diff --git a/tests/by-util/test_cksum.rs b/tests/by-util/test_cksum.rs
index e1ffbb68f..666ce4cc6 100644
--- a/tests/by-util/test_cksum.rs
+++ b/tests/by-util/test_cksum.rs
@@ -27,6 +27,7 @@ const SHA_LENGTHS: [u32; 4] = [224, 256, 384, 512];
 #[case::sha384("sha384")]
 #[case::sha512("sha512")]
 #[case::blake2b("blake2b")]
+#[case::blake3("blake3")]
 #[case::sm3("sm3")]
 fn test_all_algos(#[case] algo: &str) {}
 
diff --git a/tests/fixtures/cksum/base64/blake3_single_file.expected b/tests/fixtures/cksum/base64/blake3_single_file.expected
new file mode 100644
index 000000000..cce3661ff
--- /dev/null
+++ b/tests/fixtures/cksum/base64/blake3_single_file.expected
@@ -0,0 +1 @@
+BLAKE3-256 (lorem_ipsum.txt) = /c9QNtxcUOUQabtbQFNF7VC4iiTaZsb4shtGR3z2mdk=
diff --git a/tests/fixtures/cksum/blake3_multiple_files.expected b/tests/fixtures/cksum/blake3_multiple_files.expected
new file mode 100644
index 000000000..f9541ed6b
--- /dev/null
+++ b/tests/fixtures/cksum/blake3_multiple_files.expected
@@ -0,0 +1,2 @@
+BLAKE3-256 (lorem_ipsum.txt) = fdcf5036dc5c50e51069bb5b405345ed50b88a24da66c6f8b21b46477cf699d9
+BLAKE3-256 (alice_in_wonderland.txt) = 93c026644dc6b34a13a2b6705485d06f32d712c76ebe5353e935155edeeb49d5
diff --git a/tests/fixtures/cksum/blake3_single_file.expected b/tests/fixtures/cksum/blake3_single_file.expected
new file mode 100644
index 000000000..cfc017b94
--- /dev/null
+++ b/tests/fixtures/cksum/blake3_single_file.expected
@@ -0,0 +1 @@
+BLAKE3-256 (lorem_ipsum.txt) = fdcf5036dc5c50e51069bb5b405345ed50b88a24da66c6f8b21b46477cf699d9
diff --git a/tests/fixtures/cksum/blake3_stdin.expected b/tests/fixtures/cksum/blake3_stdin.expected
new file mode 100644
index 000000000..fbb69fbc1
--- /dev/null
+++ b/tests/fixtures/cksum/blake3_stdin.expected
@@ -0,0 +1 @@
+BLAKE3-256 (-) = fdcf5036dc5c50e51069bb5b405345ed50b88a24da66c6f8b21b46477cf699d9
diff --git a/tests/fixtures/cksum/raw/blake3_single_file.expected b/tests/fixtures/cksum/raw/blake3_single_file.expected
new file mode 100644
index 000000000..c9e56f005
--- /dev/null
+++ b/tests/fixtures/cksum/raw/blake3_single_file.expected
@@ -0,0 +1 @@
+ýÏP6Ü\Påi»[@SEíP¸Š$ÚfÆø²FG|ö™Ù
\ No newline at end of file
diff --git a/tests/fixtures/cksum/untagged/blake3_multiple_files.expected b/tests/fixtures/cksum/untagged/blake3_multiple_files.expected
new file mode 100644
index 000000000..29379596a
--- /dev/null
+++ b/tests/fixtures/cksum/untagged/blake3_multiple_files.expected
@@ -0,0 +1,2 @@
+fdcf5036dc5c50e51069bb5b405345ed50b88a24da66c6f8b21b46477cf699d9  lorem_ipsum.txt
+93c026644dc6b34a13a2b6705485d06f32d712c76ebe5353e935155edeeb49d5  alice_in_wonderland.txt
diff --git a/tests/fixtures/cksum/untagged/blake3_single_file.expected b/tests/fixtures/cksum/untagged/blake3_single_file.expected
new file mode 100644
index 000000000..1fafca356
--- /dev/null
+++ b/tests/fixtures/cksum/untagged/blake3_single_file.expected
@@ -0,0 +1 @@
+fdcf5036dc5c50e51069bb5b405345ed50b88a24da66c6f8b21b46477cf699d9  lorem_ipsum.txt
diff --git a/tests/fixtures/cksum/untagged/blake3_stdin.expected b/tests/fixtures/cksum/untagged/blake3_stdin.expected
new file mode 100644
index 000000000..4da4171ee
--- /dev/null
+++ b/tests/fixtures/cksum/untagged/blake3_stdin.expected
@@ -0,0 +1 @@
+fdcf5036dc5c50e51069bb5b405345ed50b88a24da66c6f8b21b46477cf699d9  -