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testing_introduction.zig (758B) - Raw

      1 const std = @import("std");
      2 
      3 test "expect addOne adds one to 41" {
      4 
      5     // The Standard Library contains useful functions to help create tests.
      6     // `expect` is a function that verifies its argument is true.
      7     // It will return an error if its argument is false to indicate a failure.
      8     // `try` is used to return an error to the test runner to notify it that the test failed.
      9     try std.testing.expect(addOne(41) == 42);
     10 }
     11 
     12 test addOne {
     13     // A test name can also be written using an identifier.
     14     // This is a doctest, and serves as documentation for `addOne`.
     15     try std.testing.expect(addOne(41) == 42);
     16 }
     17 
     18 /// The function `addOne` adds one to the number given as its argument.
     19 fn addOne(number: i32) i32 {
     20     return number + 1;
     21 }
     22 
     23 // test