test(add): Added test case for prefixed v in version

Author: Pyr0de

tests/testsuite/cargo_add/mod.rs

@@ -126,6 +126,7 @@ mod path_base_unstable;
 mod path_dev;
 mod path_inferred_name;
 mod path_inferred_name_conflicts_full_feature;
+mod prefixed_v_in_version;
 mod preserve_dep_std_table;
 mod preserve_features_sorted;
 mod preserve_features_table;

tests/testsuite/cargo_add/prefixed_v_in_version/in

@@ -0,0 +1 @@
+../add-basic.in

tests/testsuite/cargo_add/prefixed_v_in_version/mod.rs

@@ -0,0 +1,26 @@
+use cargo_test_support::compare::assert_ui;
+use cargo_test_support::current_dir;
+use cargo_test_support::file;
+use cargo_test_support::prelude::*;
+use cargo_test_support::str;
+use cargo_test_support::Project;
+
+#[cargo_test]
+fn case() {
+    cargo_test_support::registry::init();
+
+    let project = Project::from_template(current_dir!().join("in"));
+    let project_root = project.root();
+    let cwd = &project_root;
+
+    snapbox::cmd::Command::cargo_ui()
+        .arg("add")
+        .arg_line("foo@v0.0.1")
+        .current_dir(cwd)
+        .assert()
+        .code(101)
+        .stdout_eq(str![""])
+        .stderr_eq(file!["stderr.term.svg"]);
+
+    assert_ui().subset_matches(current_dir!().join("out"), &project_root);
+}

tests/testsuite/cargo_add/prefixed_v_in_version/out/Cargo.toml

@@ -0,0 +1,6 @@
+[workspace]
+
+[package]
+name = "cargo-list-test-fixture"
+version = "0.0.0"
+edition = "2015"