[cargo.git] / tests / testsuite / patch.rs

//! Tests for `[patch]` table source replacement.

use cargo_test_support::git;
use cargo_test_support::paths;
use cargo_test_support::registry::{self, Package};
use cargo_test_support::{basic_manifest, project};
use std::fs;

#[cargo_test]
fn replace() {
    Package::new("bar", "0.1.0").publish();
    Package::new("baz", "0.1.0")
        .file(
            "src/lib.rs",
            "extern crate bar; pub fn baz() { bar::bar(); }",
        )
        .dep("bar", "0.1.0")
        .publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.0.1"
                authors = []

                [dependencies]
                bar = "0.1.0"
                baz = "0.1.0"

                [patch.crates-io]
                bar = { path = "bar" }
            "#,
        )
        .file(
            "src/lib.rs",
            "
            extern crate bar;
            extern crate baz;
            pub fn bar() {
                bar::bar();
                baz::baz();
            }
        ",
        )
        .file("bar/Cargo.toml", &basic_manifest("bar", "0.1.0"))
        .file("bar/src/lib.rs", "pub fn bar() {}")
        .build();

    p.cargo("build")
        .with_stderr(
            "\
[UPDATING] `[ROOT][..]` index
[DOWNLOADING] crates ...
[DOWNLOADED] baz v0.1.0 ([..])
[COMPILING] bar v0.1.0 ([CWD]/bar)
[COMPILING] baz v0.1.0
[COMPILING] foo v0.0.1 ([CWD])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
        )
        .run();

    p.cargo("build").with_stderr("[FINISHED] [..]").run();
}

#[cargo_test]
fn nonexistent() {
    Package::new("baz", "0.1.0").publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.0.1"
                authors = []

                [dependencies]
                bar = "0.1.0"

                [patch.crates-io]
                bar = { path = "bar" }
            "#,
        )
        .file(
            "src/lib.rs",
            "extern crate bar; pub fn foo() { bar::bar(); }",
        )
        .file("bar/Cargo.toml", &basic_manifest("bar", "0.1.0"))
        .file("bar/src/lib.rs", "pub fn bar() {}")
        .build();

    p.cargo("build")
        .with_stderr(
            "\
[UPDATING] `[ROOT][..]` index
[COMPILING] bar v0.1.0 ([CWD]/bar)
[COMPILING] foo v0.0.1 ([CWD])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
        )
        .run();
    p.cargo("build").with_stderr("[FINISHED] [..]").run();
}

#[cargo_test]
fn patch_git() {
    let bar = git::repo(&paths::root().join("override"))
        .file("Cargo.toml", &basic_manifest("bar", "0.1.0"))
        .file("src/lib.rs", "")
        .build();

    let p = project()
        .file(
            "Cargo.toml",
            &format!(
                r#"
                    [package]
                    name = "foo"
                    version = "0.0.1"
                    authors = []

                    [dependencies]
                    bar = {{ git = '{}' }}

                    [patch.'{0}']
                    bar = {{ path = "bar" }}
                "#,
                bar.url()
            ),
        )
        .file(
            "src/lib.rs",
            "extern crate bar; pub fn foo() { bar::bar(); }",
        )
        .file("bar/Cargo.toml", &basic_manifest("bar", "0.1.0"))
        .file("bar/src/lib.rs", "pub fn bar() {}")
        .build();

    p.cargo("build")
        .with_stderr(
            "\
[UPDATING] git repository `file://[..]`
[COMPILING] bar v0.1.0 ([CWD]/bar)
[COMPILING] foo v0.0.1 ([CWD])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
        )
        .run();
    p.cargo("build").with_stderr("[FINISHED] [..]").run();
}

#[cargo_test]
fn patch_to_git() {
    let bar = git::repo(&paths::root().join("override"))
        .file("Cargo.toml", &basic_manifest("bar", "0.1.0"))
        .file("src/lib.rs", "pub fn bar() {}")
        .build();

    Package::new("bar", "0.1.0").publish();

    let p = project()
        .file(
            "Cargo.toml",
            &format!(
                r#"
                    [package]
                    name = "foo"
                    version = "0.0.1"
                    authors = []

                    [dependencies]
                    bar = "0.1"

                    [patch.crates-io]
                    bar = {{ git = '{}' }}
                "#,
                bar.url()
            ),
        )
        .file(
            "src/lib.rs",
            "extern crate bar; pub fn foo() { bar::bar(); }",
        )
        .build();

    p.cargo("build")
        .with_stderr(
            "\
[UPDATING] git repository `file://[..]`
[UPDATING] `[ROOT][..]` index
[COMPILING] bar v0.1.0 (file://[..])
[COMPILING] foo v0.0.1 ([CWD])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
        )
        .run();
    p.cargo("build").with_stderr("[FINISHED] [..]").run();
}

#[cargo_test]
fn unused() {
    Package::new("bar", "0.1.0").publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.0.1"
                authors = []

                [dependencies]
                bar = "0.1.0"

                [patch.crates-io]
                bar = { path = "bar" }
            "#,
        )
        .file("src/lib.rs", "")
        .file("bar/Cargo.toml", &basic_manifest("bar", "0.2.0"))
        .file("bar/src/lib.rs", "not rust code")
        .build();

    p.cargo("build")
        .with_stderr(
            "\
[UPDATING] `[ROOT][..]` index
[WARNING] Patch `bar v0.2.0 ([CWD]/bar)` was not used in the crate graph.
[..]
[..]
[..]
[..]
[DOWNLOADING] crates ...
[DOWNLOADED] bar v0.1.0 [..]
[COMPILING] bar v0.1.0
[COMPILING] foo v0.0.1 ([CWD])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
        )
        .run();
    p.cargo("build")
        .with_stderr(
            "\
[WARNING] Patch `bar v0.2.0 ([CWD]/bar)` was not used in the crate graph.
[..]
[..]
[..]
[..]
[FINISHED] [..]
",
        )
        .run();

