util/intelp2m/fields: Add unit tests

Change-Id: I6330855b1c7463a3093b38c54e6cc06c3409009a
Signed-off-by: Maxim Polyakov <max.senia.poliak@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68673
Reviewed-by: Daniel Maslowski <info@orangecms.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>

util/intelp2m/fields/test/suite.go

@@ -0,0 +1,54 @@
+package test
+
+import (
+	"fmt"
+	"testing"
+
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/common"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/snr"
+)
+
+type TestCase struct {
+	DW0, DW1  uint32
+	Ownership uint8
+	Reference string
+}
+
+func (tc TestCase) Check(actuallyMacro string) error {
+	if actuallyMacro != tc.Reference {
+		return fmt.Errorf(`TestCase: DW0 = %d, DW1 = %d, Ownership = %d:
+Expects:  '%s'
+Actually: '%s'`, tc.DW0, tc.DW1, tc.Ownership, tc.Reference, actuallyMacro)
+	}
+	return nil
+}
+
+type Suite []TestCase
+
+func (suite Suite) Run(t *testing.T, label string, decoderIf common.Fields) {
+	t.Run(label, func(t *testing.T) {
+		platform := snr.PlatformSpecific{}
+		macro := common.GetInstanceMacro(platform, decoderIf)
+		dw0 := macro.Register(common.PAD_CFG_DW0)
+		dw1 := macro.Register(common.PAD_CFG_DW1)
+		for _, tc := range suite {
+			macro.Clear()
+			macro.PadIdSet("").SetPadOwnership(tc.Ownership)
+			dw0.ValueSet(tc.DW0)
+			dw1.ValueSet(tc.DW1)
+			macro.Fields.GenerateString()
+			if err := tc.Check(macro.Get()); err != nil {
+				t.Errorf("Test failed: %v", err)
+			}
+		}
+	})
+}
+
+func SlidingOneTestSuiteCreate(referenceSlice []string) Suite {
+	suite := make([]TestCase, len(referenceSlice))
+	dw := uint32(0x80000000)
+	for i, reference := range referenceSlice {
+		suite[i] = TestCase{DW0: dw >> i, DW1: dw >> i, Reference: reference}
+	}
+	return suite
+}