julia enhanced unit testing / published by https://github.com/dacr/code-examples-manager #bc38dba0-1154-11eb-1e79-95118e40ce6c/edeeb994069445b5eb87459370276a084f544132

testing-unittests-2.jl

#!/usr/bin/env julia
## summary : julia enhanced unit testing
## keywords : unit-tests, julia, script, @testable
## publish : gist
## authors : David Crosson
## license : none
## id : bc38dba0-1154-11eb-1e79-95118e40ce6c
## created-on : 2020-10-19T17:16:25Z
## managed-by : https://github.com/dacr/code-examples-manager
## execution : julia script (https://julialang.org/) - run as follow 'julia scriptname.jl' or directly thanks to the shebang

using Test

# ---------------------------------------------------------------------------------

@testset "julia" begin
  @testset "functions" begin
    @testset "can be defined as mathematical functions" begin
      f(x) = 2x^2 + 1
      @test f(2) == 9
    end
  end
  @testset "vectors" begin
    @testset "support basic operations" begin
        @test [1, 1] + [2, 3] == [3, 4]
        @test [1, 1] * 2 == [2, 2]
    end
  end
end

# ---------------------------------------------------------------------------------

@testset "trigonometric identities" begin
           θ = 2 / 3 * π
           @test sin(-θ) ≈ -sin(θ)
           @test cos(-θ) ≈ cos(θ)
           @test sin(2θ) ≈ 2 * sin(θ) * cos(θ)
           @test cos(2θ) ≈ cos(θ)^2 - sin(θ)^2
       end;

# ---------------------------------------------------------------------------------
@testset "testing logs output" begin
  function foo(n)
      @info "Doing foo with n=$n"
      for i=1:n
          @debug "Iteration $i"
      end
      42
  end
  @test_logs (:info,"Doing foo with n=2") foo(2)
end;
# ---------------------------------------------------------------------------------