    // unused patch should be in the lock file
    let lock = p.read_lockfile();
    let toml: toml::Value = toml::from_str(&lock).unwrap();
    assert_eq!(toml["patch"]["unused"].as_array().unwrap().len(), 1);
    assert_eq!(toml["patch"]["unused"][0]["name"].as_str(), Some("bar"));
    assert_eq!(
        toml["patch"]["unused"][0]["version"].as_str(),
        Some("0.2.0")
    );
}

#[cargo_test]
fn unused_git() {
    Package::new("bar", "0.1.0").publish();

    let foo = git::repo(&paths::root().join("override"))
        .file("Cargo.toml", &basic_manifest("bar", "0.2.0"))
        .file("src/lib.rs", "")
        .build();

    let p = project()
        .file(
            "Cargo.toml",
            &format!(
                r#"
                    [package]
                    name = "foo"
                    version = "0.0.1"
                    authors = []

                    [dependencies]
                    bar = "0.1"

                    [patch.crates-io]
                    bar = {{ git = '{}' }}
                "#,
                foo.url()
            ),
        )
        .file("src/lib.rs", "")
        .build();

    p.cargo("build")
        .with_stderr(
            "\
[UPDATING] git repository `file://[..]`
[UPDATING] `[ROOT][..]` index
[WARNING] Patch `bar v0.2.0 ([..])` was not used in the crate graph.
[..]
[..]
[..]
[..]
[DOWNLOADING] crates ...
[DOWNLOADED] bar v0.1.0 [..]
[COMPILING] bar v0.1.0
[COMPILING] foo v0.0.1 ([CWD])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
        )
        .run();
    p.cargo("build")
        .with_stderr(
            "\
[WARNING] Patch `bar v0.2.0 ([..])` was not used in the crate graph.
[..]
[..]
[..]
[..]
[FINISHED] [..]
",
        )
        .run();
}

#[cargo_test]
fn add_patch() {
    Package::new("bar", "0.1.0").publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.0.1"
                authors = []

                [dependencies]
                bar = "0.1.0"
            "#,
        )
        .file("src/lib.rs", "")
        .file("bar/Cargo.toml", &basic_manifest("bar", "0.1.0"))
        .file("bar/src/lib.rs", r#""#)
        .build();

    p.cargo("build")
        .with_stderr(
            "\
[UPDATING] `[ROOT][..]` index
[DOWNLOADING] crates ...
[DOWNLOADED] bar v0.1.0 [..]
[COMPILING] bar v0.1.0
[COMPILING] foo v0.0.1 ([CWD])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
        )
        .run();
    p.cargo("build").with_stderr("[FINISHED] [..]").run();

    p.change_file(
        "Cargo.toml",
        r#"
            [package]
            name = "foo"
            version = "0.0.1"
            authors = []

            [dependencies]
            bar = "0.1.0"

            [patch.crates-io]
            bar = { path = 'bar' }
        "#,
    );

    p.cargo("build")
        .with_stderr(
            "\
[COMPILING] bar v0.1.0 ([CWD]/bar)
[COMPILING] foo v0.0.1 ([CWD])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
        )
        .run();
    p.cargo("build").with_stderr("[FINISHED] [..]").run();
}

#[cargo_test]
fn add_ignored_patch() {
    Package::new("bar", "0.1.0").publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.0.1"
                authors = []

                [dependencies]
                bar = "0.1.0"
            "#,
        )
        .file("src/lib.rs", "")
        .file("bar/Cargo.toml", &basic_manifest("bar", "0.1.1"))
        .file("bar/src/lib.rs", r#""#)
        .build();

    p.cargo("build")
        .with_stderr(
            "\
[UPDATING] `[ROOT][..]` index
[DOWNLOADING] crates ...
[DOWNLOADED] bar v0.1.0 [..]
[COMPILING] bar v0.1.0
[COMPILING] foo v0.0.1 ([CWD])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
        )
        .run();
    p.cargo("build").with_stderr("[FINISHED] [..]").run();

    p.change_file(
        "Cargo.toml",
        r#"
            [package]
            name = "foo"
            version = "0.0.1"
            authors = []

            [dependencies]
            bar = "0.1.0"

            [patch.crates-io]
            bar = { path = 'bar' }
        "#,
    );

    p.cargo("build")
        .with_stderr(
            "\
[WARNING] Patch `bar v0.1.1 ([CWD]/bar)` was not used in the crate graph.
[..]
[..]
[..]
[..]
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]",
        )
        .run();
    p.cargo("build")
        .with_stderr(
            "\
[WARNING] Patch `bar v0.1.1 ([CWD]/bar)` was not used in the crate graph.
[..]
[..]
[..]
[..]
[FINISHED] [..]",
        )
        .run();

    p.cargo("update").run();
    p.cargo("build")
        .with_stderr(
            "\
[COMPILING] bar v0.1.1 ([CWD]/bar)
[COMPILING] foo v0.0.1 ([CWD])
[FINISHED] dev [..]
",
        )
        .run();
}

#[cargo_test]
fn no_warn_ws_patch() {
    Package::new("c", "0.1.0").publish();

    // Don't issue an unused patch warning when the patch isn't used when
    // partially building a workspace.
    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [workspace]
                members = ["a", "b", "c"]

                [patch.crates-io]
                c = { path = "c" }
            "#,
        )
        .file("a/Cargo.toml", &basic_manifest("a", "0.1.0"))
        .file("a/src/lib.rs", "")
        .file(
            "b/Cargo.toml",
            r#"
                [package]
                name = "b"
                version = "0.1.0"
                [dependencies]
                c = "0.1.0"
            "#,
        )
        .file("b/src/lib.rs", "")
        .file("c/Cargo.toml", &basic_manifest("c", "0.1.0"))
        .file("c/src/lib.rs", "")
        .build();

    p.cargo("build -p a")
        .with_stderr(
            "\
[UPDATING] [..]
[COMPILING] a [..]
[FINISHED] [..]",
        )
        .run();
}

