testing seed setting

kmath-noa/build.gradle.kts

@@ -35,8 +35,6 @@ val cmakeCmd = "$thirdPartyDir/cmake/$cmakeArchive/bin/cmake"
 val ninjaCmd = "$thirdPartyDir/ninja/ninja"
 
 val generateJNIHeader by tasks.registering {
-    println("Path:")
-    println(System.getProperty("java.library.path"))
     doLast {
         exec {
             workingDir(projectDir.resolve("src/main/java/space/kscience/kmath/noa"))

kmath-noa/src/test/kotlin/space/kscience/kmath/noa/TestUtils.kt

@@ -8,6 +8,31 @@ package space.kscience.kmath.noa
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
+
+internal val SEED = 987654
+internal val TOLERANCE = 1e-6
+
+internal fun <T, ArrayT, TensorT : NoaTensor<T>, AlgebraT : NoaAlgebra<T, ArrayT, TensorT>>
+        AlgebraT.withCuda(block: AlgebraT.(Device) -> Unit): Unit {
+    this.block(Device.CPU)
+    if (cudaAvailable()) this.block(Device.CUDA(0))
+}
+
+internal fun NoaFloat.testingSetSeed(device: Device = Device.CPU): Unit {
+    setSeed(SEED)
+    val integral = randDiscrete(0, 100, IntArray(0), device = device).value()
+    val normal = randNormal(IntArray(0), device = device).value()
+    val uniform = randUniform(IntArray(0), device = device).value()
+    setSeed(SEED)
+    val nextIntegral = randDiscrete(0, 100, IntArray(0), device = device).value()
+    val nextNormal = randNormal(IntArray(0), device = device).value()
+    val nextUniform = randUniform(IntArray(0), device = device).value()
+    assertEquals(normal, nextNormal)
+    assertEquals(uniform, nextUniform)
+    assertEquals(integral, nextIntegral)
+}
+
+
 class TestUtils {
 
     @Test
@@ -26,5 +51,14 @@ class TestUtils {
         setNumThreads(numThreads)
         assertEquals(numThreads, getNumThreads())
     }
+
+    @Test
+    fun testSetSeed(): Unit = NoaFloat {
+        withCuda { device ->
+            testingSetSeed(device)
+        }
+    }!!
+
+
     
 }