Remove/rework some redundant .cwd(p.root()) in tests

tests/testsuite/install.rs

@@ -225,8 +225,7 @@ fn install_path() {
 
     cargo_process("install --path").arg(p.root()).run();
     assert_has_installed_exe(cargo_home(), "foo");
-    cargo_process("install --path .")
-        .cwd(p.root())
+    p.cargo("install --path .")
         .with_status(101)
         .with_stderr(
             "\
@@ -692,8 +691,7 @@ fn subcommand_works_out_of_the_box() {
 fn installs_from_cwd_by_default() {
     let p = project().file("src/main.rs", "fn main() {}").build();
 
-    cargo_process("install")
-        .cwd(p.root())
+    p.cargo("install")
         .with_stderr_contains(
             "warning: Using `cargo install` to install the binaries for the \
              project in current working directory is deprecated, \
@@ -725,8 +723,7 @@ fn installs_from_cwd_with_2018_warnings() {
         ).file("src/main.rs", "fn main() {}")
         .build();
 
-    cargo_process("install")
-        .cwd(p.root())
+    p.cargo("install")
         .masquerade_as_nightly_cargo()
         .with_status(101)
         .with_stderr_contains(
@@ -1243,15 +1240,6 @@ fn install_ignores_cargo_config() {
     pkg("bar", "0.0.1");
 
     let p = project()
-        .file(
-            "Cargo.toml",
-            r#"
-            [package]
-            name = "foo"
-            version = "0.1.0"
-            authors = []
-        "#,
-        )
         .file(
             ".cargo/config",
             r#"
@@ -1262,6 +1250,6 @@ fn install_ignores_cargo_config() {
         .file("src/main.rs", "fn main() {}")
         .build();
 
-    cargo_process("install bar").cwd(p.root()).with_status(0).run();
+    p.cargo("install bar").run();
     assert_has_installed_exe(cargo_home(), "bar");
 }

tests/testsuite/metadata.rs

@@ -903,7 +903,6 @@ fn cargo_metadata_no_deps_cwd() {
         .build();
 
     p.cargo("metadata --no-deps")
-        .cwd(p.root())
         .with_json(MANIFEST_OUTPUT)
         .run();
 }
@@ -916,7 +915,6 @@ fn cargo_metadata_bad_version() {
         .build();
 
     p.cargo("metadata --no-deps --format-version 2")
-        .cwd(p.root())
         .with_status(1)
         .with_stderr_contains(
             "\

tests/testsuite/package.rs

@@ -490,8 +490,7 @@ fn package_git_submodule() {
             None,
         ).unwrap();
 
-    cargo_process("package --no-verify -v")
-        .cwd(project.root())
+    project.cargo("package --no-verify -v")
         .with_stderr_contains("[ARCHIVING] bar/Makefile")
         .run();
 }
@@ -625,8 +624,7 @@ fn repackage_on_source_change() {
     std::mem::drop(file);
 
     // Check that cargo rebuilds the tarball
-    cargo_process("package")
-        .cwd(p.root())
+    p.cargo("package")
         .with_stderr(
             "\
 [WARNING] [..]

tests/testsuite/read_manifest.rs

@@ -98,7 +98,6 @@ fn cargo_read_manifest_cwd() {
         .build();
 
     p.cargo("read-manifest")
-        .cwd(p.root())
         .with_json(MANIFEST_OUTPUT)
         .run();
 }

tests/testsuite/verify_project.rs

@@ -39,7 +39,6 @@ fn cargo_verify_project_cwd() {
         .build();
 
     p.cargo("verify-project")
-        .cwd(p.root())
         .with_stdout(verify_project_success_output())
         .run();
 }

tests/testsuite/workspaces.rs

@@ -699,7 +699,7 @@ fn explicit_package_argument_works_with_virtual_manifest() {
         ).file("bar/Cargo.toml", &basic_manifest("bar", "0.1.0"))
         .file("bar/src/main.rs", "fn main() {}");
     let p = p.build();
-    p.cargo("build --package bar").cwd(p.root()).run();
+    p.cargo("build --package bar").run();
     assert!(p.root().join("Cargo.lock").is_file());
     assert!(p.bin("bar").is_file());
     assert!(!p.root().join("bar/Cargo.lock").is_file());
@@ -1222,7 +1222,6 @@ fn relative_path_for_root_works() {
     let p = p.build();
 
     p.cargo("build --manifest-path ./Cargo.toml")
-        .cwd(p.root())
         .run();
 
     p.cargo("build --manifest-path ../Cargo.toml")