#[cargo_test]
fn new_minor() {
    Package::new("bar", "0.1.0").publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.0.1"
                authors = []

                [dependencies]
                bar = "0.1.0"

                [patch.crates-io]
                bar = { path = 'bar' }
            "#,
        )
        .file("src/lib.rs", "")
        .file("bar/Cargo.toml", &basic_manifest("bar", "0.1.1"))
        .file("bar/src/lib.rs", r#""#)
        .build();

    p.cargo("build")
        .with_stderr(
            "\
[UPDATING] `[ROOT][..]` index
[COMPILING] bar v0.1.1 [..]
[COMPILING] foo v0.0.1 ([CWD])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
        )
        .run();
}

#[cargo_test]
fn transitive_new_minor() {
    Package::new("baz", "0.1.0").publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.0.1"
                authors = []

                [dependencies]
                bar = { path = 'bar' }

                [patch.crates-io]
                baz = { path = 'baz' }
            "#,
        )
        .file("src/lib.rs", "")
        .file(
            "bar/Cargo.toml",
            r#"
                [package]
                name = "bar"
                version = "0.1.0"
                authors = []

                [dependencies]
                baz = '0.1.0'
            "#,
        )
        .file("bar/src/lib.rs", r#""#)
        .file("baz/Cargo.toml", &basic_manifest("baz", "0.1.1"))
        .file("baz/src/lib.rs", r#""#)
        .build();

    p.cargo("build")
        .with_stderr(
            "\
[UPDATING] `[ROOT][..]` index
[COMPILING] baz v0.1.1 [..]
[COMPILING] bar v0.1.0 [..]
[COMPILING] foo v0.0.1 ([CWD])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
        )
        .run();
}

#[cargo_test]
fn new_major() {
    Package::new("bar", "0.1.0").publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.0.1"
                authors = []

                [dependencies]
                bar = "0.2.0"

                [patch.crates-io]
                bar = { path = 'bar' }
            "#,
        )
        .file("src/lib.rs", "")
        .file("bar/Cargo.toml", &basic_manifest("bar", "0.2.0"))
        .file("bar/src/lib.rs", r#""#)
        .build();

    p.cargo("build")
        .with_stderr(
            "\
[UPDATING] `[ROOT][..]` index
[COMPILING] bar v0.2.0 [..]
[COMPILING] foo v0.0.1 ([CWD])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
        )
        .run();

    Package::new("bar", "0.2.0").publish();
    p.cargo("update").run();
    p.cargo("build")
        .with_stderr("[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]")
        .run();

    p.change_file(
        "Cargo.toml",
        r#"
            [package]
            name = "foo"
            version = "0.0.1"
            authors = []

            [dependencies]
            bar = "0.2.0"
        "#,
    );
    p.cargo("build")
        .with_stderr(
            "\
[UPDATING] `[ROOT][..]` index
[DOWNLOADING] crates ...
[DOWNLOADED] bar v0.2.0 [..]
[COMPILING] bar v0.2.0
[COMPILING] foo v0.0.1 ([CWD])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
        )
        .run();
}

#[cargo_test]
fn transitive_new_major() {
    Package::new("baz", "0.1.0").publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.0.1"
                authors = []

                [dependencies]
                bar = { path = 'bar' }

                [patch.crates-io]
                baz = { path = 'baz' }
            "#,
        )
        .file("src/lib.rs", "")
        .file(
            "bar/Cargo.toml",
            r#"
                [package]
                name = "bar"
                version = "0.1.0"
                authors = []

                [dependencies]
                baz = '0.2.0'
            "#,
        )
        .file("bar/src/lib.rs", r#""#)
        .file("baz/Cargo.toml", &basic_manifest("baz", "0.2.0"))
        .file("baz/src/lib.rs", r#""#)
        .build();

    p.cargo("build")
        .with_stderr(
            "\
[UPDATING] `[ROOT][..]` index
[COMPILING] baz v0.2.0 [..]
[COMPILING] bar v0.1.0 [..]
[COMPILING] foo v0.0.1 ([CWD])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
        )
        .run();
}

#[cargo_test]
fn shared_by_transitive() {
    Package::new("baz", "0.1.1").publish();

    let baz = git::repo(&paths::root().join("override"))
        .file("Cargo.toml", &basic_manifest("baz", "0.1.2"))
        .file("src/lib.rs", "")
        .build();

    let p = project()
        .file(
            "Cargo.toml",
            &format!(
                r#"
                    [package]
                    name = "foo"
                    version = " 0.1.0"

                    [dependencies]
                    bar = {{ path = "bar" }}
                    baz = "0.1"

                    [patch.crates-io]
                    baz = {{ git = "{}", version = "0.1" }}
                "#,
                baz.url(),
            ),
        )
        .file("src/lib.rs", "")
        .file(
            "bar/Cargo.toml",
            r#"
                [package]
                name = "bar"
                version = "0.1.0"

                [dependencies]
                baz = "0.1.1"
            "#,
        )
        .file("bar/src/lib.rs", "")
        .build();

    p.cargo("build")
        .with_stderr(
            "\
[UPDATING] git repository `file://[..]`
[UPDATING] `[ROOT][..]` index
[COMPILING] baz v0.1.2 [..]
[COMPILING] bar v0.1.0 [..]
[COMPILING] foo v0.1.0 ([CWD])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
",
        )
        .run();
}

#[cargo_test]
fn remove_patch() {
    Package::new("foo", "0.1.0").publish();
    Package::new("bar", "0.1.0").publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.0.1"
                authors = []

                [dependencies]
                bar = "0.1"

