Added more tests

src/arm/Jump_test.go

@@ -0,0 +1,68 @@
+package arm_test
+
+import (
+	"testing"
+
+	"git.urbach.dev/cli/q/src/arm"
+	"git.urbach.dev/go/assert"
+)
+
+func TestJump(t *testing.T) {
+	usagePatterns := []struct {
+		Type   byte
+		Offset int
+		Code   uint32
+	}{
+		{0, 0, 0x14000000},
+		{0, 1, 0x14000001},
+		{0, -1, 0x17FFFFFF},
+
+		{1, 0, 0x54000000},
+		{1, 1, 0x54000020},
+		{1, -1, 0x54FFFFE0},
+
+		{2, 0, 0x54000001},
+		{2, 1, 0x54000021},
+		{2, -1, 0x54FFFFE1},
+
+		{3, 0, 0x5400000C},
+		{3, 1, 0x5400002C},
+		{3, -1, 0x54FFFFEC},
+
+		{4, 0, 0x5400000A},
+		{4, 1, 0x5400002A},
+		{4, -1, 0x54FFFFEA},
+
+		{5, 0, 0x54000009},
+		{5, 1, 0x54000029},
+		{5, -1, 0x54FFFFE9},
+
+		{6, 0, 0x5400000D},
+		{6, 1, 0x5400002D},
+		{6, -1, 0x54FFFFED},
+	}
+
+	for _, pattern := range usagePatterns {
+		t.Logf("b %d", pattern.Offset)
+		var code uint32
+
+		switch pattern.Type {
+		case 0:
+			code = arm.Jump(pattern.Offset)
+		case 1:
+			code = arm.JumpIfEqual(pattern.Offset)
+		case 2:
+			code = arm.JumpIfNotEqual(pattern.Offset)
+		case 3:
+			code = arm.JumpIfGreater(pattern.Offset)
+		case 4:
+			code = arm.JumpIfGreaterOrEqual(pattern.Offset)
+		case 5:
+			code = arm.JumpIfLess(pattern.Offset)
+		case 6:
+			code = arm.JumpIfLessOrEqual(pattern.Offset)
+		}
+
+		assert.DeepEqual(t, code, pattern.Code)
+	}
+}