repository {
            id('org.test:moduleB:1.0') {
                variant('customVariant1') {
                    attribute 'format', 'custom'
                    artifact 'variant1'
                }
                variant('customVariant2') {
                    attribute 'format', 'custom'
                    artifact 'variant2'
                }
            }
        }

        when:

// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.

package compact

// parents maps a compact index of a tag to the compact index of the parent of
// this tag.
var parents = []ID{ // 775 elements
	// Entry 0 - 3F
	0x0000, 0x0000, 0x0001, 0x0001, 0x0000, 0x0004, 0x0000, 0x0006,
	0x0000, 0x0008, 0x0000, 0x000a, 0x000a, 0x000a, 0x000a, 0x000a,
	0x000a, 0x000a, 0x000a, 0x000a, 0x000a, 0x000a, 0x000a, 0x000a,

{
    "formatVersion": "1.0",
    "variants": [
        {
            "name": "api",
            "attributes": { "usage": "compile" },
            "files": [ { "name": "a.zip", "url": "a.zop" } ],
            "dependencies": [ { "group": "g1", "module": "m1", "version": { "prefers": "v1" } } ]
        }
    ]

Sometimes we want to add _more variants_ to or modify _existing variants_ of an existing component.
For example, if you <<cross_project_publications.adoc#targeting-different-platforms, added a variant of a Java library for a different platform>>, you may just want to declare this additional variant on the `java` component itself.
In general, declaring additional variants is often the best solution to publish _additional artifacts_.

        toComponent.getCandidatesForGraphVariantSelection().variants.addAll(toConfig)

        expect:
        dep.selectVariants(variantSelector, attributes([:]), toComponent, attributesSchema, [] as Set).variants == [toConfig]
    }

    @Unroll("selects variant '#expected' from target component (#scenario)")
    def "selects the variant from target component that matches the attributes"() {

		return cr
	}
	return r
}

// Variant represents a registered variant of a language as defined by BCP 47.
type Variant struct {
	ID  uint8
	str string
}

// ParseVariant parses and returns a Variant. An error is returned if s is not
// a valid variant.
func ParseVariant(s string) (v Variant, err error) {
	defer func() {
		if recover() != nil {
			v = Variant{}
			err = ErrSyntax
		}
	}()

        def variant = Stub(VariantGraphResolveState)
        variant.toString() >> name
        variant.name >> name
        def configuration = Stub(ConfigurationGraphResolveState)
        component.getConfiguration(name) >> configuration
        configuration.name >> name
        configuration.toString() >> name
        configuration.asVariant() >> variant
        configuration.metadata >> metadata

	flag.Parse()

	var variants []Variant
	if *genExp {
		variants = expVariants
	} else if *genGeneric {
		variants = genericVariants
	} else {
		variants = traditionalVariants
	}
	for i := range variants {
		generate(&variants[i])
	}
}

// generate generates the code for variant `v` into a file named by `v.Path`.
func generate(v *Variant) {

  compileTestVariantSwift -> linkTestVariant -> installTestVariant -> xcTestVariant [dir=back, style=dashed]
  compileTestVariantSwift[label=<compile<i>Variant</i>Swift>]
  linkTestVariant[label=<link<i>Variant</i>>]
  installTestVariant[label=<installTest<i>Variant</i>>]
  xcTestVariant[label=<xcTest<i>Variant</i>>]

        return Mock(ResolvedVariantSet) {
            asDescribable() >> Describables.of("mock producer")
            getVariants() >> variants
            getOverriddenAttributes() >> ImmutableAttributes.EMPTY
        }
    }

    private List<TransformedVariant> transformedVariants(List<ResolvedVariant> variants) {
        variants.collect {