tests: add spread test for rust workspace

Signed-off-by: Chris Patterson <[email protected]>

Author: Chris Patterson

tests/spread/plugins/rust/snaps/rust-workspace-fib/Cargo.toml

@@ -0,0 +1,6 @@
+[workspace]
+
+members = [
+    "fib",
+    "calc-fib"
+]

tests/spread/plugins/rust/snaps/rust-workspace-fib/calc-fib/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "calc-fib"
+version = "0.1.0"
+authors = ["Chris Patterson <[email protected]>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+regex = "1"
+fib = { path = "../fib" }

tests/spread/plugins/rust/snaps/rust-workspace-fib/calc-fib/src/main.rs

@@ -0,0 +1,25 @@
+use std::env;
+extern crate fib;
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+ 
+    if args.len() < 2 {
+        eprintln!("please specify number");
+        return
+    }
+
+    let num_string = &args[1];
+    let number: i32 = match num_string.parse() {
+        Ok(n) => {
+            n
+        },
+        Err(_) => {
+            eprintln!("error: not an integer");
+            return;
+        }
+    };
+
+    let sum = fib::fib(number);
+    println!("{}", sum);
+}

tests/spread/plugins/rust/snaps/rust-workspace-fib/fib/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "fib"
+version = "0.1.0"
+authors = ["Chris Patterson <[email protected]>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

tests/spread/plugins/rust/snaps/rust-workspace-fib/fib/src/lib.rs

@@ -0,0 +1,13 @@
+// Terribly inefficient recursive fib routine.
+pub fn fib(n: i32) -> u64 {
+    if n < 0 {
+        panic!("invalid: {}", n);
+    }
+    if n == 0 {
+        return 0;
+    } else if n == 1 {
+        return 1;
+    } else {
+        return fib(n - 1) + fib(n - 2)
+    }
+}

tests/spread/plugins/rust/snaps/rust-workspace-fib/snap/snapcraft.yaml

@@ -0,0 +1,17 @@
+name: calc-fib
+version: "1.0"
+summary: Test the rust plugin with sworkspaces.
+description: |
+  This is a basic rust snap with workspaces.
+
+grade: devel
+confinement: strict
+
+apps:
+  calc-fib:
+    command: bin/calc-fib
+
+parts:
+  calc-fib:
+    plugin: rust
+    source: .

tests/spread/plugins/rust/workspace/task.yaml

@@ -0,0 +1,36 @@
+summary: Build and run a workspace rust snap
+
+systems:
+  - ubuntu-18.04
+  - ubuntu-18.04-64
+  - ubuntu-18.04-amd64
+  - ubuntu-18.04-i386
+  - ubuntu-18.04-armhf
+  - ubuntu-16.04
+  - ubuntu-16.04-64
+  - ubuntu-16.04-amd64
+  - ubuntu-16.04-i386
+  - ubuntu-16.04-armhf
+
+environment:
+  SNAP_DIR: ../snaps/rust-workspace-fib
+
+prepare: |
+  #shellcheck source=tests/spread/tools/snapcraft-yaml.sh
+  . "$TOOLS_DIR/snapcraft-yaml.sh"
+  set_base "$SNAP_DIR/snap/snapcraft.yaml"
+
+restore: |
+  cd "$SNAP_DIR"
+  snapcraft clean
+  rm -f ./*.snap
+
+  #shellcheck source=tests/spread/tools/snapcraft-yaml.sh
+  . "$TOOLS_DIR/snapcraft-yaml.sh"
+  restore_yaml "snap/snapcraft.yaml"
+
+execute: |
+  cd "$SNAP_DIR"
+  snapcraft
+  sudo snap install calc-fib_*.snap --dangerous
+  [ "$(calc-fib 8)" = "21" ]