add basic tests for risczero project

tests/risczero/project_structure_build/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "methods"
+version = "0.1.0"
+edition = "2021"
+
+[workspace]
+
+[build-dependencies]
+risc0-build = { version = "^2.1.1" }
+
+[package.metadata.risc0]
+methods = ["guest"]

tests/risczero/project_structure_build/build.rs

@@ -0,0 +1,3 @@
+fn main() {
+    risc0_build::embed_methods();
+}

tests/risczero/project_structure_build/ere_guest_info.json

@@ -0,0 +1,5 @@
+{
+    "name": "risc0guest",
+    "elf_path": "/Users/kev/work/ere/tests/risczero/project_structure_build/target/riscv-guest/methods/risc0guest/riscv32im-risc0-zkvm-elf/release/risc0guest.bin",
+    "image_id_hex": "6a0d2e9f10ded46c571e644cdf8776e8f96be1844df36386fdee6c0a0e90084c"
+}

tests/risczero/project_structure_build/guest/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "risc0guest"
+version = "0.1.0"
+edition = "2021"
+
+[workspace]
+
+[dependencies]
+risc0-zkvm = { version = "^2.0.2", default-features = false, features = ['std'] }

tests/risczero/project_structure_build/guest/src/main.rs

@@ -0,0 +1,13 @@
+use risc0_zkvm::guest::env;
+
+fn main() {
+    // TODO: Implement your guest code here
+
+    // read the input
+    let input: u32 = env::read();
+
+    // TODO: do something with the input
+
+    // write public output to the journal
+    env::commit(&input);
+}

tests/risczero/project_structure_build/rust-toolchain.toml

@@ -0,0 +1,4 @@
+[toolchain]
+channel = "stable"
+components = ["rustfmt", "rust-src"]
+profile = "minimal"

tests/risczero/project_structure_build/src/lib.rs

@@ -0,0 +1 @@
+include!(concat!(env!("OUT_DIR"), "/methods.rs"));