diff --git a/tests/test_core_assembly.py b/tests/test_core_assembly.py
index c1d673b..16d5e8e 100644
--- a/tests/test_core_assembly.py
+++ b/tests/test_core_assembly.py
@@ -1,4 +1,3 @@
-import pytest
 
 from genomeinfo.core.assembly import AssemblyInfo
 from genomeinfo.interface import GenomeInfo
@@ -7,20 +6,14 @@
 def test_assembly_info_human():
     db = GenomeInfo.connect()
 
-    try:
-        assembly = db.assembly_info(assembly="GRCh38")
-    except Exception as e:
-        pytest.fail(f"Unexpected error: {e}")
+    assembly = db.assembly_info(assembly="GRCh38")
 
     assert isinstance(assembly, AssemblyInfo)
     assert assembly.assembly == "GRCh38"
     assert assembly.species == "homo_sapiens"
     assert assembly.common_name == "human"
 
-    try:
-        assembly = db.assembly_info(assembly="hg38")
-    except Exception as e:
-        pytest.fail(f"Unexpected error: {e}")
+    assembly = db.assembly_info(assembly="hg38")
 
     assert isinstance(assembly, AssemblyInfo)
     assert assembly.assembly == "hg38"
diff --git a/tests/test_core_info.py b/tests/test_core_info.py
index 300ded0..d863507 100644
--- a/tests/test_core_info.py
+++ b/tests/test_core_info.py
@@ -9,10 +9,7 @@ def test_method_attachment():
 def test_method_execution():
     genome_info = GenomeInfo.connect()
 
-    try:
-        genome_info.info()
-    except Exception as e:
-        AssertionError(f"Method execution failed: {e!s}")
+    genome_info.info()
 
 
 def test_get_species_info():
@@ -22,10 +19,10 @@ def test_get_species_info():
         genome_info, "get_species_info"
     ), "Method get_species_info is not attached"
 
-    try:
-        genome_info.get_species_info("homo_sapiens")
-    except Exception as e:
-        AssertionError(f"Method execution failed: {e!s}")
+    rs = genome_info.get_species_info("homo_sapiens")
+
+    assert rs is not None, "The result is None"
+
 
 
 def test_get_assembly_metadata_ncbi():
@@ -35,19 +32,16 @@ def test_get_assembly_metadata_ncbi():
         genome_info, "get_assembly_metadata"
     ), "Method get_assembly_metadata is not attached"
 
-    try:
-        genome_info.get_assembly_metadata("GRCh38")
-    except Exception as e:
-        AssertionError(f"Method execution failed: {e!s}")
+    rs = genome_info.get_assembly_metadata("GRCh38")
+
+    assert rs is not None, "The result is None"
+
 
 
 def test_get_assembly_metadata_ucsc():
     genome_info = GenomeInfo.connect()
 
-    try:
-        rs = genome_info.get_assembly_metadata("hg38")
-    except Exception as e:
-        AssertionError(f"Method execution failed: {e!s}")
+    rs = genome_info.get_assembly_metadata("hg38")
 
 
     assert rs is not None, "The result is None"
@@ -57,10 +51,7 @@ def test_get_assembly_metadata_ucsc():
 def test_get_assembly_metadata_t2t():
     genome_info = GenomeInfo.connect()
 
-    try:
-        rs = genome_info.get_assembly_metadata("T2T-CHM13")
-    except Exception as e:
-        AssertionError(f"Method execution failed: {e!s}")
+    rs = genome_info.get_assembly_metadata("T2T-CHM13")
 
     assert rs is not None, "The result is None"
     assert len(rs) > 0, "The result if empty"
@@ -69,10 +60,7 @@ def test_get_assembly_metadata_t2t():
 def test_available_assemblies():
     genome_info = GenomeInfo.connect()
 
-    try:
-        rs = genome_info.available_assemblies()
-    except Exception as e:
-        AssertionError(f"Method execution failed: {e!s}")
+    rs = genome_info.available_assemblies()
 
     assert rs is not None, "The result is None"
     assert len(rs) > 0, "The result is empty"
@@ -81,10 +69,7 @@ def test_available_assemblies():
 def test_get_organism_info():
     genome_info = GenomeInfo.connect()
 
-    try:
-        rs = genome_info.get_organism_info("human")
-    except Exception as e:
-        AssertionError(f"Method execution failed: {e!s}")
+    rs = genome_info.get_organism_info("human")
 
     assert rs is not None, "The result is None"
     assert len(rs) > 0, "The result is empty"
@@ -93,10 +78,7 @@ def test_get_organism_info():
 def test_available_patches():
     genome_info = GenomeInfo.connect()
 
-    try:
-        rs = genome_info.available_patches()
-    except Exception as e:
-        AssertionError(f"Method execution failed: {e!s}")
+    rs = genome_info.available_patches()
 
     assert rs is not None, "The result is None"
     assert len(rs) > 0, "The result is empty"
@@ -105,18 +87,12 @@ def test_available_patches():
 def test_available_accessions():
     genome_info = GenomeInfo.connect()
 
-    try:
-        rs = genome_info.available_accessions("GRCh38")
-    except Exception as e:
-        AssertionError(f"Method execution failed: {e!s}")
+    rs = genome_info.available_accessions("GRCh38")
 
     assert rs is not None, "The result is None"
     assert len(rs) > 0, "The result is empty"
 
-    try:
-        rs = genome_info.available_accessions("hg38")
-    except Exception as e:
-        AssertionError(f"Method execution failed: {e!s}")
+    rs = genome_info.available_accessions("hg38")
 
     assert rs is not None, "The result is None"
     assert len(rs) > 0, "The result is empty"