1 files changed, 74 insertions, 0 deletions
diff --git a/eval/src/tests/instruction/dense_simple_map_function/dense_simple_map_function_test.cpp b/eval/src/tests/instruction/dense_simple_map_function/dense_simple_map_function_test.cpp
new file mode 100644
index 00000000000..13a24c13a2e
--- /dev/null
+++ b/eval/src/tests/instruction/dense_simple_map_function/dense_simple_map_function_test.cpp
@@ -0,0 +1,74 @@
+// Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+
+#include <vespa/eval/eval/tensor_function.h>
+#include <vespa/eval/instruction/dense_simple_map_function.h>
+#include <vespa/eval/eval/test/eval_fixture.h>
+#include <vespa/eval/eval/test/tensor_model.hpp>
+#include <vespa/vespalib/gtest/gtest.h>
+
+using namespace vespalib;
+using namespace vespalib::eval;
+using namespace vespalib::eval::test;
+using namespace vespalib::eval::tensor_function;
+
+const ValueBuilderFactory &prod_factory = FastValueBuilderFactory::get();
+
+EvalFixture::ParamRepo make_params() {
+    return EvalFixture::ParamRepo()
+        .add("a", spec(1.5))
+        .add("b", spec(2.5))
+        .add("sparse", spec({x({"a"})}, N()))
+        .add("mixed", spec({x({"a"}),y(5)}, N()))
+        .add_matrix("x", 5, "y", 3);
+}
+EvalFixture::ParamRepo param_repo = make_params();
+
+void verify_optimized(const vespalib::string &expr, bool inplace) {
+    EvalFixture slow_fixture(prod_factory, expr, param_repo, false);
+    EvalFixture fixture(prod_factory, expr, param_repo, true, true);
+    EXPECT_EQ(fixture.result(), EvalFixture::ref(expr, param_repo));
+    EXPECT_EQ(fixture.result(), slow_fixture.result());
+    auto info = fixture.find_all<DenseSimpleMapFunction>();
+    ASSERT_EQ(info.size(), 1u);
+    EXPECT_TRUE(info[0]->result_is_mutable());
+    EXPECT_EQ(info[0]->inplace(), inplace);
+    ASSERT_EQ(fixture.num_params(), 1);
+    if (inplace) {
+        EXPECT_EQ(fixture.get_param(0), fixture.result());
+    } else {
+        EXPECT_TRUE(!(fixture.get_param(0) == fixture.result()));
+    }
+}
+
+void verify_not_optimized(const vespalib::string &expr) {
+    EvalFixture slow_fixture(prod_factory, expr, param_repo, false);
+    EvalFixture fixture(prod_factory, expr, param_repo, true);
+    EXPECT_EQ(fixture.result(), EvalFixture::ref(expr, param_repo));
+    EXPECT_EQ(fixture.result(), slow_fixture.result());
+    auto info = fixture.find_all<DenseSimpleMapFunction>();
+    EXPECT_TRUE(info.empty());
+}
+
+TEST(MapTest, dense_map_is_optimized) {
+    verify_optimized("map(x5y3,f(x)(x+10))", false);
+    verify_optimized("map(x5y3f,f(x)(x+10))", false);
+}
+
+TEST(MapTest, simple_dense_map_can_be_inplace) {
+    verify_optimized("map(@x5y3,f(x)(x+10))", true);
+    verify_optimized("map(@x5y3f,f(x)(x+10))", true);
+}
+
+TEST(MapTest, scalar_map_is_not_optimized) {
+    verify_not_optimized("map(a,f(x)(x+10))");
+}
+
+TEST(MapTest, sparse_map_is_not_optimized) {
+    verify_not_optimized("map(sparse,f(x)(x+10))");
+}
+
+TEST(MapTest, mixed_map_is_not_optimized) {
+    verify_not_optimized("map(mixed,f(x)(x+10))");
+}
+
+GTEST_MAIN_RUN_ALL_TESTS()