                [patch.crates-io]
                foo = { path = 'foo' }
                bar = { path = 'bar' }
            "#,
        )
        .file("src/lib.rs", "")
        .file("bar/Cargo.toml", &basic_manifest("bar", "0.1.0"))
        .file("bar/src/lib.rs", r#""#)
        .file("foo/Cargo.toml", &basic_manifest("foo", "0.1.0"))
        .file("foo/src/lib.rs", r#""#)
        .build();

    // Generate a lock file where `foo` is unused
    p.cargo("build").run();
    let lock_file1 = p.read_lockfile();

    // Remove `foo` and generate a new lock file form the old one
    p.change_file(
        "Cargo.toml",
        r#"
            [package]
            name = "foo"
            version = "0.0.1"
            authors = []

            [dependencies]
            bar = "0.1"

            [patch.crates-io]
            bar = { path = 'bar' }
        "#,
    );
    p.cargo("build").run();
    let lock_file2 = p.read_lockfile();

    // Remove the lock file and build from scratch
    fs::remove_file(p.root().join("Cargo.lock")).unwrap();
    p.cargo("build").run();
    let lock_file3 = p.read_lockfile();

    assert!(lock_file1.contains("foo"));
    assert_eq!(lock_file2, lock_file3);
    assert_ne!(lock_file1, lock_file2);
}

#[cargo_test]
fn non_crates_io() {
    Package::new("bar", "0.1.0").publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.0.1"
                authors = []

                [patch.some-other-source]
                bar = { path = 'bar' }
            "#,
        )
        .file("src/lib.rs", "")
        .file("bar/Cargo.toml", &basic_manifest("bar", "0.1.0"))
        .file("bar/src/lib.rs", r#""#)
        .build();

    p.cargo("build")
        .with_status(101)
        .with_stderr(
            "\
error: failed to parse manifest at `[..]`

Caused by:
  [patch] entry `some-other-source` should be a URL or registry name

Caused by:
  invalid url `some-other-source`: relative URL without a base
",
        )
        .run();
}

#[cargo_test]
fn replace_with_crates_io() {
    Package::new("bar", "0.1.0").publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.0.1"
                authors = []

                [patch.crates-io]
                bar = "0.1"
            "#,
        )
        .file("src/lib.rs", "")
        .file("bar/Cargo.toml", &basic_manifest("bar", "0.1.0"))
        .file("bar/src/lib.rs", r#""#)
        .build();

    p.cargo("build")
        .with_status(101)
        .with_stderr(
            "\
[UPDATING] [..]
error: failed to resolve patches for `[..]`

Caused by:
  patch for `bar` in `[..]` points to the same source, but patches must point \
  to different sources
",
        )
        .run();
}

#[cargo_test]
fn patch_in_virtual() {
    Package::new("bar", "0.1.0").publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [workspace]
                members = ["foo"]

                [patch.crates-io]
                bar = { path = "bar" }
            "#,
        )
        .file("bar/Cargo.toml", &basic_manifest("bar", "0.1.0"))
        .file("bar/src/lib.rs", r#""#)
        .file(
            "foo/Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.1.0"
                authors = []

                [dependencies]
                bar = "0.1"
            "#,
        )
        .file("foo/src/lib.rs", r#""#)
        .build();

    p.cargo("build").run();
    p.cargo("build").with_stderr("[FINISHED] [..]").run();
}

#[cargo_test]
fn patch_depends_on_another_patch() {
    Package::new("bar", "0.1.0")
        .file("src/lib.rs", "broken code")
        .publish();

    Package::new("baz", "0.1.0")
        .dep("bar", "0.1")
        .file("src/lib.rs", "broken code")
        .publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                authors = []
                version = "0.1.0"

                [dependencies]
                bar = "0.1"
                baz = "0.1"

                [patch.crates-io]
                bar = { path = "bar" }
                baz = { path = "baz" }
            "#,
        )
        .file("src/lib.rs", "")
        .file("bar/Cargo.toml", &basic_manifest("bar", "0.1.1"))
        .file("bar/src/lib.rs", r#""#)
        .file(
            "baz/Cargo.toml",
            r#"
                [package]
                name = "baz"
                version = "0.1.1"
                authors = []

                [dependencies]
                bar = "0.1"
            "#,
        )
        .file("baz/src/lib.rs", r#""#)
        .build();

    p.cargo("build").run();

    // Nothing should be rebuilt, no registry should be updated.
    p.cargo("build").with_stderr("[FINISHED] [..]").run();
}

#[cargo_test]
fn replace_prerelease() {
    Package::new("baz", "1.1.0-pre.1").publish();
    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [workspace]
                members = ["bar"]

                [patch.crates-io]
                baz = { path = "./baz" }
            "#,
        )
        .file(
            "bar/Cargo.toml",
            r#"
                [project]
                name = "bar"
                version = "0.5.0"
                authors = []

                [dependencies]
                baz = "1.1.0-pre.1"
            "#,
        )
        .file(
            "bar/src/main.rs",
            "extern crate baz; fn main() { baz::baz() }",
        )
        .file(
            "baz/Cargo.toml",
            r#"
                [project]
                name = "baz"
                version = "1.1.0-pre.1"
                authors = []
                [workspace]
            "#,
        )
        .file("baz/src/lib.rs", "pub fn baz() {}")
        .build();

    p.cargo("build").run();
}

#[cargo_test]
fn patch_older() {
    Package::new("baz", "1.0.2").publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.1.0"

                [dependencies]
                bar = { path = 'bar' }
                baz = "=1.0.1"

                [patch.crates-io]
                baz = { path = "./baz" }
            "#,
        )
        .file("src/lib.rs", "")
        .file(
            "bar/Cargo.toml",
            r#"
                [project]
                name = "bar"
                version = "0.5.0"
                authors = []

