t.Fatalf("wrong x.i after swap: x.i=%p want %p", x.i.Load(), q)
		}
	}
	if x.before != magicptr || x.after != magicptr {
		t.Fatalf("wrong magic: %#x _ %#x != %#x _ %#x", x.before, x.after, magicptr, magicptr)
	}
}

func TestLoadInt32(t *testing.T) {
	var x struct {
		before int32
		i      int32
		after  int32
	}
	x.before = magic32
	x.after = magic32

	}
	left, err := v.UnmarshalMsg(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after UnmarshalMsg(): %q", len(left), left)
	}

	left, err = msgp.Skip(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after Skip(): %q", len(left), left)
	}
}

func BenchmarkMarshalMsgBaseOptions(b *testing.B) {
	v := BaseOptions{}
	b.ReportAllocs()

    }

    def "convention value ignored after value has been set"() {
        def property = propertyWithNoValue()
        property.set(someValue())

        expect:
        property.convention(someOtherValue())
        property.get() == someValue()
    }

    def "convention provider ignored after value has been set"() {
        def provider = brokenSupplier()

	if r.UnreadRune() == nil {
		t.Error("expected error after UnreadRune (1)")
	}
	// Test error after Read.
	_, _, err = r.ReadRune() // reset state
	if err != nil {
		t.Error("unexpected error on ReadRune (2):", err)
	}
	_, err = r.Read(buf)
	if err != nil {
		t.Error("unexpected error on Read (2):", err)
	}
	if r.UnreadRune() == nil {
		t.Error("expected error after Read (2)")
	}
	// Test error after ReadByte.

    }

    def "cannot set to empty map after changes disallowed"() {
        given:
        property.set(someValue())
        property.disallowChanges()
        when:
        property.empty()
        then:
        def e = thrown IllegalStateException
        e.message == 'The value for this property cannot be changed any further.'
    }

    def "cannot add entry after value finalized"() {
        given:

        ex.message == "Cannot add a null element to a property of type ${type().simpleName}."
    }

    def "ignores convention after element added"() {
        expect:
        property.add("a")
        property.convention(["other"])
        assertValueIs(["a"])
    }

    def "ignores convention after element added using provider"() {
        expect:
        property.add(Providers.of("a"))
        property.convention(["other"])

		m.deps.SetPanicOnExit0(true)
	}
}

// after runs after all testing.
func (m *M) after() {
	m.afterOnce.Do(func() {
		m.writeProfiles()
	})

	// Restore PanicOnExit0 after every run, because we set it to true before
	// every run. Otherwise, if m.Run is called multiple times the behavior of
	// os.Exit(0) will not be restored after the second run.
	if *panicOnExit0 {

        then:
        def e = thrown(IllegalStateException)
        e.message == 'The value for <display> is final and cannot be changed any further.'
    }

    def "resolves path to file when queried after implicitly finalized"() {
        given:
        def file = new File('one')
        collection.from('a')

        when:
        collection.implicitFinalizeValue()

        then:

// after is the regexp suffix following after the repetition operator.
// repeat returns an updated 'after' and an error, if any.
func (p *parser) repeat(op Op, min, max int, before, after, lastRepeat string) (string, error) {
	flags := p.flags
	if p.flags&PerlX != 0 {
		if len(after) > 0 && after[0] == '?' {
			after = after[1:]
			flags ^= NonGreedy
		}
		if lastRepeat != "" {

 * Cache} interfaces. The {@code asMap} view (and its collection views) have <i>weakly consistent
 * iterators</i>. This means that they are safe for concurrent use, but if other threads modify the
 * cache after the iterator is created, it is undefined which of these changes, if any, are
 * reflected in that iterator. These iterators never throw {@link ConcurrentModificationException}.
 *