Adds blocks.go + blocks_test.go

overflow/blocks.go

@@ -0,0 +1,23 @@
+package overflow
+
+import (
+	"fmt"
+
+	"github.com/onflow/flow-go-sdk"
+)
+
+func (f *Overflow) GetLatestBlock() (*flow.Block, error) {
+	block, _, _, err := f.Services.Blocks.GetBlock("latest", "", false)
+	return block, err
+}
+
+func (f *Overflow) GetBlockAtHeight(height uint64) (*flow.Block, error) {
+	block, _, _, err := f.Services.Blocks.GetBlock(fmt.Sprintf("%d", height), "", false)
+	return block, err
+}
+
+// blockId should be a hexadecimal string
+func (f *Overflow) GetBlockById(blockId string) (*flow.Block, error) {
+	block, _, _, err := f.Services.Blocks.GetBlock(blockId, "", false)
+	return block, err
+}

overflow/blocks_test.go

@@ -0,0 +1,36 @@
+package overflow
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGetBlock(t *testing.T) {
+
+	t.Run("Should get latest block", func(t *testing.T) {
+		g, _ := NewTestingEmulator().StartE()
+		block, err := g.GetLatestBlock()
+
+		assert.Nil(t, err)
+		assert.Equal(t, uint64(0), block.Height)
+	})
+
+	t.Run("Should get block by height", func(t *testing.T) {
+		g, _ := NewTestingEmulator().StartE()
+		block, err := g.GetBlockAtHeight(0)
+
+		assert.Nil(t, err)
+		assert.Equal(t, uint64(0), block.Height)
+	})
+
+	t.Run("Should get block by ID", func(t *testing.T) {
+		BlockZeroID := "7bc42fe85d32ca513769a74f97f7e1a7bad6c9407f0d934c2aa645ef9cf613c7"
+		g, _ := NewTestingEmulator().StartE()
+		block, err := g.GetBlockById(BlockZeroID)
+
+		assert.Nil(t, err)
+		assert.Equal(t, BlockZeroID, block.ID.String())
+	})
+
+}