Library with Tests

A library project with a test suite.

build.zig

const std = @import("std");
const buildx = @import("buildx");

pub fn build(b: *std.Build) void {
    _ = buildx.project(b, .{
        .name = "math",
        .root = "src/root.zig",
        .kind = .library,
        .tests = true,
    });
}

src/root.zig

pub fn add(a: i32, b: i32) i32 {
    return a + b;
}

test "add" {
    try std.testing.expectEqual(@as(i32, 5), add(2, 3));
}

Build & Test

zig build test

Output:

All tests passed.

Key Points

• kind = .library creates a library instead of executable
• tests = true adds a test step that compiles and runs tests
• The test step uses the same source file by default