test: optimize Ranges and RangesUnion test suites

src/core_test/CMakeLists.txt

@@ -10,9 +10,6 @@ set(KLSK_TEST_DEPS klotski_c klotski_core
 
 include_directories(${CMAKE_CURRENT_SOURCE_DIR})
 
-# TODO: remove it
-include_directories(${CMAKE_CURRENT_SOURCE_DIR}/utility)
-
 # ------------------------------------------------------------------------------------ #
 
 set(KLSK_TEST_CASES_SRC

src/core_test/cases/helper/cases.h

@@ -16,7 +16,7 @@ using klotski::cases::RangesUnion;
 
 using klotski::cases::BLOCK_NUM;
 using klotski::cases::ALL_CASES_NUM;
-using klotski::cases::ALL_CASES_NUM;
+using klotski::cases::ALL_CASES_NUM_;
 using klotski::cases::BASIC_RANGES_NUM;
 using klotski::cases::BASIC_RANGES_NUM_;
 

src/core_test/cases/ranges.cc

@@ -25,7 +25,6 @@ TEST(Ranges, spawn) {
         Ranges ranges;
         ranges.spawn(n, n_2x1, n_1x1);
         EXPECT_SORTED_AND_UNIQUE(ranges); // sorted and unique
-
         for (const auto range : ranges) {
             const auto [val_1x1, val_1x2, val_2x1] = cal_block_num(range);
             EXPECT_EQ(val_1x1, n_1x1);
@@ -55,16 +54,23 @@ TEST(Ranges, derive) {
     }
 }
 
+TEST(Ranges, append) {
+    Ranges ranges;
+    for (auto [n, n_2x1, n_1x1] : BLOCK_NUM) {
+        Ranges r;
+        r.spawn(n, n_2x1, n_1x1);
+        auto &tmp = ranges += r;
+        EXPECT_EQ(tmp, ranges); // reference of ranges
+    }
+    std::stable_sort(ranges.begin(), ranges.end());
+    EXPECT_EQ(ranges, BasicRanges::instance().fetch());
+}
+
 TEST(Ranges, reverse) {
     auto ranges = BasicRanges::instance().fetch();
-    Ranges reverse {ranges};
-
-    for (auto &x : reverse) {
-        x = range_reverse(x); // manual reverse
-    }
+    auto reverse = ranges | std::views::transform(range_reverse) | std::ranges::to<std::vector>();
     ranges.reverse();
     EXPECT_EQ(ranges, reverse);
-
     ranges.reverse();
     EXPECT_EQ(ranges, BasicRanges::instance().fetch());
 }
@@ -72,7 +78,6 @@ TEST(Ranges, reverse) {
 TEST(Ranges, combine) {
     Ranges all_ranges;
     RangesUnion all_cases;
-
     all_ranges.reserve(BASIC_RANGES_NUM_); // pre reserve
     for (const auto head : Heads) {
         all_cases[head].reserve(ALL_CASES_NUM[head]); // pre reserve
@@ -92,8 +97,8 @@ TEST(Ranges, combine) {
     for (const auto head : Heads) {
         std::ranges::stable_sort(all_cases[head].begin(), all_cases[head].end());
     }
-    EXPECT_EQ(all_ranges, BasicRanges::instance().fetch()); // verify content
-    EXPECT_EQ(all_cases, AllCases::instance().fetch()); // verify content
+    EXPECT_EQ(all_ranges, BasicRanges::instance().fetch()); // verify all ranges
+    EXPECT_EQ(all_cases, AllCases::instance().fetch()); // verify all cases
 
     all_ranges.reverse(); // reverse ranges for derive
     for (const auto head : Heads) {
@@ -102,12 +107,3 @@ TEST(Ranges, combine) {
     }
     EXPECT_EQ(all_cases, AllCases::instance().fetch()); // verify content
 }
-
-TEST(Ranges, operator) {
-    Ranges r, r1, r2;
-    r.spawn(5, 3, 4);
-    r.spawn(5, 4, 4);
-    r1.spawn(5, 3, 4);
-    r2.spawn(5, 4, 4);
-    EXPECT_EQ(r, r1 += r2);
-}

src/core_test/cases/ranges_union.cc

@@ -1,35 +1,39 @@
 #include <gtest/gtest.h>
 
-#include <format>
-
-#include "hash.h"
 #include "helper/cases.h"
+#include "utility/hash.h"
 #include "ranges/ranges.h"
 
-static_assert(std::is_base_of_v<std::array<Ranges, 16>, RangesUnion>);
-
 constexpr std::string_view ALL_CASES_MD5 = "3888e9fab8d3cbb50908b12b147cfb23";
 
+static_assert(std::is_base_of_v<std::array<Ranges, 16>, RangesUnion>);
+
 TEST(RangesUnion, export) {
     std::string buffer;
+    buffer.reserve(ALL_CASES_NUM_ * 10); // [\dA-F]{9} + '\n'
     for (auto code : AllCases::instance().fetch().codes()) {
         buffer += std::format("{:09X}\n", code.unwrap());
     }
     EXPECT_EQ(hash::md5(buffer), ALL_CASES_MD5);
 }
 
-TEST(RangesUnion, operator) {
-    Ranges r, r1, r2;
-    r.spawn(5, 3, 4);
-    r.spawn(5, 4, 4);
-    r1.spawn(5, 3, 4);
-    r2.spawn(5, 4, 4);
+TEST(RangesUnion, append) {
+    RangesUnion cases;
+    for (auto [n, n_2x1, n_1x1] : BLOCK_NUM) {
+        Ranges r;
+        r.spawn(n, n_2x1, n_1x1);
+        r.reverse();
+
+        RangesUnion ru;
+        for (const auto head : Heads) {
+            r.derive(head, ru[head]);
+        }
+        auto &tmp = cases += ru;
+        EXPECT_EQ(tmp, cases); // reference of cases
+    }
 
-    RangesUnion r_, r1_, r2_;
     for (const auto head : Heads) {
-        r.derive(head, r_[head]);
-        r1.derive(head, r1_[head]);
-        r2.derive(head, r2_[head]);
+        std::stable_sort(cases[head].begin(), cases[head].end());
     }
-    EXPECT_EQ(r_, r1_ += r2_);
+    EXPECT_EQ(cases, AllCases::instance().fetch());
 }