                [dependencies]
                baz = "1.0.0"
            "#,
        )
        .file("bar/src/lib.rs", "")
        .file(
            "baz/Cargo.toml",
            r#"
                [project]
                name = "baz"
                version = "1.0.1"
                authors = []
            "#,
        )
        .file("baz/src/lib.rs", "")
        .build();

    p.cargo("build")
        .with_stderr(
            "\
[UPDATING] [..]
[COMPILING] baz v1.0.1 [..]
[COMPILING] bar v0.5.0 [..]
[COMPILING] foo v0.1.0 [..]
[FINISHED] [..]
",
        )
        .run();
}

#[cargo_test]
fn cycle() {
    Package::new("a", "1.0.0").publish();
    Package::new("b", "1.0.0").publish();
    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [workspace]
                members = ["a", "b"]

                [patch.crates-io]
                a = {path="a"}
                b = {path="b"}
            "#,
        )
        .file(
            "a/Cargo.toml",
            r#"
                [package]
                name = "a"
                version = "1.0.0"

                [dependencies]
                b = "1.0"
            "#,
        )
        .file("a/src/lib.rs", "")
        .file(
            "b/Cargo.toml",
            r#"
                [package]
                name = "b"
                version = "1.0.0"

                [dependencies]
                a = "1.0"
            "#,
        )
        .file("b/src/lib.rs", "")
        .build();

    p.cargo("check")
        .with_status(101)
        .with_stderr(
            "\
[UPDATING] [..]
error: cyclic package dependency: [..]
package `[..]`
    ... which is depended on by `[..]`
    ... which is depended on by `[..]`
",
        )
        .run();
}

#[cargo_test]
fn multipatch() {
    Package::new("a", "1.0.0").publish();
    Package::new("a", "2.0.0").publish();
    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.0.1"

                [dependencies]
                a1 = { version = "1", package = "a" }
                a2 = { version = "2", package = "a" }

                [patch.crates-io]
                b1 = { path = "a1", package = "a" }
                b2 = { path = "a2", package = "a" }
            "#,
        )
        .file("src/lib.rs", "pub fn foo() { a1::f1(); a2::f2(); }")
        .file(
            "a1/Cargo.toml",
            r#"
                [package]
                name = "a"
                version = "1.0.0"
            "#,
        )
        .file("a1/src/lib.rs", "pub fn f1() {}")
        .file(
            "a2/Cargo.toml",
            r#"
                [package]
                name = "a"
                version = "2.0.0"
            "#,
        )
        .file("a2/src/lib.rs", "pub fn f2() {}")
        .build();

    p.cargo("build").run();
}

#[cargo_test]
fn patch_same_version() {
    let bar = git::repo(&paths::root().join("override"))
        .file("Cargo.toml", &basic_manifest("bar", "0.1.0"))
        .file("src/lib.rs", "")
        .build();

    cargo_test_support::registry::init();

    let p = project()
        .file(
            "Cargo.toml",
            &format!(
                r#"
                    [package]
                    name = "foo"
                    version = "0.0.1"
                    [dependencies]
                    bar = "0.1"
                    [patch.crates-io]
                    bar = {{ path = "bar" }}
                    bar2 = {{ git = '{}', package = 'bar' }}
                "#,
                bar.url(),
            ),
        )
        .file("src/lib.rs", "")
        .file(
            "bar/Cargo.toml",
            r#"
                [package]
                name = "bar"
                version = "0.1.0"
            "#,
        )
        .file("bar/src/lib.rs", "")
        .build();

    p.cargo("build")
        .with_status(101)
        .with_stderr(
            "\
[UPDATING] [..]
error: cannot have two `[patch]` entries which both resolve to `bar v0.1.0`
",
        )
        .run();
}

#[cargo_test]
fn two_semver_compatible() {
    let bar = git::repo(&paths::root().join("override"))
        .file("Cargo.toml", &basic_manifest("bar", "0.1.1"))
        .file("src/lib.rs", "")
        .build();

    cargo_test_support::registry::init();

    let p = project()
        .file(
            "Cargo.toml",
            &format!(
                r#"
                    [package]
                    name = "foo"
                    version = "0.0.1"
                    [dependencies]
                    bar = "0.1"
                    [patch.crates-io]
                    bar = {{ path = "bar" }}
                    bar2 = {{ git = '{}', package = 'bar' }}
                "#,
                bar.url(),
            ),
        )
        .file("src/lib.rs", "pub fn foo() { bar::foo() }")
        .file(
            "bar/Cargo.toml",
            r#"
                [package]
                name = "bar"
                version = "0.1.2"
            "#,
        )
        .file("bar/src/lib.rs", "pub fn foo() {}")
        .build();

    // assert the build succeeds and doesn't panic anywhere, and then afterwards
    // assert that the build succeeds again without updating anything or
    // building anything else.
    p.cargo("build").run();
    p.cargo("build")
        .with_stderr(
            "\
warning: Patch `bar v0.1.1 [..]` was not used in the crate graph.
Check that [..]
with the [..]
what is [..]
version. [..]
[FINISHED] [..]",
        )
        .run();
}

#[cargo_test]
fn multipatch_select_big() {
    let bar = git::repo(&paths::root().join("override"))
        .file("Cargo.toml", &basic_manifest("bar", "0.1.0"))
        .file("src/lib.rs", "")
        .build();

    cargo_test_support::registry::init();

    let p = project()
        .file(
            "Cargo.toml",
            &format!(
                r#"
                    [package]
                    name = "foo"
                    version = "0.0.1"
                    [dependencies]
                    bar = "*"
                    [patch.crates-io]
                    bar = {{ path = "bar" }}
                    bar2 = {{ git = '{}', package = 'bar' }}
                "#,
                bar.url(),
            ),
        )
        .file("src/lib.rs", "pub fn foo() { bar::foo() }")
        .file(
            "bar/Cargo.toml",
            r#"
                [package]
                name = "bar"
                version = "0.2.0"
            "#,
        )
        .file("bar/src/lib.rs", "pub fn foo() {}")
        .build();

