[willow]: initial frontend work, unit tests (#8)dev/stefan

2 files changed, 67 insertions, 0 deletions

diff --git a/willow/unittest/ir/BUILD.bazel b/willow/unittest/ir/BUILD.bazel
new file mode 100644
index 0000000..b41dfcd
--- /dev/null
+++ b/willow/unittest/ir/BUILD.bazel
@@ -0,0 +1,16 @@
+cc_test(
+  name = "verifier",
+  srcs = ["VerifierTest.cpp"],
+  deps = [
+    "//willow",
+    "@catch2//:catch2_main"
+  ],
+  tags = ["ir"]
+)
+
+test_suite(
+  name = "ir_tests",
+  tests = [
+    ":verifier"
+  ],
+)
diff --git a/willow/unittest/ir/VerifierTest.cpp b/willow/unittest/ir/VerifierTest.cpp
new file mode 100644
index 0000000..959d72a
--- /dev/null
+++ b/willow/unittest/ir/VerifierTest.cpp
@@ -0,0 +1,51 @@
+#include <catch2/catch_test_macros.hpp>
+
+#include <willow/IR/Context.h>
+#include <willow/IR/Module.h>
+#include <willow/IR/Verifier.h>
+#include <willow/IR/Diagnostic.h>
+#include <willow/IR/DiagnosticEngine.h>
+#include <willow/IR/Function.h>
+
+using namespace willow;
+
+TEST_CASE("valid modules", "[verifier]") {
+  WillowContext ctx;
+  std::vector<Diagnostic> diags;
+  DiagnosticEngine eng(
+      [&](Diagnostic d) { diags.push_back(std::move(d)); });
+
+  auto &m = *ctx.addModule("test");
+  SECTION("empty module") {
+    REQUIRE(succeeded(verifyModule(ctx, m, eng)));
+    REQUIRE(diags.empty());
+  }
+}
+
+TEST_CASE("valid function", "[verifier]") {
+  WillowContext ctx;
+  std::vector<Diagnostic> diags;
+  DiagnosticEngine eng(
+      [&](Diagnostic d) { diags.push_back(std::move(d)); });
+
+  auto &m = *ctx.addModule("test");
+
+  Type fty = ctx.types().FunctionType(ctx.types().VoidType(), {});
+  auto &fn = *m.emplaceFunction("fn", &m, fty);
+
+  REQUIRE(succeeded(verifyFunction(ctx, fn, eng)));
+  REQUIRE(diags.empty());
+}
+
+TEST_CASE("invalid basic block", "[verifier]") {
+  WillowContext ctx;
+  std::vector<Diagnostic> diags;
+  DiagnosticEngine eng(
+      [&](Diagnostic d) { diags.push_back(std::move(d)); });
+
+  auto &m = *ctx.addModule("test");
+
+  Type fty = ctx.types().FunctionType(ctx.types().VoidType(), {});
+  auto &fn = *m.emplaceFunction("fn", &m, fty);
+  // TODO
+}