1 files changed, 79 insertions, 0 deletions
diff --git a/eval/src/tests/tensor/dense_inplace_map_function/dense_inplace_map_function_test.cpp b/eval/src/tests/tensor/dense_inplace_map_function/dense_inplace_map_function_test.cpp
new file mode 100644
index 00000000000..77af747a066
--- /dev/null
+++ b/eval/src/tests/tensor/dense_inplace_map_function/dense_inplace_map_function_test.cpp
@@ -0,0 +1,79 @@
+// Copyright 2018 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+
+#include <vespa/vespalib/testkit/test_kit.h>
+#include <vespa/eval/eval/tensor_function.h>
+#include <vespa/eval/eval/simple_tensor.h>
+#include <vespa/eval/eval/simple_tensor_engine.h>
+#include <vespa/eval/tensor/default_tensor_engine.h>
+#include <vespa/eval/tensor/dense/dense_inplace_map_function.h>
+#include <vespa/eval/tensor/dense/dense_tensor.h>
+#include <vespa/eval/eval/test/tensor_model.hpp>
+#include <vespa/eval/eval/test/eval_fixture.h>
+
+#include <vespa/vespalib/util/stringfmt.h>
+#include <vespa/vespalib/util/stash.h>
+
+using namespace vespalib;
+using namespace vespalib::eval;
+using namespace vespalib::eval::test;
+using namespace vespalib::tensor;
+using namespace vespalib::eval::tensor_function;
+
+const TensorEngine &prod_engine = DefaultTensorEngine::ref();
+
+EvalFixture::ParamRepo make_params() {
+    return EvalFixture::ParamRepo()
+        .add("x5", spec({x(5)}, N()))
+        .add_mutable("_d", spec(5.0))
+        .add_mutable("_x5", spec({x(5)}, N()))
+        .add_mutable("_x5y3", spec({x(5),y(3)}, N()))
+        .add_mutable("_x5_u", spec({x(5)}, N()), "tensor(x[])")
+        .add_mutable("_x_m", spec({x({"a", "b", "c"})}, N()));
+}
+EvalFixture::ParamRepo param_repo = make_params();
+
+void verify_optimized(const vespalib::string &expr, size_t cnt) {
+    EvalFixture fixture(prod_engine, expr, param_repo, true, true);
+    EXPECT_EQUAL(fixture.result(), EvalFixture::ref(expr, param_repo));
+    EXPECT_EQUAL(fixture.get_param(0), fixture.result());
+    auto info = fixture.find_all<DenseInplaceMapFunction>();
+    ASSERT_EQUAL(info.size(), cnt);
+    for (size_t i = 0; i < cnt; ++i) {
+        EXPECT_TRUE(info[i]->result_is_mutable());
+    }
+}
+
+void verify_not_optimized(const vespalib::string &expr) {
+    EvalFixture fixture(prod_engine, expr, param_repo, true, true);
+    EXPECT_EQUAL(fixture.result(), EvalFixture::ref(expr, param_repo));
+    EXPECT_NOT_EQUAL(fixture.get_param(0), fixture.result());
+    auto info = fixture.find_all<DenseInplaceMapFunction>();
+    EXPECT_TRUE(info.empty());
+}
+
+TEST("require that mutable dense concrete tensors are optimized") {
+    TEST_DO(verify_optimized("map(_x5,f(x)(x+10))", 1));
+    TEST_DO(verify_optimized("map(_x5y3,f(x)(x+10))", 1));
+}
+
+TEST("require that inplace map operations can be chained") {
+    TEST_DO(verify_optimized("map(map(_x5,f(x)(x+10)),f(x)(x-5))", 2));
+}
+
+TEST("require that abstract tensors are not optimized") {
+    TEST_DO(verify_not_optimized("map(_x5_u,f(x)(x+10))"));
+}
+
+TEST("require that non-mutable tensors are not optimized") {
+    TEST_DO(verify_not_optimized("map(x5,f(x)(x+10))"));
+}
+
+TEST("require that scalar values are not optimized") {
+    TEST_DO(verify_not_optimized("map(_d,f(x)(x+10))"));
+}
+
+TEST("require that mapped tensors are not optimized") {
+    TEST_DO(verify_not_optimized("map(_x_m,f(x)(x+10))"));
+}
+
+TEST_MAIN() { TEST_RUN_ALL(); }