Add some tests for C api and code.

Makefile

@@ -132,6 +132,16 @@ $(JANET_EMTARGET): $(JANET_EMOBJECTS)
 ##### Testing #####
 ###################
 
+TEST_SOURCES=$(wildcard ctest/*.c)
+TEST_OBJECTS=$(patsubst %.c,%.o,$(TEST_SOURCES))
+TEST_PROGRAMS=$(patsubst %.c,%.out,$(TEST_SOURCES))
+
+ctest/%.o: ctest/%.c $(JANET_HEADERS)
+	$(CC) $(CFLAGS) -o $@ -c $<
+
+ctest/%.out: ctest/%.o $(JANET_CORE_OBJECTS)
+	$(CC) $(CFLAGS) -o $@ $^ $(CLIBS)
+
 repl: $(JANET_TARGET)
 	./$(JANET_TARGET)
 
@@ -141,12 +151,16 @@ debug: $(JANET_TARGET)
 valgrind: $(JANET_TARGET)
 	valgrind --leak-check=full -v ./$(JANET_TARGET)
 
-test: $(JANET_TARGET)
+test: $(JANET_TARGET) $(TEST_PROGRAMS)
+	ctest/array_test.out
+	ctest/buffer_test.out
 	./$(JANET_TARGET) test/suite0.janet
 	./$(JANET_TARGET) test/suite1.janet
 	./$(JANET_TARGET) test/suite2.janet
 
-valtest: $(JANET_TARGET)
+valtest: $(JANET_TARGET) $(TEST_PROGRAMS)
+	valgrind --leak-check=full -v ctest/array_test.out
+	valgrind --leak-check=full -v ctest/buffer_test.out
 	valgrind --leak-check=full -v ./$(JANET_TARGET) test/suite0.janet
 	valgrind --leak-check=full -v ./$(JANET_TARGET) test/suite1.janet
 	valgrind --leak-check=full -v ./$(JANET_TARGET) test/suite2.janet
@@ -170,6 +184,7 @@ clean-natives:
 clean:
 	-rm $(JANET_TARGET)
 	-rm $(JANET_LIBRARY)
+	-rm ctest/*.o ctest/*.out
 	-rm src/**/*.o src/**/*.bc vgcore.* *.js *.wasm *.html
 	-rm $(JANET_GENERATED_HEADERS)
 
@@ -195,4 +210,5 @@ uninstall:
 	-rm -rf $(INCLUDEDIR)
 	$(LDCONFIG)
 
-.PHONY: clean install repl debug valgrind test valtest install uninstall
+.PHONY: clean install repl debug valgrind test valtest install uninstall \
+	$(TEST_PROGRAM_PHONIES) $(TEST_PROGRAM_VALPHONIES)

ctest/array_test.c

@@ -0,0 +1,68 @@
+/*
+* Copyright (c) 2018 Calvin Rose
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to
+* deal in the Software without restriction, including without limitation the
+* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+* sell copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+* IN THE SOFTWARE.
+*/
+
+#include <janet/janet.h>
+#include <assert.h>
+
+int main() {
+    
+    int i;
+    JanetArray *array1, *array2;
+
+    janet_init();
+
+    array1 = janet_array(10);
+    array2 = janet_array(0);
+
+    janet_array_push(array1, janet_cstringv("one"));
+    janet_array_push(array1, janet_cstringv("two"));
+    janet_array_push(array1, janet_cstringv("three"));
+    janet_array_push(array1, janet_cstringv("four"));
+    janet_array_push(array1, janet_cstringv("five"));
+    janet_array_push(array1, janet_cstringv("six"));
+    janet_array_push(array1, janet_cstringv("seven"));
+
+    assert(array1->count == 7);
+    assert(array1->capacity >= 7);
+    assert(janet_equals(array1->data[0], janet_cstringv("one")));
+
+    janet_array_push(array2, janet_cstringv("one"));
+    janet_array_push(array2, janet_cstringv("two"));
+    janet_array_push(array2, janet_cstringv("three"));
+    janet_array_push(array2, janet_cstringv("four"));
+    janet_array_push(array2, janet_cstringv("five"));
+    janet_array_push(array2, janet_cstringv("six"));
+    janet_array_push(array2, janet_cstringv("seven"));
+
+    for (i = 0; i < array2->count; i++) {
+        assert(janet_equals(array1->data[i], array2->data[i]));
+    }
+
+    janet_array_pop(array1);
+    janet_array_pop(array1);
+
+    assert(array1->count == 5);
+
+    janet_deinit();
+
+    return 0;
+}

ctest/buffer_test.c

@@ -0,0 +1,64 @@
+/*
+* Copyright (c) 2018 Calvin Rose
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to
+* deal in the Software without restriction, including without limitation the
+* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+* sell copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+* IN THE SOFTWARE.
+*/
+
+#include <janet/janet.h>
+#include <assert.h>
+
+int main() {
+    
+    int i;
+    JanetBuffer *buffer1, *buffer2;
+
+    janet_init();
+
+    buffer1 = janet_buffer(100);
+    buffer2 = janet_buffer(0);
+
+    janet_buffer_push_cstring(buffer1, "hello, world!\n");
+
+    janet_buffer_push_u8(buffer2, 'h');
+    janet_buffer_push_u8(buffer2, 'e');
+    janet_buffer_push_u8(buffer2, 'l');
+    janet_buffer_push_u8(buffer2, 'l');
+    janet_buffer_push_u8(buffer2, 'o');
+    janet_buffer_push_u8(buffer2, ',');
+    janet_buffer_push_u8(buffer2, ' ');
+    janet_buffer_push_u8(buffer2, 'w');
+    janet_buffer_push_u8(buffer2, 'o');
+    janet_buffer_push_u8(buffer2, 'r');
+    janet_buffer_push_u8(buffer2, 'l');
+    janet_buffer_push_u8(buffer2, 'd');
+    janet_buffer_push_u8(buffer2, '!');
+    janet_buffer_push_u8(buffer2, '\n');
+
+    assert(buffer1->count == buffer2->count);
+    assert(buffer1->capacity >= buffer1->count);
+    assert(buffer2->capacity >= buffer2->count);
+
+    for (i = 0; i < buffer1->count; i++) {
+        assert(buffer1->data[i] == buffer2->data[i]);
+    }
+
+    janet_deinit();
+
+    return 0;
+}