    // assert the build succeeds, which is only possible if 0.2.0 is selected
    // since 0.1.0 is missing the function we need. Afterwards assert that the
    // build succeeds again without updating anything or building anything else.
    p.cargo("build").run();
    p.cargo("build")
        .with_stderr(
            "\
warning: Patch `bar v0.1.0 [..]` was not used in the crate graph.
Check that [..]
with the [..]
what is [..]
version. [..]
[FINISHED] [..]",
        )
        .run();
}

#[cargo_test]
fn canonicalize_a_bunch() {
    let base = git::repo(&paths::root().join("base"))
        .file("Cargo.toml", &basic_manifest("base", "0.1.0"))
        .file("src/lib.rs", "")
        .build();

    let intermediate = git::repo(&paths::root().join("intermediate"))
        .file(
            "Cargo.toml",
            &format!(
                r#"
                    [package]
                    name = "intermediate"
                    version = "0.1.0"

                    [dependencies]
                    # Note the lack of trailing slash
                    base = {{ git = '{}' }}
                "#,
                base.url(),
            ),
        )
        .file("src/lib.rs", "pub fn f() { base::f() }")
        .build();

    let newbase = git::repo(&paths::root().join("newbase"))
        .file("Cargo.toml", &basic_manifest("base", "0.1.0"))
        .file("src/lib.rs", "pub fn f() {}")
        .build();

    let p = project()
        .file(
            "Cargo.toml",
            &format!(
                r#"
                    [package]
                    name = "foo"
                    version = "0.0.1"

                    [dependencies]
                    # Note the trailing slashes
                    base = {{ git = '{base}/' }}
                    intermediate = {{ git = '{intermediate}/' }}

                    [patch.'{base}'] # Note the lack of trailing slash
                    base = {{ git = '{newbase}' }}
                "#,
                base = base.url(),
                intermediate = intermediate.url(),
                newbase = newbase.url(),
            ),
        )
        .file("src/lib.rs", "pub fn a() { base::f(); intermediate::f() }")
        .build();

    // Once to make sure it actually works
    p.cargo("build").run();

    // Then a few more times for good measure to ensure no weird warnings about
    // `[patch]` are printed.
    p.cargo("build").with_stderr("[FINISHED] [..]").run();
    p.cargo("build").with_stderr("[FINISHED] [..]").run();
}

#[cargo_test]
fn update_unused_new_version() {
    // If there is an unused patch entry, and then you update the patch,
    // make sure `cargo update` will be able to fix the lock file.
    Package::new("bar", "0.1.5").publish();

    // Start with a lock file to 0.1.5, and an "unused" patch because the
    // version is too old.
    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.0.1"

                [dependencies]
                bar = "0.1.5"

                [patch.crates-io]
                bar = { path = "../bar" }
            "#,
        )
        .file("src/lib.rs", "")
        .build();

    // Patch is too old.
    let bar = project()
        .at("bar")
        .file("Cargo.toml", &basic_manifest("bar", "0.1.4"))
        .file("src/lib.rs", "")
        .build();

    p.cargo("build")
        .with_stderr_contains("[WARNING] Patch `bar v0.1.4 [..] was not used in the crate graph.")
        .run();
    // unused patch should be in the lock file
    let lock = p.read_lockfile();
    let toml: toml::Value = toml::from_str(&lock).unwrap();
    assert_eq!(toml["patch"]["unused"].as_array().unwrap().len(), 1);
    assert_eq!(toml["patch"]["unused"][0]["name"].as_str(), Some("bar"));
    assert_eq!(
        toml["patch"]["unused"][0]["version"].as_str(),
        Some("0.1.4")
    );

    // Oh, OK, let's update to the latest version.
    bar.change_file("Cargo.toml", &basic_manifest("bar", "0.1.6"));

    // Create a backup so we can test it with different options.
    fs::copy(p.root().join("Cargo.lock"), p.root().join("Cargo.lock.bak")).unwrap();

    // Try to build again, this should automatically update Cargo.lock.
    p.cargo("build")
        .with_stderr(
            "\
[UPDATING] `[..]/registry` index
[COMPILING] bar v0.1.6 ([..]/bar)
[COMPILING] foo v0.0.1 ([..]/foo)
[FINISHED] [..]
",
        )
        .run();
    // This should not update any registry.
    p.cargo("build").with_stderr("[FINISHED] [..]").run();
    assert!(!p.read_lockfile().contains("unused"));

    // Restore the lock file, and see if `update` will work, too.
    fs::copy(p.root().join("Cargo.lock.bak"), p.root().join("Cargo.lock")).unwrap();

    // Try `update -p`.
    p.cargo("update -p bar")
        .with_stderr(
            "\
[UPDATING] `[..]/registry` index
[ADDING] bar v0.1.6 ([..]/bar)
[REMOVING] bar v0.1.5
",
        )
        .run();

    // Try with bare `cargo update`.
    fs::copy(p.root().join("Cargo.lock.bak"), p.root().join("Cargo.lock")).unwrap();
    p.cargo("update")
        .with_stderr(
            "\
[UPDATING] `[..]/registry` index
[ADDING] bar v0.1.6 ([..]/bar)
[REMOVING] bar v0.1.5
",
        )
        .run();
}

#[cargo_test]
fn too_many_matches() {
    // The patch locations has multiple versions that match.
    registry::alt_init();
    Package::new("bar", "0.1.0").publish();
    Package::new("bar", "0.1.0").alternative(true).publish();
    Package::new("bar", "0.1.1").alternative(true).publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.1.0"

                [dependencies]
                bar = "0.1"

                [patch.crates-io]
                bar = { version = "0.1", registry = "alternative" }
            "#,
        )
        .file("src/lib.rs", "")
        .build();

    // Picks 0.1.1, the most recent version.
    p.cargo("check")
        .with_status(101)
        .with_stderr(
            "\
[UPDATING] `[..]/alternative-registry` index
[ERROR] failed to resolve patches for `https://github.com/rust-lang/crates.io-index`

