basic autogrow tests #2440

src/tests/autogrow.cpp

@@ -15,6 +15,37 @@ TEST_CASE("Autogrow") {
     CHECK(!ncplane_set_autogrow(n_, false)); // attempt to enable failed?
   }
 
+  // by default, a new plane ought not have autogrow enabled--but we ought be
+  // able to enable(+disable) it, unlike the standard plane.
+  SUBCASE("AutogrowDisabledNewPlane") {
+    struct ncplane_options nopts{};
+    nopts.rows = 10;
+    nopts.cols = 10;
+    auto np = ncplane_create(n_, &nopts);
+    REQUIRE(np);
+    CHECK(!ncplane_set_autogrow(np, true));  // ought be false by default
+    CHECK(ncplane_set_autogrow(np, false));  // did we set it true?
+    CHECK(!ncplane_set_autogrow(np, false)); // did we set it false?
+    CHECK(0 == notcurses_render(nc_));
+    CHECK(0 == ncplane_destroy(np));
+  }
+
+  // with the NCPLANE_OPTION_AUTOGROW flag, the plane ought have autogrow
+  // enabled upon creation. we ought be able to disable it.
+  SUBCASE("AutogrowDisabledNewPlane") {
+    struct ncplane_options nopts{};
+    nopts.rows = 10;
+    nopts.cols = 10;
+    nopts.flags = NCPLANE_OPTION_AUTOGROW;
+    auto np = ncplane_create(n_, &nopts);
+    REQUIRE(np);
+    CHECK(ncplane_set_autogrow(np, false));  // ought be true at creation
+    CHECK(!ncplane_set_autogrow(np, true));  // did we set it false?
+    CHECK(ncplane_set_autogrow(np, false));  // did we set it true?
+    CHECK(0 == notcurses_render(nc_));
+    CHECK(0 == ncplane_destroy(np));
+  }
+
   CHECK(0 == notcurses_stop(nc_));
 
 }