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-rw-r--r--tvix/eval/src/tests/tvix_tests/eval-okay-builtins-compareVersions.nix46
1 files changed, 46 insertions, 0 deletions
diff --git a/tvix/eval/src/tests/tvix_tests/eval-okay-builtins-compareVersions.nix b/tvix/eval/src/tests/tvix_tests/eval-okay-builtins-compareVersions.nix
new file mode 100644
index 000000000000..40a90b507049
--- /dev/null
+++ b/tvix/eval/src/tests/tvix_tests/eval-okay-builtins-compareVersions.nix
@@ -0,0 +1,46 @@
+let
+  cmp = a: b:
+    let
+      ord1 = builtins.compareVersions a b;
+      ord2 = builtins.compareVersions b a;
+    in
+    assert ord1 == -ord2; ord1;
+in
+
+[
+  (cmp "1.2.3" "1.2.3")
+  (cmp "1.2.2" "1.2.3")
+  (cmp "1.2.3" "1.2.40")
+  (cmp "1.2.3" ".1.2.3")
+  (cmp "1.2.3" "1..2.3")
+  (cmp "1.2.3" "1.2.3.")
+  (cmp "1.2.3" "1.2")
+  (cmp "1.2.3" "1.2.a")
+  (cmp "1a.b" "1a.2")
+  (cmp "1" "")
+  (cmp "1.0" "1.0.0")
+  (cmp "2.3" "2.3pre")
+  (cmp "2.3" "2.3.0pre")
+  (cmp "2.3pre" "2.3.0pre")
+  (cmp "2.3" "2.3prepre")
+  (cmp "2.3pre" "2.3prepre")
+  (cmp "2.3prepre" "2.3prepre")
+  # check that the plain word comparison (via Ord) behaves the same
+  (cmp "foo" "bar")
+  (cmp "FoO" "fOo")
+  (cmp "foo" "fooo")
+  (cmp "foopre" "foo")
+  # Subset of test cases from eval-okay-versions.nix shipped by C++ Nix
+  (cmp "1.0" "2.3")
+  (cmp "2.1" "2.3")
+  (cmp "2.3" "2.3")
+  (cmp "2.5" "2.3")
+  (cmp "3.1" "2.3")
+  (cmp "2.3.1" "2.3")
+  (cmp "2.3.1" "2.3a")
+  (cmp "2.3pre1" "2.3")
+  (cmp "2.3pre3" "2.3pre12")
+  (cmp "2.3a" "2.3c")
+  (cmp "2.3pre1" "2.3c")
+  (cmp "2.3pre1" "2.3q")
+]