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build: add the healed-path option

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This is necessary in the unit tests, to ensure each test case use a
different exercises directory.

Update test/tests.zig to use the new healed-path option, ensuring that
each temp directory is removed.

In test case 3, 4 and 5, move case_step as the first step in the
dependency chain.  This will improve the build summary tree.

In test case 5, remove the dependency to heal_step, since it is not
necessary.
This commit is contained in:
Manlio Perillo 2023-05-05 16:13:57 +02:00
parent eda73b2fa8
commit 0cd86d2f9b
2 changed files with 89 additions and 39 deletions
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9
build.zig
View file

@ -118,11 +118,12 @@ pub fn build(b: *Build) !void {
\\
;
const use_healed = b.option(bool, "healed", "Run exercises from patches/healed") orelse false;
const healed = b.option(bool, "healed", "Run exercises from patches/healed") orelse false;
const override_healed_path = b.option([]const u8, "healed-path", "Override healed path");
const exno: ?usize = b.option(usize, "n", "Select exercise");
const healed_path = "patches/healed";
const work_path = if (use_healed) healed_path else "exercises";
const healed_path = if (override_healed_path) |path| path else "patches/healed";
const work_path = if (healed) healed_path else "exercises";
const header_step = PrintStep.create(b, logo);
@ -168,7 +169,7 @@ pub fn build(b: *Build) !void {
start_step.dependOn(&prev_step.step);
return;
} else if (use_healed and false) {
} else if (healed and false) {
// Special case when healed by the eowyn script, where we can make the
// code more efficient.
//

