xo-expression2: + DConstant utest

utest/DConstant.test.cpp

@@ -0,0 +1,232 @@
+/** @file DConstant.test.cpp
+ *
+ *  @author Roland Conybeare, Jan 2026
+ **/
+
+#include "init_expression2.hpp"
+#include <xo/expression2/DConstant.hpp>
+#include <xo/expression2/detail/IExpression_DConstant.hpp>
+#include <xo/expression2/detail/IPrintable_DConstant.hpp>
+
+#include <xo/object2/DFloat.hpp>
+#include <xo/object2/DInteger.hpp>
+#include <xo/object2/number/IGCObject_DFloat.hpp>
+#include <xo/object2/number/IGCObject_DInteger.hpp>
+
+#include <xo/gc/CollectorTypeRegistry.hpp>
+#include <xo/gc/DX1Collector.hpp>
+#include <xo/gc/detail/IAllocator_DX1Collector.hpp>
+#include <xo/gc/detail/ICollector_DX1Collector.hpp>
+
+#include <xo/printable2/Printable.hpp>
+#include <xo/facet/FacetRegistry.hpp>
+#include <xo/reflect/Reflect.hpp>
+
+#include <xo/indentlog/scope.hpp>
+
+#include <catch2/catch.hpp>
+
+#include <sstream>
+
+namespace ut {
+    using xo::S_expression2_tag;
+    using xo::scm::DConstant;
+    using xo::scm::DFloat;
+    using xo::scm::DInteger;
+    using xo::scm::AExpression;
+    using xo::mm::CollectorTypeRegistry;
+    using xo::mm::AAllocator;
+    using xo::mm::ACollector;
+    using xo::mm::AGCObject;
+    using xo::mm::DX1Collector;
+    using xo::mm::CollectorConfig;
+    using xo::mm::ArenaConfig;
+    using xo::print::APrintable;
+    using xo::print::ppstate_standalone;
+    using xo::print::ppconfig;
+    using xo::facet::FacetRegistry;
+    using xo::facet::with_facet;
+    using xo::facet::obj;
+    using xo::facet::typeseq;
+    using xo::reflect::Reflect;
+    using xo::InitEvidence;
+    using xo::InitSubsys;
+    using xo::scope;
+
+    // Ensure subsystem initialized before tests
+    static InitEvidence s_init = InitSubsys<S_expression2_tag>::require();
+
+    TEST_CASE("DConstant-init", "[expression2][DConstant]")
+    {
+        // Verify subsystem initialization succeeded
+        REQUIRE(s_init.evidence());
+    }
+
+    TEST_CASE("DConstant-from-float", "[expression2][DConstant]")
+    {
+        REQUIRE(s_init.evidence());
+
+        CollectorConfig cfg{
+            .name_ = "dconstant_float_test",
+            .arena_config_ = ArenaConfig{
+                .size_ = 8192,
+                .store_header_flag_ = true},
+            .object_types_z_ = 16384,
+            .gc_trigger_v_{{4096, 4096}},
+            .debug_flag_ = false,
+        };
+
+        DX1Collector gc(cfg);
+        auto alloc = with_facet<AAllocator>::mkobj(&gc);
+        auto coll = with_facet<ACollector>::mkobj(&gc);
+
+        bool ok = CollectorTypeRegistry::instance().install_types(coll);
+        REQUIRE(ok);
+
+        // Box a float value
+        obj<AGCObject> fval = DFloat::box<AGCObject>(alloc, 3.14);
+        REQUIRE(fval.data() != nullptr);
+
+        // Create DConstant from the boxed float
+        auto expr = DConstant::make(alloc, fval);
+        REQUIRE(expr.data() != nullptr);
+
+        // Verify expression type
+        REQUIRE(expr.data()->extype() == xo::scm::exprtype::constant);
+
+        // Verify valuetype is double (DFloat::value_type)
+        REQUIRE(expr.data()->valuetype() == Reflect::require<double>());
+
+        // Verify value is accessible
+        REQUIRE(expr.data()->value().data() != nullptr);
+    }
+
+    TEST_CASE("DConstant-from-integer", "[expression2][DConstant]")
+    {
+        REQUIRE(s_init.evidence());
+
+        CollectorConfig cfg{
+            .name_ = "dconstant_int_test",
+            .arena_config_ = ArenaConfig{
+                .size_ = 8192,
+                .store_header_flag_ = true},
+            .object_types_z_ = 16384,
+            .gc_trigger_v_{{4096, 4096}},
