def "reasonable error message when a user rule throws an exception (#rule)"() {
        given:
        repository {
            'org:testA:1.0' {
                variant('runtime') {
                    capability('org', 'testA', '1.0')
                    capability('cap')
                }
            }
            'org:testB:1.0' {
                variant('runtime') {
                    capability('org', 'testB', '1.0')

-- a/a.go --
package a

func init() {
	println("package 'a' init: launch the missiles!")
}

func AFunc() int {
	return 42
}
-- a/a_test.go --
package a

import "testing"

func TestA(t *testing.T) {
	if AFunc() != 42 {
		t.Fatalf("bad!")
	}
}
-- aa/aa.go --
package aa

import "M/it"

func AA(y int) int {
	c := it.Conc{}
	x := it.Callee(&c)
	println(x, y)
	return 0
}

-- a/a.go --
package a

import "M/f"

var G int

func AFunc() int {
	G = 1
	return f.Id()
}
-- a/a_test.go --
package a

import "testing"

func TestA(t *testing.T) {
	if AFunc() != 42 {
		t.Fatalf("bad!")
	}
}
-- b/b.go --
package b

import (
	"M/a"
	"M/d"
)

func BFunc() int {
	return -d.FortyTwo + a.AFunc()
}
-- b/b_test.go --

package a

import "M/f"

func init() {
	println("package 'a' init: launch the missiles!")
}

func AFunc() int {
	return f.Id()
}
-- a/a_test.go --
package a

import "testing"

func TestA(t *testing.T) {
	if AFunc() != 42 {
		t.Fatalf("bad!")
	}
}
-- b/b.go --
package b

func init() {
	println("package 'b' init: release the kraken")
}

func BFunc() int {
	return -42
}

		{"TestFoo/", "", "TestBar", "x", false, false},
		{"TestFoo/bar/baz", "", "TestBar", "x/bar/baz", false, false},

		{"A/B|C/D", "", "TestA", "B", true, false},
		{"A/B|C/D", "", "TestC", "D", true, false},
		{"A/B|C/D", "", "TestA", "C", false, false},

		// subtests only
		{"", "", "TestFoo", "x", true, false},
		{"/", "", "TestFoo", "x", true, false},
		{"./", "", "TestFoo", "x", true, false},

! stderr 'build\\t-pgo='

-- go.mod --
module test
go 1.20
-- a/a1/a1.go --
package main
import _ "test/dep"
func main() {}
-- a/a1/a1_test.go --
package main
import "testing"
func TestA(*testing.T) {}
-- a/a1/external_test.go --
package main_test
import "testing"
func TestExternal(*testing.T) {}
-- a/a1/default.pgo --
-- nopgo/nopgo.go --
package main
func main() {}
-- dep/dep.go --

Especificamente, para ver o Uvicorn, Starlette e FastAPI comparados entre si (entre diversas outras ferramentas).

Quanto mais simples o problema resolvido pela ferramenta, melhor será a performance. E a maioria das análises não testa funcionalidades adicionais que são oferecidas pela ferramenta.

A hierarquia é:

* **Uvicorn**: um servidor ASGI
    * **Starlette**: (utiliza Uvicorn) um microframework web

-- go.mod --
module test
go 1.20
-- a/a.go --
package main
import _ "test/dep"
import _ "test/dep2"
func main() {}
-- a/a_test.go --
package main
import "testing"
import _ "test/testdep"
func TestA(*testing.T) {}
-- a/default.pgo --
-- b/b.go --
package main
import _ "test/dep"
import _ "test/dep2"
func main() {}
-- b/b_test.go --
package main
import "testing"
import _ "test/testdep"

  // Test a trivial lambda that doubles an integer.
  Callable c(
      TFLIB_CALLABLE_ADAPTOR([](Integer a) { return Integer(a.get() * 2); }));
  EXPECT_EQ(c.Call<Integer>(Integer(3))->get(), 6);
  // Testa lambda that has captured state (call count).
  int call_count = 0;
  Callable f(TFLIB_CALLABLE_ADAPTOR([&call_count](Integer a, Integer b) {
    call_count++;
    return Integer(a.get() + b.get());
  }));

        given:
        repository {
            'org:testA:1.0' {
                variant('runtime') {
                    capability('org', 'testA', '1.0')
                    capability('cap')
                }
            }
            'org:testB:1.0' {
                variant('runtime') {
                    capability('org', 'testB', '1.0')