extract main volcano loop to volcano module, start adding tests

src/CMakeLists.txt

@@ -192,6 +192,7 @@ set(TESTS_SRC
   battle.test.c
   vortex.test.c
   tests.test.c
+  volcano.test.c
   reports.test.c
   seen.test.c
   travelthru.test.c

src/randenc.c

@@ -842,33 +842,8 @@ void randomevents(void)
             }
         }
     }
-
-    /* Vulkane qualmen, brechen aus ... */
-    for (r = regions; r; r = r->next) {
-        if (r->terrain == newterrain(T_VOLCANO_SMOKING)) {
-            if (a_find(r->attribs, &at_reduceproduction)) {
-                ADDMSG(&r->msgs, msg_message("volcanostopsmoke", "region", r));
-                rsetterrain(r, T_VOLCANO);
-            }
-            else {
-                if (rng_int() % 100 < 12) {
-                    ADDMSG(&r->msgs, msg_message("volcanostopsmoke", "region", r));
-                    rsetterrain(r, T_VOLCANO);
-                }
-                else if (r->age > 20 && rng_int() % 100 < 8) {
-                    volcano_outbreak(r);
-                    rsetterrain(r, T_VOLCANO);
-                }
-            }
-        }
-        else if (r->terrain == newterrain(T_VOLCANO)) {
-            if (rng_int() % 100 < 4) {
-                ADDMSG(&r->msgs, msg_message("volcanostartsmoke", "region", r));
-                rsetterrain(r, T_VOLCANO_SMOKING);
-            }
-        }
-    }
-
+    
+    volcano_update();
     /* Monumente zerfallen, Schiffe verfaulen */
 
     for (r = regions; r; r = r->next) {

src/volcano.c

@@ -30,6 +30,7 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #include <kernel/race.h>
 #include <kernel/region.h>
 #include <kernel/unit.h>
+#include <kernel/terrainid.h>
 
 /* attributes includes */
 #include <attributes/reduceproduction.h>
@@ -257,3 +258,33 @@ void volcano_outbreak(region * r)
     }
 }
 
+void volcano_update(void) 
+{
+    region *r; 
+    /* Vulkane qualmen, brechen aus ... */
+    for (r = regions; r; r = r->next) {
+        if (r->terrain == newterrain(T_VOLCANO_SMOKING)) {
+            if (a_find(r->attribs, &at_reduceproduction)) {
+                ADDMSG(&r->msgs, msg_message("volcanostopsmoke", "region", r));
+                rsetterrain(r, T_VOLCANO);
+            }
+            else {
+                if (rng_int() % 100 < 12) {
+                    ADDMSG(&r->msgs, msg_message("volcanostopsmoke", "region", r));
+                    rsetterrain(r, T_VOLCANO);
+                }
+                else if (r->age > 20 && rng_int() % 100 < 8) {
+                    volcano_outbreak(r);
+                    rsetterrain(r, T_VOLCANO);
+                }
+            }
+        }
+        else if (r->terrain == newterrain(T_VOLCANO)) {
+            if (rng_int() % 100 < 4) {
+                ADDMSG(&r->msgs, msg_message("volcanostartsmoke", "region", r));
+                rsetterrain(r, T_VOLCANO_SMOKING);
+            }
+        }
+    }
+
+}

src/volcano.h

@@ -26,7 +26,8 @@ extern "C" {
     struct region;
 
     void volcano_outbreak(struct region * r);
-
+    void volcano_update(void);
+    
 #ifdef __cplusplus
 }
 #endif

src/volcano.test.c

@@ -0,0 +1,17 @@
+#include <tests.h>
+#include "volcano.h"
+
+#include <CuTest.h>
+
+static void test_volcano_update(CuTest *tc) {
+    test_cleanup();
+    volcano_update();
+    test_cleanup();
+}
+
+CuSuite *get_volcano_suite(void)
+{
+    CuSuite *suite = CuSuiteNew();
+    SUITE_ADD_TEST(suite, test_volcano_update);
+    return suite;
+}