1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193

mod assertions;
mod compile;
mod loader;
mod run;

use std::{
    fmt::{self, Debug, Display, Formatter},
    path::{Path, PathBuf},
    process::{Command, Output},
};

use anyhow::{Context, Error};
use rayon::prelude::*;

pub use crate::loader::{Category, ExitCondition, FullName, Test};

pub fn discover(test_directory: impl AsRef<Path>) -> Result<TestSuite, Error> {
    log::info!("Looking for tests");
    let test_directory = test_directory.as_ref();

    let tests = loader::load(test_directory)?;

    Ok(TestSuite { tests })
}

#[derive(Debug)]
pub struct TestSuite {
    tests: Vec<Test>,
}

impl TestSuite {
    pub fn run(&self, ctx: &TestContext, cb: &dyn Callbacks) {
        self.tests.par_iter().for_each(|test| {
            let name = &test.name;

            if !cb.should_run(name) {
                cb.on_skip(name);
                return;
            }

            match test.run(ctx) {
                Outcome::Skipped => cb.on_skip(name),
                Outcome::Pass => cb.on_pass(name),
                Outcome::Fail { errors, output } => {
                    cb.on_fail(name, errors, output)
                },
                Outcome::Bug(error) => cb.on_bug(name, error),
            }
        });
    }
}

pub trait Callbacks: Sync {
    fn on_pass(&self, name: &FullName);
    fn on_skip(&self, name: &FullName);
    fn on_bug(&self, name: &FullName, error: Error);
    fn on_fail(&self, name: &FullName, errors: Vec<Error>, output: Output);
    /// Should this test be executed?
    fn should_run(&self, _name: &FullName) -> bool { true }
}

#[derive(Debug)]
pub enum Outcome {
    Skipped,
    Pass,
    Fail { errors: Vec<Error>, output: Output },
    Bug(Error),
}

#[derive(Debug, Clone, PartialEq)]
pub struct TestContext {
    cache_dir: PathBuf,
    pub rune_binary: PathBuf,
    pub rune_project_dir: PathBuf,
    pub target_dir: PathBuf,
    pub engine: String,
}

impl TestContext {
    pub fn build(
        rune_project_dir: impl Into<PathBuf>,
        engine: String,
    ) -> Result<Self, Error> {
        TestContext::build_inner(
            rune_project_dir,
            engine,
            cfg!(debug_assertions),
        )
    }

    fn build_inner(
        rune_project_dir: impl Into<PathBuf>,
        engine: String,
        debug: bool,
    ) -> Result<Self, Error> {
        let rune_project_dir = rune_project_dir.into();
        let target_dir = rune_project_dir.join("target");
        let cache_dir = target_dir.join("integration-tests");

        log::debug!("Compiling `rune` in release mode");

        let mut cmd = Command::new("cargo");
        cmd.arg("build").arg("--package=hotg-rune-cli");

        if !debug {
            cmd.arg("--release");
        }

        let status = cmd
            .current_dir(&rune_project_dir)
            .status()
            .context("Unable to invoke cargo. Is it installed?")?;
        anyhow::ensure!(status.success(), "Compilation failed");

        let dir = if debug { "debug" } else { "release" };
        let rune_binary = target_dir.join(dir).join("rune");

        anyhow::ensure!(
            rune_binary.exists(),
            "The compiler should have generated \"{}\"",
            rune_binary.display()
        );

        Ok(TestContext {
            engine,
            cache_dir,
            rune_binary,
            rune_project_dir,
            target_dir,
        })
    }

    pub fn rune_cmd(&self) -> Command {
        let mut cmd = Command::new(&self.rune_binary);
        cmd.arg("--unstable")
            .arg("--colour=never")
            .arg("--rune-repo-dir")
            .arg(&self.rune_project_dir);

        cmd.env("RUST_LOG", "debug,wasmer_compiler_cranelift=warn");
        cmd
    }

    fn cache_dir(&self, name: &FullName) -> PathBuf {
        let FullName {
            category,
            exit_condition,
            name,
        } = name;
        let family = format!("{}-{}", category, exit_condition);
        self.cache_dir.join(family).join(name)
    }
}

#[derive(Debug, Clone)]
struct CommandOutput(Output);

impl CommandOutput {
    fn new(output: Output) -> Self { CommandOutput(output) }
}

impl Display for CommandOutput {
    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
        let CommandOutput(Output {
            status,
            stderr,
            stdout,
        }) = self;

        match (status.success(), status.code()) {
            (false, Some(code)) => writeln!(f, "Command failed with {}", code)?,
            (true, Some(code)) => {
                writeln!(f, "Command exited successfully with {}", code)?
            },
            (true, None) => writeln!(f, "Command failed")?,
            (false, None) => writeln!(f, "Command exited successfully")?,
        }

        if let Ok(stdout) = std::str::from_utf8(stdout) {
            if !stdout.trim().is_empty() {
                writeln!(f, "\nStdout:\n{}", stdout)?;
            }
        }

        if let Ok(stderr) = std::str::from_utf8(stderr) {
            if !stderr.trim().is_empty() {
                writeln!(f, "\nStderr:\n{}", stderr)?;
            }
        }

        Ok(())
    }
}