Added basic assert functions

Nil_test.go

@@ -0,0 +1,25 @@
+
+package assert_test
+
+import (
+	"testing"
+
+	"git.akyoto.dev/go/assert"
+)
+
+func TestNil(t *testing.T) {
+	var nilPointer *T
+	var nilSlice []byte
+
+	assert.Nil(t, nil)
+	assert.Nil(t, nilPointer)
+	assert.Nil(t, nilSlice)
+}
+
+func TestNotNil(t *testing.T) {
+	assert.NotNil(t, 0)
+	assert.NotNil(t, "Hello")
+	assert.NotNil(t, []byte{})
+	assert.NotNil(t, T{})
+	assert.NotNil(t, &T{})
+}