diff --git a/core/src/main/java/ai/timefold/solver/core/impl/solver/termination/UnimprovedBestSolutionTermination.java b/core/src/main/java/ai/timefold/solver/core/impl/solver/termination/UnimprovedBestSolutionTermination.java
index 5211b108e7..dc391f12d9 100644
--- a/core/src/main/java/ai/timefold/solver/core/impl/solver/termination/UnimprovedBestSolutionTermination.java
+++ b/core/src/main/java/ai/timefold/solver/core/impl/solver/termination/UnimprovedBestSolutionTermination.java
@@ -71,6 +71,18 @@ public UnimprovedBestSolutionTermination(Double stopFlatLineDetectionRatio, Doub
         }
     }
 
+    public long getMinimalExecutionTimeMillis() {
+        return minimalExecutionTimeMillis;
+    }
+
+    public double getStopFlatLineDetectionRatio() {
+        return stopFlatLineDetectionRatio;
+    }
+
+    public double getNoStopFlatLineDetectionRatio() {
+        return noStopFlatLineDetectionRatio;
+    }
+
     // ************************************************************************
     // Lifecycle methods
     // ************************************************************************
diff --git a/core/src/test/java/ai/timefold/solver/core/config/solver/termination/TerminationConfigTest.java b/core/src/test/java/ai/timefold/solver/core/config/solver/termination/TerminationConfigTest.java
index db0bc3fbcf..1f600f32ef 100644
--- a/core/src/test/java/ai/timefold/solver/core/config/solver/termination/TerminationConfigTest.java
+++ b/core/src/test/java/ai/timefold/solver/core/config/solver/termination/TerminationConfigTest.java
@@ -84,6 +84,19 @@ void childWithTimeSpentLimitShouldNotInheritTimeSpentLimitFromParent() {
         assertThat(child.getMinutesSpentLimit()).isNull();
     }
 
