Add capability to get current compiler version (#2016)

3 files changed, 49 insertions, 2 deletions

diff --git a/tests/typ/compiler/bytes.typ b/tests/typ/compiler/bytes.typ
index fa724858..9a26e826 100644
--- a/tests/typ/compiler/bytes.typ
+++ b/tests/typ/compiler/bytes.typ
@@ -28,5 +28,5 @@
 #bytes((a: 1))
 
 ---
-// Error: 8-15 expected bytes or array, found string
+// Error: 8-15 expected bytes, array, or version, found string
 #array("hello")
diff --git a/tests/typ/compute/construct.typ b/tests/typ/compute/construct.typ
index d3cea0b4..6980c922 100644
--- a/tests/typ/compute/construct.typ
+++ b/tests/typ/compute/construct.typ
@@ -168,7 +168,7 @@
 #test(str(10 / 3).len() > 10, true)
 
 ---
-// Error: 6-8 expected integer, float, bytes, label, type, or string, found content
+// Error: 6-8 expected integer, float, version, bytes, label, type, or string, found content
 #str([])
 
 ---
diff --git a/tests/typ/compute/version.typ b/tests/typ/compute/version.typ
new file mode 100644
index 00000000..e33eeb6f
--- /dev/null
+++ b/tests/typ/compute/version.typ
@@ -0,0 +1,47 @@
+// Test versions.
+// Ref: false
+
+---
+// Test version constructor.
+
+// Empty.
+#version()
+
+// Plain.
+#version(1, 2)
+
+// Single Array argument.
+#version((1, 2))
+
+// Mixed arguments.
+#version(1, (2, 3), 4, (5, 6), 7)
+
+---
+// Test equality of different-length versions
+#test(version(), version(0))
+#test(version(0), version(0, 0))
+#test(version(1, 2), version(1, 2, 0, 0, 0, 0))
+---
+// Test `version.at`.
+
+// Non-negative index in bounds
+#test(version(1, 2).at(1), 2)
+
+// Non-negative index out of bounds
+#test(version(1, 2).at(4), 0)
+
+// Negative index in bounds
+#test(version(1, 2).at(-2), 1)
+
+// Error: 2-22 component index out of bounds (index: -3, len: 2)
+#version(1, 2).at(-3)
+
+---
+// Test version fields.
+#test(version(1, 2, 3).major, 1)
+#test(version(1, 2, 3).minor, 2)
+#test(version(1, 2, 3).patch, 3)
+
+---
+// Test the type of `sys.version`
+#test(type(sys.version), version)