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// SPDX-License-Identifier: Apache-2.0
package firrtlTests.annotationTests
import firrtl.analyses.InstanceKeyGraph.InstanceKey
import firrtl.annotations._
import firrtl.annotations.TargetToken._
import firrtl.annotations.TargetUtils._
import firrtl.testutils.FirrtlFlatSpec
class TargetUtilsSpec extends FirrtlFlatSpec {
behavior.of("instKeyPathToTarget")
it should "create a ModuleTarget for the top module" in {
val input = InstanceKey("Top", "Top") :: Nil
val expected = ModuleTarget("Top", "Top")
instKeyPathToTarget(input) should be(expected)
}
it should "create absolute InstanceTargets" in {
val input = InstanceKey("Top", "Top") ::
InstanceKey("foo", "Foo") ::
InstanceKey("bar", "Bar") ::
Nil
val expected = InstanceTarget("Top", "Top", Seq((Instance("foo"), OfModule("Foo"))), "bar", "Bar")
instKeyPathToTarget(input) should be(expected)
}
it should "support starting somewhere down the path" in {
val input = InstanceKey("Top", "Top") ::
InstanceKey("foo", "Foo") ::
InstanceKey("bar", "Bar") ::
InstanceKey("fizz", "Fizz") ::
Nil
val expected = InstanceTarget("Top", "Bar", Seq(), "fizz", "Fizz")
instKeyPathToTarget(input, Some("Bar")) should be(expected)
}
behavior.of("unfoldInstanceTargets")
it should "return nothing for ModuleTargets" in {
val input = ModuleTarget("Top", "Foo")
unfoldInstanceTargets(input) should be(Iterable())
}
it should "return all other InstanceTargets to the same instance" in {
val input = ModuleTarget("Top", "Top").instOf("foo", "Foo").instOf("bar", "Bar").instOf("fizz", "Fizz")
val expected =
input ::
ModuleTarget("Top", "Foo").instOf("bar", "Bar").instOf("fizz", "Fizz") ::
ModuleTarget("Top", "Bar").instOf("fizz", "Fizz") ::
Nil
unfoldInstanceTargets(input) should be(expected)
}
}
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