Improve tests

kmath-gsl/src/nativeTest/kotlin/GslMatrixRealTest.kt

@@ -3,11 +3,17 @@ package kscience.kmath.gsl
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
-internal class GslMatrixTest {
+internal class GslMatrixRealTest {
     @Test
     fun dimensions() = GslRealMatrixContext {
         val mat = produce(42, 24) { _, _ -> 0.0 }
         assertEquals(42, mat.rowNum)
         assertEquals(24, mat.colNum)
     }
+
+    @Test
+    fun get() = GslRealMatrixContext {
+        val mat = produce(1, 1) { _, _ -> 42.0 }
+        assertEquals(42.0, mat[0, 0])
+    }
 }

kmath-gsl/src/nativeTest/kotlin/GslRealContextTest.kt

@@ -12,7 +12,7 @@ import kotlin.test.assertEquals
 import kotlin.test.assertTrue
 import kotlin.time.measureTime
 
-internal class RealTest {
+internal class GslRealContextTest {
     @Test
     fun testScale() = GslRealMatrixContext {
         val ma = produce(10, 10) { _, _ -> 0.1 }