Caused by:
  patch for `bar` in `https://github.com/rust-lang/crates.io-index` failed to resolve

Caused by:
  patch for `bar` in `registry `[..]/alternative-registry`` resolved to more than one candidate
  Found versions: 0.1.0, 0.1.1
  Update the patch definition to select only one package.
  For example, add an `=` version requirement to the patch definition, such as `version = \"=0.1.1\"`.
",
        )
        .run();
}

#[cargo_test]
fn no_matches() {
    // A patch to a location that does not contain the named package.
    let p = project()
        .file(
            "Cargo.toml",
            r#"
                 [package]
                 name = "foo"
                 version = "0.1.0"

                 [dependencies]
                 bar = "0.1"

                 [patch.crates-io]
                 bar = { path = "bar" }
            "#,
        )
        .file("src/lib.rs", "")
        .file("bar/Cargo.toml", &basic_manifest("abc", "0.1.0"))
        .file("bar/src/lib.rs", "")
        .build();

    p.cargo("check")
        .with_status(101)
        .with_stderr(
            "\
error: failed to resolve patches for `https://github.com/rust-lang/crates.io-index`

Caused by:
  patch for `bar` in `https://github.com/rust-lang/crates.io-index` failed to resolve

Caused by:
  The patch location `[..]/foo/bar` does not appear to contain any packages matching the name `bar`.
",
        )
        .run();
}

#[cargo_test]
fn mismatched_version() {
    // A patch to a location that has an old version.
    let p = project()
        .file(
            "Cargo.toml",
            r#"
                 [package]
                 name = "foo"
                 version = "0.1.0"

                 [dependencies]
                 bar = "0.1.1"

                 [patch.crates-io]
                 bar = { path = "bar", version = "0.1.1" }
            "#,
        )
        .file("src/lib.rs", "")
        .file("bar/Cargo.toml", &basic_manifest("bar", "0.1.0"))
        .file("bar/src/lib.rs", "")
        .build();

    p.cargo("check")
        .with_status(101)
        .with_stderr(
            "\
[ERROR] failed to resolve patches for `https://github.com/rust-lang/crates.io-index`

Caused by:
  patch for `bar` in `https://github.com/rust-lang/crates.io-index` failed to resolve

Caused by:
  The patch location `[..]/foo/bar` contains a `bar` package with version `0.1.0`, \
  but the patch definition requires `^0.1.1`.
  Check that the version in the patch location is what you expect, \
  and update the patch definition to match.
",
        )
        .run();
}

#[cargo_test]
fn patch_walks_backwards() {
    // Starting with a locked patch, change the patch so it points to an older version.
    Package::new("bar", "0.1.0").publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
            [package]
            name = "foo"
            version = "0.1.0"

            [dependencies]
            bar = "0.1"

            [patch.crates-io]
            bar = {path="bar"}
            "#,
        )
        .file("src/lib.rs", "")
        .file("bar/Cargo.toml", &basic_manifest("bar", "0.1.1"))
        .file("bar/src/lib.rs", "")
        .build();

    p.cargo("check")
        .with_stderr(
            "\
[UPDATING] `[..]/registry` index
[CHECKING] bar v0.1.1 ([..]/foo/bar)
[CHECKING] foo v0.1.0 ([..]/foo)
[FINISHED] [..]
",
        )
        .run();

    // Somehow the user changes the version backwards.
    p.change_file("bar/Cargo.toml", &basic_manifest("bar", "0.1.0"));

    p.cargo("check")
        .with_stderr(
            "\
[UPDATING] `[..]/registry` index
[CHECKING] bar v0.1.0 ([..]/foo/bar)
[CHECKING] foo v0.1.0 ([..]/foo)
[FINISHED] [..]
",
        )
        .run();
}

#[cargo_test]
fn patch_walks_backwards_restricted() {
    // This is the same as `patch_walks_backwards`, but the patch contains a
    // `version` qualifier. This is unusual, just checking a strange edge case.
    Package::new("bar", "0.1.0").publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
            [package]
            name = "foo"
            version = "0.1.0"

            [dependencies]
            bar = "0.1"

            [patch.crates-io]
            bar = {path="bar", version="0.1.1"}
            "#,
        )
        .file("src/lib.rs", "")
        .file("bar/Cargo.toml", &basic_manifest("bar", "0.1.1"))
        .file("bar/src/lib.rs", "")
        .build();

    p.cargo("check")
        .with_stderr(
            "\
[UPDATING] `[..]/registry` index
[CHECKING] bar v0.1.1 ([..]/foo/bar)
[CHECKING] foo v0.1.0 ([..]/foo)
[FINISHED] [..]
",
        )
        .run();

    // Somehow the user changes the version backwards.
    p.change_file("bar/Cargo.toml", &basic_manifest("bar", "0.1.0"));

    p.cargo("check")
        .with_status(101)
        .with_stderr(
            "\
error: failed to resolve patches for `https://github.com/rust-lang/crates.io-index`

Caused by:
  patch for `bar` in `https://github.com/rust-lang/crates.io-index` failed to resolve

Caused by:
  The patch location `[..]/foo/bar` contains a `bar` package with version `0.1.0`, but the patch definition requires `^0.1.1`.
  Check that the version in the patch location is what you expect, and update the patch definition to match.
",
        )
        .run();
}

#[cargo_test]
fn patched_dep_new_version() {
    // What happens when a patch is locked, and then one of the patched
    // dependencies needs to be updated. In this case, the baz requirement
    // gets updated from 0.1.0 to 0.1.1.
    Package::new("bar", "0.1.0").dep("baz", "0.1.0").publish();
    Package::new("baz", "0.1.0").publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
            [package]
            name = "foo"
            version = "0.1.0"

            [dependencies]
            bar = "0.1"

