &mut MetadataCommand>(
+        func: F,
+    ) -> Vec<String> {
+        let mut meta = MetadataCommand::new();
+        let meta = meta.manifest_path("tests/all/Cargo.toml");
+
+        let meta = func(meta);
+        let meta = meta.exec().unwrap();
+
+        let resolve = meta.resolve.as_ref().unwrap();
+
+        let all = resolve
+            .nodes
+            .iter()
+            .find(|n| n.id.to_string().starts_with("all"))
+            .unwrap();
+
+        all.features.clone()
+    }
+
+    // Default behavior; tested above
+    let default_features = build_features(|meta| meta);
+    assert_eq!(
+        sorted!(default_features),
+        vec!["bitflags", "default", "feat1"]
+    );
+
+    // Manually specify the same default features
+    let manual_features = build_features(|meta| {
+        meta.features(CargoOpt::NoDefaultFeatures)
+            .features(CargoOpt::SomeFeatures(vec![
+                "feat1".into(),
+                "bitflags".into(),
+            ]))
+    });
+    assert_eq!(sorted!(manual_features), vec!["bitflags", "feat1"]);
+
+    // Multiple SomeFeatures is same as one longer SomeFeatures
+    let manual_features = build_features(|meta| {
+        meta.features(CargoOpt::NoDefaultFeatures)
+            .features(CargoOpt::SomeFeatures(vec!["feat1".into()]))
+            .features(CargoOpt::SomeFeatures(vec!["feat2".into()]))
+    });
+    assert_eq!(sorted!(manual_features), vec!["feat1", "feat2"]);
+
+    // No features + All features == All features
+    let all_features = build_features(|meta| {
+        meta.features(CargoOpt::AllFeatures)
+            .features(CargoOpt::NoDefaultFeatures)
+    });
+    assert_eq!(
+        sorted!(all_features),
+        vec!["bitflags", "default", "feat1", "feat2"]
+    );
+
+    // The '--all-features' flag supersedes other feature flags
+    let all_flag_variants = build_features(|meta| {
+        meta.features(CargoOpt::SomeFeatures(vec!["feat2".into()]))
+            .features(CargoOpt::NoDefaultFeatures)
+            .features(CargoOpt::AllFeatures)
+    });
+    assert_eq!(sorted!(all_flag_variants), sorted!(all_features));
+}
+
+#[test]
+fn depkind_to_string() {
+    assert_eq!(DependencyKind::Normal.to_string(), "normal");
+    assert_eq!(DependencyKind::Development.to_string(), "dev");
+    assert_eq!(DependencyKind::Build.to_string(), "build");
+    assert_eq!(DependencyKind::Unknown.to_string(), "Unknown");
+}
+
+#[test]
+fn basic_workspace_root_package_exists() {
+    // First try with dependencies
+    let meta = MetadataCommand::new()
+        .manifest_path("tests/basic_workspace/Cargo.toml")
+        .exec()
+        .unwrap();
+    assert_eq!(meta.root_package().unwrap().name, "ex_bin");
+    // Now with no_deps, it should still work exactly the same
+    let meta = MetadataCommand::new()
+        .manifest_path("tests/basic_workspace/Cargo.toml")
+        .no_deps()
+        .exec()
+        .unwrap();
+    assert_eq!(
+        meta.root_package()
+            .expect("workspace root still exists when no_deps used")
+            .name,
+        "ex_bin"
+    );
+}
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