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// SPDX-License-Identifier: Apache-2.0
package chiselTests
import chisel3._
import chisel3.testers.BasicTester
class ParameterizedModule(invert: Boolean) extends Module {
val io = IO(new Bundle {
val in = Input(Bool())
val out = Output(Bool())
})
if (invert) {
io.out := !io.in
} else {
io.out := io.in
}
}
/** A simple test to check Module deduplication doesn't affect correctness (two
* modules with the same name but different contents aren't aliased). Doesn't
* check that deduplication actually happens, though.
*/
class ParameterizedModuleTester() extends BasicTester {
val invert = Module(new ParameterizedModule(true))
val noninvert = Module(new ParameterizedModule(false))
invert.io.in := true.B
noninvert.io.in := true.B
assert(invert.io.out === false.B)
assert(noninvert.io.out === true.B)
stop()
}
class ParameterizedModuleSpec extends ChiselFlatSpec {
"Different parameterized modules" should "have different behavior" in {
assertTesterPasses(new ParameterizedModuleTester())
}
}
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