Replace expressions engine (#133)

internal/model/strategy_utils_test.go

@@ -0,0 +1,68 @@
+package model
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	"gopkg.in/yaml.v3"
+)
+
+type EmptyTraceWriter struct {
+}
+
+func (e *EmptyTraceWriter) Info(_ string, _ ...interface{}) {
+}
+
+func TestStrategy(t *testing.T) {
+	table := []struct {
+		content       string
+		flatmatrix    int
+		includematrix int
+	}{
+		{`
+matrix:
+  label:
+  - a
+  - b
+  fields:
+  - a
+  - b
+`, 4, 0},
+		{`
+matrix:
+  label:
+  - a
+  - b
+  include:
+  - label: a
+    x: self`, 2, 0,
+		},
+		{`
+matrix:
+  label:
+  - a
+  - b
+  include:
+  - label: c
+    x: self`, 2, 1,
+		},
+		{`
+matrix:
+  label:
+  - a
+  - b
+  exclude:
+  - label: a`, 1, 0,
+		},
+	}
+
+	for _, tc := range table {
+		var strategy Strategy
+		err := yaml.Unmarshal([]byte(tc.content), &strategy)
+		require.NoError(t, err)
+		res, err := ExpandStrategy(&strategy, &EmptyTraceWriter{})
+		require.NoError(t, err)
+		require.Len(t, res.FlatMatrix, tc.flatmatrix)
+		require.Len(t, res.IncludeMatrix, tc.includematrix)
+	}
+}