Changes the tests to not run the demo program

assertions_test.go

@@ -0,0 +1,63 @@
+package clapper
+
+import (
+	"fmt"
+	"reflect"
+	"runtime"
+	"testing"
+)
+
+func fail(t *testing.T) {
+	_, f, l, _ := runtime.Caller(2)
+	fmt.Printf("%s # %d\n", f, l)
+	t.FailNow()
+}
+
+func toErrorS(msg ...interface{}) (s string) {
+	args := msg[0].([]interface{})
+	if len(args) > 0 {
+		if fs, ok := args[0].(string); ok {
+			if len(args) > 1 {
+				s = fmt.Sprintf(": %s", fmt.Sprintf(fs, args[1:]...))
+			} else {
+				s = fs
+			}
+		}
+	}
+	return s
+}
+
+func assertError(t *testing.T, v error, msg ...interface{}) {
+	if v == nil {
+		t.Errorf("expected error%s", toErrorS(msg))
+		fail(t)
+	}
+}
+
+func assertNoError(t *testing.T, v error, msg ...interface{}) {
+	if v != nil {
+		t.Errorf("expected no error%s", toErrorS(msg))
+		fail(t)
+	}
+}
+
+func assertEqual(t *testing.T, a interface{}, b interface{}, msg ...interface{}) {
+	if a != b {
+		t.Errorf("expected %v, got %v%s", a, b, toErrorS(msg))
+		fail(t)
+	}
+}
+
+func assertNil(t *testing.T, a interface{}, msg ...interface{}) {
+	if a != nil {
+		t.Errorf("expected nil, got %v%s", a, toErrorS(msg))
+		fail(t)
+	}
+}
+
+func assertNotNil(t *testing.T, a interface{}, msg ...interface{}) {
+	if a == nil || (reflect.ValueOf(a).Kind() == reflect.Ptr && reflect.ValueOf(a).IsNil()) {
+		t.Errorf("expected not nil, got %v%s", a, toErrorS(msg))
+		fail(t)
+	}
+}