+            .debug_flag_ = false,
+        };
+
+        DX1Collector gc(cfg);
+        auto alloc = with_facet<AAllocator>::mkobj(&gc);
+        auto coll = with_facet<ACollector>::mkobj(&gc);
+
+        bool ok = CollectorTypeRegistry::instance().install_types(coll);
+        REQUIRE(ok);
+
+        // Box an integer value
+        obj<AGCObject> ival = DInteger::box<AGCObject>(alloc, 42);
+        REQUIRE(ival.data() != nullptr);
+
+        // Create DConstant from the boxed integer
+        auto expr = DConstant::make(alloc, ival);
+        REQUIRE(expr.data() != nullptr);
+
+        // Verify expression type
+        REQUIRE(expr.data()->extype() == xo::scm::exprtype::constant);
+
+        // Verify valuetype is long (DInteger::value_type)
+        REQUIRE(expr.data()->valuetype() == Reflect::require<long>());
+
+        // Verify value is accessible
+        REQUIRE(expr.data()->value().data() != nullptr);
+    }
+
+    TEST_CASE("DConstant-pretty-float", "[expression2][DConstant][pp]")
+    {
+        scope log(XO_DEBUG(true));
+
+        REQUIRE(s_init.evidence());
+
+        CollectorConfig cfg{
+            .name_ = "dconstant_pp_float_test",
+            .arena_config_ = ArenaConfig{
+                .size_ = 8192,
+                .store_header_flag_ = true},
+            .object_types_z_ = 16384,
+            .gc_trigger_v_{{4096, 4096}},
+            .debug_flag_ = false,
+        };
+
+        DX1Collector gc(cfg);
+        auto alloc = with_facet<AAllocator>::mkobj(&gc);
+        auto coll = with_facet<ACollector>::mkobj(&gc);
+
+        bool ok = CollectorTypeRegistry::instance().install_types(coll);
+        REQUIRE(ok);
+
+        // Box a float value
+        obj<AGCObject> fval = DFloat::box<AGCObject>(alloc, 2.718);
+        auto expr = DConstant::make(alloc, fval);
+        REQUIRE(expr.data() != nullptr);
+
+        // Pretty print
+        std::stringstream ss;
+        ppconfig ppc;
+        ppstate_standalone pps(&ss, 0, &ppc);
+
+        obj<APrintable,DConstant> expr_pr(expr.data());
+        pps.pretty(expr_pr);
+
+        std::string output = ss.str();
+
+        log && log(output);
+
+        // Output should contain "DConstant" struct name
+        CHECK(output.find("DConstant") != std::string::npos);
+    }
+
+    TEST_CASE("DConstant-pretty-integer", "[expression2][DConstant][pp]")
+    {
+        scope log(XO_DEBUG(false));
+
+        REQUIRE(s_init.evidence());
+
+        CollectorConfig cfg{
+            .name_ = "dconstant_pp_int_test",
+            .arena_config_ = ArenaConfig{
+                .size_ = 8192,
+                .store_header_flag_ = true},
+            .object_types_z_ = 16384,
+            .gc_trigger_v_{{4096, 4096}},
+            .debug_flag_ = false,
+        };
+
+        DX1Collector gc(cfg);
+        auto alloc = with_facet<AAllocator>::mkobj(&gc);
+        auto coll = with_facet<ACollector>::mkobj(&gc);
+
+        bool ok = CollectorTypeRegistry::instance().install_types(coll);
+        REQUIRE(ok);
+
+        // Box an integer value
+        obj<AGCObject> ival = DInteger::box<AGCObject>(alloc, 123);
+        auto expr = DConstant::make(alloc, ival);
+        REQUIRE(expr.data() != nullptr);
+
+        // Pretty print
+        std::stringstream ss;
+        ppconfig ppc;
+        ppstate_standalone pps(&ss, 0, &ppc);
+
+        obj<APrintable,DConstant> expr_pr(expr.data());
+        pps.pretty(expr_pr);
+
+        std::string output = ss.str();
+
+        log && log(output);
+
+        // Output should contain "DConstant" struct name
+        CHECK(output.find("DConstant") != std::string::npos);
+    }
+}
+
+/* end DConstant.test.cpp */