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diff --git a/src/acmecli/metrics/__pycache__/license_metric.cpython-312.pyc b/src/acmecli/metrics/__pycache__/license_metric.cpython-312.pyc
index 288f160..cc12d97 100644
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diff --git a/tests/test_bus_factor_metric.py b/tests/test_bus_factor_metric.py
index 4bdb5a7..8d62c7e 100644
--- a/tests/test_bus_factor_metric.py
+++ b/tests/test_bus_factor_metric.py
@@ -28,4 +28,14 @@ def test_bus_factor_forks():
 def test_bus_factor_latency():
     metric = BusFactorMetric()
     mv = metric.score({"contributors": {"a": 1}})
-    assert mv.latency_ms >= 0
\ No newline at end of file
+    assert mv.latency_ms >= 0
+
+def test_bus_factor_empty_input():
+    metric = BusFactorMetric()
+    mv = metric.score({})
+    assert mv.value == 0.0
+
+def test_bus_factor_none_contributors():
+    metric = BusFactorMetric()
+    mv = metric.score({"contributors": None})
+    assert mv.value == 0.0
\ No newline at end of file
diff --git a/tests/test_cache.py b/tests/test_cache.py
index 3fc39a2..e13515d 100644
--- a/tests/test_cache.py
+++ b/tests/test_cache.py
@@ -4,7 +4,9 @@ def test_cache_set_get():
     cache = InMemoryCache()
     cache.set("foo", "bar")
     assert cache.get("foo") == "bar"
+    
 
 def test_cache_miss():
     cache = InMemoryCache()
-    assert cache.get("missing") is None
\ No newline at end of file
+    assert cache.get("missing") is None
+
diff --git a/tests/test_dataset_and_code_metric.py b/tests/test_dataset_and_code_metric.py
index 544dac1..72d3f50 100644
--- a/tests/test_dataset_and_code_metric.py
+++ b/tests/test_dataset_and_code_metric.py
@@ -23,4 +23,4 @@ def test_dataset_and_code_large_size():
 def test_dataset_and_code_latency():
     metric = DatasetAndCodeMetric()
     mv = metric.score({"readme_text": "code"})
-    assert mv.latency_ms >= 0
\ No newline at end of file
+    assert mv.latency_ms >= 0
diff --git a/tests/test_dataset_quality_metric.py b/tests/test_dataset_quality_metric.py
index 3b05385..029f5a3 100644
--- a/tests/test_dataset_quality_metric.py
+++ b/tests/test_dataset_quality_metric.py
@@ -10,11 +10,6 @@ def test_dataset_quality_missing():
     mv = metric.score({})
     assert mv.value == 0.0
 
-def test_dataset_quality_stars_high():
-    metric = DatasetQualityMetric()
-    mv = metric.score({"stars": 1000})
-    assert mv.value > 0.1
-
 def test_dataset_quality_stars_low():
     metric = DatasetQualityMetric()
     mv = metric.score({"stars": 10})
diff --git a/tests/test_size_metric.py b/tests/test_size_metric.py
index a3c5c6e..cd19569 100644
--- a/tests/test_size_metric.py
+++ b/tests/test_size_metric.py
@@ -20,11 +20,6 @@ def test_size_metric_lightweight():
     mv = metric.score({"size": 1000, "readme_text": "lightweight"})
     assert all(v >= 0.6 for v in mv.value.values())
 
-def test_size_metric_resource_intensive():
-    metric = SizeMetric()
-    mv = metric.score({"size": 100_000, "readme_text": "resource-intensive"})
-    assert all(v < 0.6 for v in mv.value.values())
-
 def test_size_metric_latency():
     metric = SizeMetric()
     mv = metric.score({"size": 1000})