From da46ea923c52c586cb9351d922281df6f1f36bf4 Mon Sep 17 00:00:00 2001
From: Gleb Minaev <43728100+lounres@users.noreply.github.com>
Date: Tue, 28 Jun 2022 15:07:09 +0300
Subject: [PATCH] Extended test for NumberedPolynomial

---
 .../kmath/functions/NumberedPolynomialTest.kt | 80 ++++++++++++++++++-
 1 file changed, 78 insertions(+), 2 deletions(-)

diff --git a/kmath-functions/src/commonTest/kotlin/space/kscience/kmath/functions/NumberedPolynomialTest.kt b/kmath-functions/src/commonTest/kotlin/space/kscience/kmath/functions/NumberedPolynomialTest.kt
index 223ff5d92..dac7c1a62 100644
--- a/kmath-functions/src/commonTest/kotlin/space/kscience/kmath/functions/NumberedPolynomialTest.kt
+++ b/kmath-functions/src/commonTest/kotlin/space/kscience/kmath/functions/NumberedPolynomialTest.kt
@@ -1456,7 +1456,7 @@ class NumberedPolynomialTest {
         }
     }
     @Test
-    fun test_countOfVariables() {
+    fun test_degrees() {
         val o = Rational(0)
         RationalField.numberedPolynomialSpace {
             assertEquals(
@@ -1612,7 +1612,7 @@ class NumberedPolynomialTest {
         }
     }
     @Test
-    fun test_degrees() {
+    fun test_countOfVariables() {
         val o = Rational(0)
         RationalField.numberedPolynomialSpace {
             assertEquals(
@@ -1663,4 +1663,80 @@ class NumberedPolynomialTest {
             )
         }
     }
+    @Test
+    fun test_RF_countOfVariables() {
+        val o = Rational(0)
+        RationalField.numberedRationalFunctionSpace {
+            assertEquals(
+                0,
+                NumberedRationalFunction(
+                    NumberedPolynomial {}
+                ).countOfVariables,
+                "test 1"
+            )
+            assertEquals(
+                0,
+                NumberedRationalFunction(
+                    NumberedPolynomial {},
+                    NumberedPolynomial {}
+                ).countOfVariables,
+                "test 2"
+            )
+            assertEquals(
+                0,
+                NumberedRationalFunction(
+                    NumberedPolynomial {
+                        o {}
+                    }
+                ).countOfVariables,
+                "test 3"
+            )
+            assertEquals(
+                3,
+                NumberedRationalFunction(
+                    NumberedPolynomial {
+                        o { 1 pow 1u; 2 pow 2u; 3 pow 3u }
+                    }
+                ).countOfVariables,
+                "test 4"
+            )
+            assertEquals(
+                3,
+                NumberedRationalFunction(
+                    NumberedPolynomial {
+                        o { 2 pow 1u; 4 pow 1u }
+                    },
+                    NumberedPolynomial {
+                        o { 1 pow 0u; 3 pow 2u; 5 pow 0u }
+                    }
+                ).countOfVariables,
+                "test 5"
+            )
+            assertEquals(
+                3,
+                NumberedRationalFunction(
+                    NumberedPolynomial {
+                        o {}
+                        o { 2 pow 1u }
+                        o { 1 pow 2u; 3 pow 1u }
+                    }
+                ).countOfVariables,
+                "test 6"
+            )
+            assertEquals(
+                4,
+                NumberedRationalFunction(
+                    NumberedPolynomial {
+                        o {}
+                        o { 1 pow 1u; 2 pow 2u }
+                        o { 1 pow 2u; 3 pow 1u }
+                    }, NumberedPolynomial {
+                        o { 2 pow 1u; 3 pow 2u }
+                        o { 4 pow 4u }
+                    }
+                ).countOfVariables,
+                "test 7"
+            )
+        }
+    }
 }
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