+    @Test
+    void childWithUnimprovedPropertiesFromParent() {
+        TerminationConfig child = new TerminationConfig();
+        TerminationConfig parent = new TerminationConfig()
+                .withStopFlatLineDetectionRatio(0.5)
+                .withNoStopFlatLineDetectionRatio(0.1)
+                .withMinimalExecutionTimeSeconds(10L);
+        child.inherit(parent);
+        assertThat(child.getStopFlatLineDetectionRatio()).isEqualTo(0.5);
+        assertThat(child.getNoStopFlatLineDetectionRatio()).isEqualTo(0.1);
+        assertThat(child.getMinimalExecutionTimeSeconds()).isEqualTo(10L);
+    }
+
     @Test
     void checkMoveCountMetrics() {
         TerminationConfig parent = new TerminationConfig()
diff --git a/core/src/test/java/ai/timefold/solver/core/impl/solver/termination/TerminationFactoryTest.java b/core/src/test/java/ai/timefold/solver/core/impl/solver/termination/TerminationFactoryTest.java
index ab32c6adc4..284de54e9b 100644
--- a/core/src/test/java/ai/timefold/solver/core/impl/solver/termination/TerminationFactoryTest.java
+++ b/core/src/test/java/ai/timefold/solver/core/impl/solver/termination/TerminationFactoryTest.java
@@ -201,4 +201,55 @@ void bestScoreFeasible_requiresAtLeastOneFeasibleLevel() {
                 .isThrownBy(() -> terminationFactory.buildTermination(heuristicConfigPolicy))
                 .withMessageContaining("can only be used with a score type that has at least 1 feasible level");
     }
+
+    @Test
+    void buildBestScoreFeasible() {
+        var heuristicConfigPolicy = mock(HeuristicConfigPolicy.class);
+        when(heuristicConfigPolicy.getScoreDefinition()).thenReturn(new HardSoftScoreDefinition());
+        var terminationConfig = new TerminationConfig();
+        terminationConfig.setBestScoreFeasible(true);
+        var termination = TerminationFactory.create(terminationConfig).buildTermination(heuristicConfigPolicy);
+        assertThat(termination)
+                .isInstanceOf(BestScoreFeasibleTermination.class);
+    }
+
+    @Test
+    void buildStepCountLimit() {
+        var heuristicConfigPolicy = mock(HeuristicConfigPolicy.class);
+        when(heuristicConfigPolicy.getScoreDefinition()).thenReturn(new HardSoftScoreDefinition());
+        var terminationConfig = new TerminationConfig();
+        terminationConfig.setStepCountLimit(1);
+        var termination = TerminationFactory.create(terminationConfig).buildTermination(heuristicConfigPolicy);
+        assertThat(termination)
+                .isInstanceOf(StepCountTermination.class);
+    }
+
+    @Test
+    void buildUnimprovedStepCountLimit() {
+        var heuristicConfigPolicy = mock(HeuristicConfigPolicy.class);
+        when(heuristicConfigPolicy.getScoreDefinition()).thenReturn(new HardSoftScoreDefinition());
+        var terminationConfig = new TerminationConfig();
+        terminationConfig.withUnimprovedStepCountLimit(1);
+        var termination = TerminationFactory.create(terminationConfig).buildTermination(heuristicConfigPolicy);
+        assertThat(termination)
+                .isInstanceOf(UnimprovedStepCountTermination.class);
+    }
+
+    @Test
+    void buildUnimprovedBestScoreRatio() {
+        var terminationConfig = new TerminationConfig();
+        terminationConfig.setStopFlatLineDetectionRatio(0.5);
+        terminationConfig.setNoStopFlatLineDetectionRatio(0.1);
+        terminationConfig.setMinimalExecutionTimeSeconds(10L);
+        var termination = TerminationFactory.create(terminationConfig)
+                .buildTermination(mock(HeuristicConfigPolicy.class));
+        assertThat(termination)
+                .isInstanceOf(UnimprovedBestSolutionTermination.class);
+        assertThat(((UnimprovedBestSolutionTermination<?>) termination).getStopFlatLineDetectionRatio())
+                .isEqualTo(0.5);
+        assertThat(((UnimprovedBestSolutionTermination<?>) termination).getNoStopFlatLineDetectionRatio())
+                .isEqualTo(0.1);
+        assertThat(((UnimprovedBestSolutionTermination<?>) termination).getMinimalExecutionTimeMillis())
+                .isEqualTo(10000L);
+    }
 }
diff --git a/core/src/test/java/ai/timefold/solver/core/impl/solver/termination/UnimprovedBestSolutionTerminationTest.java b/core/src/test/java/ai/timefold/solver/core/impl/solver/termination/UnimprovedBestSolutionTerminationTest.java
index c0c1fb7d2f..2b6349a214 100644
--- a/core/src/test/java/ai/timefold/solver/core/impl/solver/termination/UnimprovedBestSolutionTerminationTest.java
+++ b/core/src/test/java/ai/timefold/solver/core/impl/solver/termination/UnimprovedBestSolutionTerminationTest.java
@@ -44,6 +44,7 @@ void testTermination() {
         when(clock.millis()).thenReturn(currentTime + 14_000);
         assertThat(termination.isPhaseTerminated(phaseScope)).isFalse();
 
+        assertThat(termination.calculatePhaseTimeGradient(phaseScope)).isEqualTo(-1.0);
     }
 
     @Test
@@ -125,5 +126,8 @@ void invalidTermination() {
                 .isThrownBy(() -> new UnimprovedBestSolutionTermination<TestdataSolution>(0.0, 1.0, 1L));
         assertThatIllegalArgumentException()
                 .isThrownBy(() -> new UnimprovedBestSolutionTermination<TestdataSolution>(1.0, 1.0, 0L));
+        assertThatIllegalArgumentException()
+                .isThrownBy(() -> new UnimprovedBestSolutionTermination<TestdataSolution>(0.1, 1.0, 1L)
+                        .calculateSolverTimeGradient(null));
     }
 }