From 07fb523edb88ed258243869ab474ee7a24e1e4de Mon Sep 17 00:00:00 2001
From: Lars Wirzenius <liw@liw.fi>
Date: Fri, 10 Dec 2021 09:05:11 +0200
Subject: test: add implementation, running of Subplot scenarios

Sponsored-by: author
---
 build.rs             |  7 +++++++
 subplot/subplot.rs   | 30 ++++++++++++++++++++++++++++++
 subplot/subplot.yaml |  4 ++++
 tests/subplot.rs     |  1 +
 4 files changed, 42 insertions(+)
 create mode 100644 build.rs
 create mode 100644 subplot/subplot.rs
 create mode 100644 subplot/subplot.yaml
 create mode 100644 tests/subplot.rs

diff --git a/build.rs b/build.rs
new file mode 100644
index 0000000..fac2fff
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,7 @@
+use std::path::Path;
+
+fn main() {
+    println!("{:#?}", std::env::vars());
+    subplot_build::codegen(Path::new("pandoc-filter-diagram.md"))
+        .expect("failed to generate code with Subplot");
+}
diff --git a/subplot/subplot.rs b/subplot/subplot.rs
new file mode 100644
index 0000000..1496154
--- /dev/null
+++ b/subplot/subplot.rs
@@ -0,0 +1,30 @@
+// Rust support for running Subplot scenarios for
+// pandoc-filter-diagram.
+
+use subplotlib::steplibrary::runcmd::Runcmd;
+
+use std::env;
+use std::path::Path;
+
+#[step]
+#[context(Runcmd)]
+fn install_rust_program(context: &ScenarioContext, name: &str) {
+    println!("install_rust_program 1");
+    println!("install_rust_program: name={:?}", name);
+    let target_dir = Path::new(env!("CARGO_TARGET_DIR"));
+    let exe = target_dir.join("debug").join(name);
+    println!("install_rust_program: exe={:?} {}", exe, exe.exists());
+    assert!(exe.exists());
+    println!("install_rust_program 2");
+    let path = Path::new(&exe).parent().ok_or("No parent?")?;
+    println!("install_rust_program 3");
+
+    context.with_mut(
+        |context: &mut Runcmd| {
+            context.prepend_to_path(path);
+            Ok(())
+        },
+        false,
+    )?;
+    println!("install_rust_program 999");
+}
diff --git a/subplot/subplot.yaml b/subplot/subplot.yaml
new file mode 100644
index 0000000..14f5856
--- /dev/null
+++ b/subplot/subplot.yaml
@@ -0,0 +1,4 @@
+- given: an installed Rust program {name}
+  impl:
+    rust:
+      function: install_rust_program
diff --git a/tests/subplot.rs b/tests/subplot.rs
new file mode 100644
index 0000000..465b459
--- /dev/null
+++ b/tests/subplot.rs
@@ -0,0 +1 @@
+include!(concat!(env!("OUT_DIR"), "/pandoc-filter-diagram.rs"));
-- 
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