            [patch.crates-io]
            bar = {path="bar"}
            "#,
        )
        .file("src/lib.rs", "")
        .file(
            "bar/Cargo.toml",
            r#"
            [package]
            name = "bar"
            version = "0.1.0"

            [dependencies]
            baz = "0.1"
            "#,
        )
        .file("bar/src/lib.rs", "")
        .build();

    // Lock everything.
    p.cargo("check")
        .with_stderr(
            "\
[UPDATING] `[..]/registry` index
[DOWNLOADING] crates ...
[DOWNLOADED] baz v0.1.0 [..]
[CHECKING] baz v0.1.0
[CHECKING] bar v0.1.0 ([..]/foo/bar)
[CHECKING] foo v0.1.0 ([..]/foo)
[FINISHED] [..]
",
        )
        .run();

    Package::new("baz", "0.1.1").publish();

    // Just the presence of the new version should not have changed anything.
    p.cargo("check").with_stderr("[FINISHED] [..]").run();

    // Modify the patch so it requires the new version.
    p.change_file(
        "bar/Cargo.toml",
        r#"
            [package]
            name = "bar"
            version = "0.1.0"

            [dependencies]
            baz = "0.1.1"
        "#,
    );

    // Should unlock and update cleanly.
    p.cargo("check")
        .with_stderr(
            "\
[UPDATING] `[..]/registry` index
[DOWNLOADING] crates ...
[DOWNLOADED] baz v0.1.1 (registry `[..]/registry`)
[CHECKING] baz v0.1.1
[CHECKING] bar v0.1.0 ([..]/foo/bar)
[CHECKING] foo v0.1.0 ([..]/foo)
[FINISHED] [..]
",
        )
        .run();
}

#[cargo_test]
fn patch_update_doesnt_update_other_sources() {
    // Very extreme edge case, make sure a patch update doesn't update other
    // sources.
    registry::alt_init();
    Package::new("bar", "0.1.0").publish();
    Package::new("bar", "0.1.0").alternative(true).publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
            [package]
            name = "foo"
            version = "0.1.0"

            [dependencies]
            bar = "0.1"
            bar_alt = { version = "0.1", registry = "alternative", package = "bar"  }

            [patch.crates-io]
            bar = { path = "bar" }
            "#,
        )
        .file("src/lib.rs", "")
        .file("bar/Cargo.toml", &basic_manifest("bar", "0.1.0"))
        .file("bar/src/lib.rs", "")
        .build();

    p.cargo("check")
        .with_stderr_unordered(
            "\
[UPDATING] `[..]/registry` index
[UPDATING] `[..]/alternative-registry` index
[DOWNLOADING] crates ...
[DOWNLOADED] bar v0.1.0 (registry `[..]/alternative-registry`)
[CHECKING] bar v0.1.0 (registry `[..]/alternative-registry`)
[CHECKING] bar v0.1.0 ([..]/foo/bar)
[CHECKING] foo v0.1.0 ([..]/foo)
[FINISHED] [..]
",
        )
        .run();

    // Publish new versions in both sources.
    Package::new("bar", "0.1.1").publish();
    Package::new("bar", "0.1.1").alternative(true).publish();

    // Since it is locked, nothing should change.
    p.cargo("check").with_stderr("[FINISHED] [..]").run();

    // Require new version on crates.io.
    p.change_file("bar/Cargo.toml", &basic_manifest("bar", "0.1.1"));

    // This should not update bar_alt.
    p.cargo("check")
        .with_stderr(
            "\
[UPDATING] `[..]/registry` index
[CHECKING] bar v0.1.1 ([..]/foo/bar)
[CHECKING] foo v0.1.0 ([..]/foo)
[FINISHED] [..]
",
        )
        .run();
}

#[cargo_test]
fn can_update_with_alt_reg() {
    // A patch to an alt reg can update.
    registry::alt_init();
    Package::new("bar", "0.1.0").publish();
    Package::new("bar", "0.1.0").alternative(true).publish();
    Package::new("bar", "0.1.1").alternative(true).publish();

    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.1.0"

                [dependencies]
                bar = "0.1"

                [patch.crates-io]
                bar = { version = "=0.1.1", registry = "alternative" }
            "#,
        )
        .file("src/lib.rs", "")
        .build();

    p.cargo("check")
        .with_stderr(
            "\
[UPDATING] `[..]/alternative-registry` index
[UPDATING] `[..]/registry` index
[DOWNLOADING] crates ...
[DOWNLOADED] bar v0.1.1 (registry `[..]/alternative-registry`)
[CHECKING] bar v0.1.1 (registry `[..]/alternative-registry`)
[CHECKING] foo v0.1.0 ([..]/foo)
[FINISHED] [..]
",
        )
        .run();

    Package::new("bar", "0.1.2").alternative(true).publish();

    // Should remain locked.
    p.cargo("check").with_stderr("[FINISHED] [..]").run();

    // This does nothing, due to `=` requirement.
    p.cargo("update -p bar")
        .with_stderr(
            "\
[UPDATING] `[..]/alternative-registry` index
[UPDATING] `[..]/registry` index
",
        )
        .run();

    // Bump to 0.1.2.
    p.change_file(
        "Cargo.toml",
        r#"
            [package]
            name = "foo"
            version = "0.1.0"

            [dependencies]
            bar = "0.1"

            [patch.crates-io]
            bar = { version = "=0.1.2", registry = "alternative" }
        "#,
    );

    p.cargo("check")
        .with_stderr(
            "\
[UPDATING] `[..]/alternative-registry` index
[UPDATING] `[..]/registry` index
[DOWNLOADING] crates ...
[DOWNLOADED] bar v0.1.2 (registry `[..]/alternative-registry`)
[CHECKING] bar v0.1.2 (registry `[..]/alternative-registry`)
[CHECKING] foo v0.1.0 ([..]/foo)
[FINISHED] [..]
",
        )
        .run();
}