119
test/tests.zig
View file

@ -19,27 +19,28 @@ const Exercise = root.Exercise;
pub fn addCliTests(b: *std.Build, exercises: []const Exercise) *Step {
const step = b.step("test-cli", "Test the command line interface");
// We should use a temporary path, but it will make the implementation of
// `build.zig` more complex.
const work_path = "patches/healed";
fs.cwd().makePath(work_path) catch |err| {
return fail(step, "unable to make '{s}': {s}\n", .{ work_path, @errorName(err) });
};
const heal_step = HealStep.create(b, exercises, work_path);
{
// Test that `zig build -Dhealed -Dn=n test` selects the nth exercise.
const case_step = createCase(b, "case-1");
const tmp_path = makeTempPath(b) catch |err| {
return fail(step, "unable to make tmp path: {s}\n", .{@errorName(err)});
};
const heal_step = HealStep.create(b, exercises, tmp_path);
for (exercises[0 .. exercises.len - 1]) |ex| {
const n = ex.number();
if (ex.skip) continue;
const cmd = b.addSystemCommand(
&.{ b.zig_exe, "build", "-Dhealed", b.fmt("-Dn={}", .{n}), "test" },
);
const cmd = b.addSystemCommand(&.{
b.zig_exe,
"build",
"-Dhealed",
b.fmt("-Dhealed-path={s}", .{tmp_path}),
b.fmt("-Dn={}", .{n}),
"test",
});
cmd.setName(b.fmt("zig build -Dhealed -Dn={} test", .{n}));
cmd.expectExitCode(0);
@ -56,20 +57,34 @@ pub fn addCliTests(b: *std.Build, exercises: []const Exercise) *Step {
case_step.dependOn(&cmd.step);
}
step.dependOn(case_step);
const cleanup = b.addRemoveDirTree(tmp_path);
cleanup.step.dependOn(case_step);
step.dependOn(&cleanup.step);
}
{
// Test that `zig build -Dhealed -Dn=n test` skips disabled esercises.
const case_step = createCase(b, "case-2");
const tmp_path = makeTempPath(b) catch |err| {
return fail(step, "unable to make tmp path: {s}\n", .{@errorName(err)});
};
const heal_step = HealStep.create(b, exercises, tmp_path);
for (exercises[0 .. exercises.len - 1]) |ex| {
const n = ex.number();
if (!ex.skip) continue;
const cmd = b.addSystemCommand(
&.{ b.zig_exe, "build", "-Dhealed", b.fmt("-Dn={}", .{n}), "test" },
);
const cmd = b.addSystemCommand(&.{
b.zig_exe,
"build",
"-Dhealed",
b.fmt("-Dhealed-path={s}", .{tmp_path}),
b.fmt("-Dn={}", .{n}),
"test",
});
cmd.setName(b.fmt("zig build -Dhealed -Dn={} test", .{n}));
cmd.expectExitCode(0);
cmd.expectStdOutEqual("");
@ -80,15 +95,30 @@ pub fn addCliTests(b: *std.Build, exercises: []const Exercise) *Step {
case_step.dependOn(&cmd.step);
}
step.dependOn(case_step);
const cleanup = b.addRemoveDirTree(tmp_path);
cleanup.step.dependOn(case_step);
step.dependOn(&cleanup.step);
}
{
// Test that `zig build -Dhealed` process all the exercises in order.
const case_step = createCase(b, "case-3");
const tmp_path = makeTempPath(b) catch |err| {
return fail(step, "unable to make tmp path: {s}\n", .{@errorName(err)});
};
const heal_step = HealStep.create(b, exercises, tmp_path);
heal_step.step.dependOn(case_step);
// TODO: when an exercise is modified, the cache is not invalidated.
const cmd = b.addSystemCommand(&.{ b.zig_exe, "build", "-Dhealed" });
const cmd = b.addSystemCommand(&.{
b.zig_exe,
"build",
"-Dhealed",
b.fmt("-Dhealed-path={s}", .{tmp_path}),
});
cmd.setName("zig build -Dhealed");
cmd.expectExitCode(0);
cmd.step.dependOn(&heal_step.step);
@ -97,9 +127,10 @@ pub fn addCliTests(b: *std.Build, exercises: []const Exercise) *Step {
const verify = CheckStep.create(b, exercises, stderr, true);
verify.step.dependOn(&cmd.step);
case_step.dependOn(&verify.step);
const cleanup = b.addRemoveDirTree(tmp_path);
cleanup.step.dependOn(&verify.step);
step.dependOn(case_step);
step.dependOn(&cleanup.step);
}
{
@ -107,10 +138,22 @@ pub fn addCliTests(b: *std.Build, exercises: []const Exercise) *Step {
// in order.
const case_step = createCase(b, "case-4");
const tmp_path = makeTempPath(b) catch |err| {
return fail(step, "unable to make tmp path: {s}\n", .{@errorName(err)});
};
const heal_step = HealStep.create(b, exercises, tmp_path);
heal_step.step.dependOn(case_step);
// TODO: when an exercise is modified, the cache is not invalidated.
const cmd = b.addSystemCommand(
&.{ b.zig_exe, "build", "-Dhealed", "-Dn=1", "start" },
);
const cmd = b.addSystemCommand(&.{
b.zig_exe,
"build",
"-Dhealed",
b.fmt("-Dhealed-path={s}", .{tmp_path}),
"-Dn=1",
"start",
});
cmd.setName("zig build -Dhealed -Dn=1 start");
cmd.expectExitCode(0);
cmd.step.dependOn(&heal_step.step);
@ -119,9 +162,10 @@ pub fn addCliTests(b: *std.Build, exercises: []const Exercise) *Step {
const verify = CheckStep.create(b, exercises, stderr, false);
verify.step.dependOn(&cmd.step);
case_step.dependOn(&verify.step);
const cleanup = b.addRemoveDirTree(tmp_path);
cleanup.step.dependOn(&verify.step);
step.dependOn(case_step);
step.dependOn(&cleanup.step);
}
{
@ -133,18 +177,11 @@ pub fn addCliTests(b: *std.Build, exercises: []const Exercise) *Step {
cmd.expectExitCode(1);
expectStdErrMatch(cmd, exercises[0].hint);
cmd.step.dependOn(&heal_step.step);
cmd.step.dependOn(case_step);
case_step.dependOn(&cmd.step);
step.dependOn(case_step);
step.dependOn(&cmd.step);
}
// Don't add the cleanup step, since it may delete work_path while a test
// case is running.
//const cleanup = b.addRemoveDirTree(work_path);
//step.dependOn(&cleanup.step);
return step;
}
@ -378,6 +415,18 @@ fn heal(allocator: Allocator, exercises: []const Exercise, work_path: []const u8
}
}
/// This function is the same as the one in std.Build.makeTempPath, with the
/// difference that returns an error when the temp path cannot be created.
pub fn makeTempPath(b: *Build) ![]const u8 {
const rand_int = std.crypto.random.int(u64);
const tmp_dir_sub_path = "tmp" ++ fs.path.sep_str ++ Build.hex64(rand_int);
const path = b.cache_root.join(b.allocator, &.{tmp_dir_sub_path}) catch
@panic("OOM");
try b.cache_root.handle.makePath(tmp_dir_sub_path);
return path;
}
//
// Missing functions from std.Build.RunStep
//