1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
// See LICENSE for license details.
package chiselTests.aop
import chisel3.testers.{BasicTester, TesterDriver}
import chiselTests.ChiselFlatSpec
import chisel3._
import chisel3.aop.injecting.InjectingAspect
class SubmoduleManipulationTester extends BasicTester {
val moduleSubmoduleA = Module(new SubmoduleA)
}
class SubmoduleA extends Module {
val io = IO(new Bundle {
val out = Output(Bool())
})
io.out := false.B
}
class SubmoduleB extends Module {
val io = IO(new Bundle {
val in = Input(Bool())
})
}
class AspectTester(results: Seq[Int]) extends BasicTester {
val values = VecInit(results.map(_.U))
val counter = RegInit(0.U(results.length.W))
counter := counter + 1.U
when(counter >= values.length.U) {
stop()
}.otherwise {
when(reset.asBool() === false.B) {
printf("values(%d) = %d\n", counter, values(counter))
assert(counter === values(counter))
}
}
}
class InjectionSpec extends ChiselFlatSpec {
val correctValueAspect = InjectingAspect(
{dut: AspectTester => Seq(dut)},
{dut: AspectTester =>
for(i <- 0 until dut.values.length) {
dut.values(i) := i.U
}
}
)
val wrongValueAspect = InjectingAspect(
{dut: AspectTester => Seq(dut)},
{dut: AspectTester =>
for(i <- 0 until dut.values.length) {
dut.values(i) := (i + 1).U
}
}
)
val manipulateSubmoduleAspect = InjectingAspect(
{dut: SubmoduleManipulationTester => Seq(dut)},
{dut: SubmoduleManipulationTester =>
val moduleSubmoduleB = Module(new SubmoduleB)
moduleSubmoduleB.io.in := dut.moduleSubmoduleA.io.out
//if we're here then we've elaborated correctly
stop()
}
)
"Test" should "pass if inserted the correct values" in {
assertTesterPasses{ new AspectTester(Seq(0, 1, 2)) }
}
"Test" should "fail if inserted the wrong values" in {
assertTesterFails{ new AspectTester(Seq(9, 9, 9)) }
}
"Test" should "pass if pass wrong values, but correct with aspect" in {
assertTesterPasses({ new AspectTester(Seq(9, 9, 9))} , Nil, Seq(correctValueAspect) ++ TesterDriver.verilatorOnly)
}
"Test" should "pass if pass wrong values, then wrong aspect, then correct aspect" in {
assertTesterPasses(
new AspectTester(Seq(9, 9, 9)), Nil, Seq(wrongValueAspect, correctValueAspect) ++ TesterDriver.verilatorOnly
)
}
"Test" should "fail if pass wrong values, then correct aspect, then wrong aspect" in {
assertTesterFails({ new AspectTester(Seq(9, 9, 9))} , Nil, Seq(correctValueAspect, wrongValueAspect))
}
"Test" should "pass if the submodules in SubmoduleManipulationTester can be manipulated by manipulateSubmoduleAspect" in {
assertTesterPasses({ new SubmoduleManipulationTester} , Nil, Seq(manipulateSubmoduleAspect) ++ TesterDriver.verilatorOnly)
}
}
|
