Add a unit test for LdPointArray.

CMakeLists.txt

@@ -142,6 +142,9 @@ set (liblogdiag_HEADERS
 	liblogdiag/ld-lua-symbol.h
 	liblogdiag/ld-lua-symbol-private.h)
 
+set (logdiag_TESTS
+	point-array)
+
 set (logdiag_SOURCES
 	src/ld-window-main.c
 	src/logdiag.c)
@@ -220,6 +223,20 @@ set_target_properties (liblogdiag PROPERTIES OUTPUT_NAME logdiag)
 add_executable (logdiag WIN32 ${logdiag_SOURCES} ${logdiag_HEADERS})
 target_link_libraries (logdiag liblogdiag ${logdiag_LIBS})
 
+# Testing
+option (BUILD_TESTING "Build tests" OFF)
+
+if (BUILD_TESTING)
+	enable_testing ()
+
+	foreach (name ${logdiag_TESTS})
+		add_executable (test-${name} tests/${name}.c)
+		target_link_libraries (test-${name} liblogdiag ${logdiag_LIBS})
+
+		add_test (test-${name} test-${name})
+	endforeach (name)
+endif (BUILD_TESTING)
+
 # Generate documentation
 if (GTK_DOC_FOUND)
 	GTK_DOC_RUN (WORKING_DIR ${project_DOC_DIR}

tests/point-array.c

@@ -0,0 +1,137 @@
+/*
+ * point-array.c
+ *
+ * This file is a part of logdiag.
+ * Copyright Přemysl Janouch 2011. All rights reserved.
+ *
+ * See the file LICENSE for licensing information.
+ *
+ */
+
+#include <liblogdiag/liblogdiag.h>
+
+#define POINT_ARRAY_LENGTH 5
+
+typedef struct
+{
+	LdPointArray *points;
+}
+PointArray;
+
+static void
+point_array_setup (PointArray *fixture, gconstpointer test_data)
+{
+	guint i;
+
+	fixture->points = ld_point_array_sized_new (POINT_ARRAY_LENGTH);
+	fixture->points->length = POINT_ARRAY_LENGTH;
+	for (i = 0; i < POINT_ARRAY_LENGTH; i++)
+	{
+		fixture->points->points[i].x = i;
+		fixture->points->points[i].y = i;
+	}
+}
+
+static void
+point_array_teardown (PointArray *fixture, gconstpointer test_data)
+{
+	ld_point_array_free (fixture->points);
+}
+
+static void
+point_array_test_new (void)
+{
+	LdPointArray *points;
+
+	points = ld_point_array_new ();
+	g_assert_cmpuint (points->length, ==, 0);
+	ld_point_array_free (points);
+}
+
+static void
+point_array_test_sized_new (void)
+{
+	LdPointArray *points;
+
+	points = ld_point_array_sized_new (5);
+	g_assert_cmpuint (points->length, ==, 0);
+	g_assert_cmpuint (points->size, ==, 5);
+	g_assert (points->points != NULL);
+	ld_point_array_free (points);
+}
+
+static void
+point_array_test_insert (PointArray *fixture, gconstpointer user_data)
+{
+	LdPoint points[] = {{3, -1}, {4, -1}, {5, -9}};
+	const guint offset = 1;
+	guint i, j;
+
+	ld_point_array_insert (fixture->points,
+		points, offset, G_N_ELEMENTS (points));
+	g_assert_cmpuint (fixture->points->length,
+		==, POINT_ARRAY_LENGTH + G_N_ELEMENTS (points));
+
+	for (i = 0, j = 0; i < POINT_ARRAY_LENGTH + G_N_ELEMENTS (points); i++)
+	{
+		/* Check that our values have been really inserted. */
+		if (i >= offset && i < offset + G_N_ELEMENTS (points))
+		{
+			g_assert_cmpfloat (fixture->points->points[i].x,
+				==, points[i - offset].x);
+			g_assert_cmpfloat (fixture->points->points[i].y,
+				==, points[i - offset].y);
+			continue;
+		}
+
+		/* And everything else is intact. */
+		g_assert_cmpfloat (fixture->points->points[i].x, ==, j);
+		g_assert_cmpfloat (fixture->points->points[i].y, ==, j);
+		j++;
+	}
+}
+
+static void
+point_array_test_remove (PointArray *fixture, gconstpointer user_data)
+{
+	const guint offset = 1;
+	const guint length = 3;
+	guint i, j;
+
+	ld_point_array_remove (fixture->points, offset, length);
+	g_assert_cmpuint (fixture->points->length,
+		==, POINT_ARRAY_LENGTH - length);
+
+	for (i = 0, j = 0; i < POINT_ARRAY_LENGTH; i++)
+	{
+		/* Leave out the hole. */
+		if (i >= offset && i < offset + length)
+			continue;
+
+		/* And test that everything else is intact. */
+		g_assert_cmpfloat (fixture->points->points[j].x, ==, i);
+		g_assert_cmpfloat (fixture->points->points[j].y, ==, i);
+		j++;
+	}
+}
+
+int
+main (int argc, char *argv[])
+{
+	gtk_test_init (&argc, &argv, NULL);
+
+	/* Creation. */
+	g_test_add_func ("/point-array/new", point_array_test_new);
+	g_test_add_func ("/point-array/sized-new", point_array_test_sized_new);
+
+	/* Modification. */
+	g_test_add ("/point-array/insert", PointArray, NULL,
+		point_array_setup, point_array_test_insert,
+		point_array_teardown);
+	g_test_add ("/point-array/remove", PointArray, NULL,
+		point_array_setup, point_array_test_remove,
+		point_array_teardown);
+
+	return g_test_run ();
+}
+