diff --git a/test/unit/platform_triple/BUILD.bazel b/test/unit/platform_triple/BUILD.bazel
new file mode 100644
index 0000000..5f59a41
--- /dev/null
+++ b/test/unit/platform_triple/BUILD.bazel
@@ -0,0 +1,5 @@
+load(":platform_triple_test.bzl", "platform_triple_test_suite")
+
+platform_triple_test_suite(
+    name = "platform_triple_test_suite",
+)
diff --git a/test/unit/platform_triple/platform_triple_test.bzl b/test/unit/platform_triple/platform_triple_test.bzl
new file mode 100644
index 0000000..fc05b96
--- /dev/null
+++ b/test/unit/platform_triple/platform_triple_test.bzl
@@ -0,0 +1,115 @@
+"""Tests for the platform triple constructor"""
+
+load("@bazel_skylib//lib:unittest.bzl", "asserts", "unittest")
+load("//rust/platform:triple.bzl", "triple")
+load("//rust/platform:triple_mappings.bzl", "SUPPORTED_PLATFORM_TRIPLES")
+
+def _construct_platform_triple_test_impl(ctx):
+    env = unittest.begin(ctx)
+
+    imaginary_triple = triple("arch-vendor-system-abi")
+
+    asserts.equals(
+        env,
+        "arch",
+        imaginary_triple.arch,
+    )
+
+    asserts.equals(
+        env,
+        "vendor",
+        imaginary_triple.vendor,
+    )
+
+    asserts.equals(
+        env,
+        "system",
+        imaginary_triple.system,
+    )
+
+    asserts.equals(
+        env,
+        "abi",
+        imaginary_triple.abi,
+    )
+
+    asserts.equals(
+        env,
+        "arch-vendor-system-abi",
+        imaginary_triple.str,
+    )
+
+    return unittest.end(env)
+
+def _construct_minimal_platform_triple_test_impl(ctx):
+    env = unittest.begin(ctx)
+
+    imaginary_triple = triple("arch-vendor-system")
+
+    asserts.equals(
+        env,
+        "arch",
+        imaginary_triple.arch,
+    )
+
+    asserts.equals(
+        env,
+        "vendor",
+        imaginary_triple.vendor,
+    )
+
+    asserts.equals(
+        env,
+        "system",
+        imaginary_triple.system,
+    )
+
+    asserts.equals(
+        env,
+        None,
+        imaginary_triple.abi,
+    )
+
+    asserts.equals(
+        env,
+        "arch-vendor-system",
+        imaginary_triple.str,
+    )
+
+    return unittest.end(env)
+
+def _supported_platform_triples_test_impl(ctx):
+    env = unittest.begin(ctx)
+
+    for supported_triple in SUPPORTED_PLATFORM_TRIPLES:
+        asserts.equals(
+            env,
+            supported_triple,
+            triple(supported_triple).str,
+        )
+
+    return unittest.end(env)
+
+construct_platform_triple_test = unittest.make(_construct_platform_triple_test_impl)
+construct_minimal_platform_triple_test = unittest.make(_construct_minimal_platform_triple_test_impl)
+supported_platform_triples_test = unittest.make(_supported_platform_triples_test_impl)
+
+def platform_triple_test_suite(name):
+    construct_platform_triple_test(
+        name = "construct_platform_triple_test",
+    )
+    construct_minimal_platform_triple_test(
+        name = "construct_minimal_platform_triple_test",
+    )
+    supported_platform_triples_test(
+        name = "supported_platform_triples_test",
+    )
+
+    native.test_suite(
+        name = name,
+        tests = [
+            ":construct_platform_triple_test",
+            ":construct_minimal_platform_triple_test",
+            ":supported_platform_triples_test",
+        ],
+    )