tests: add coverage for compose_result.go

internal/common/compose_result_test.go

@@ -0,0 +1,80 @@
+package common
+
+import (
+	"bytes"
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func TestWriteFull(t *testing.T) {
+
+	const testOptions = `{"msg": "test"}`
+
+	testStage := stage{
+		Name:    "testStage",
+		Options: []byte(testOptions),
+		Success: true,
+		Output:  "Finished",
+	}
+
+	testBuild := build{
+		Stages:  []stage{testStage},
+		TreeID:  "treeID",
+		Success: true,
+	}
+
+	testAssembler := assembler{
+		Name:    "testAssembler",
+		Options: []byte(testOptions),
+		Success: true,
+		Output:  "Done",
+	}
+
+	testComposeResult := ComposeResult{
+		TreeID:    "TreeID",
+		OutputID:  "OutputID",
+		Build:     &testBuild,
+		Stages:    []stage{testStage},
+		Assembler: &testAssembler,
+		Success:   true,
+	}
+
+	var b bytes.Buffer
+	assert.NoError(t, testComposeResult.Write(&b))
+	expectedMessage :=
+		`Build pipeline:
+Stage testStage
+{
+  "msg": "test"
+}
+
+Output:
+Finished
+Stages:
+Stage: testStage
+{
+  "msg": "test"
+}
+
+Output:
+Finished
+Assembler testAssembler:
+{
+  "msg": "test"
+}
+
+Output:
+Done
+`
+	assert.Equal(t, expectedMessage, b.String())
+}
+
+func TestWriteEmpty(t *testing.T) {
+
+	testComposeResult := ComposeResult{}
+
+	var b bytes.Buffer
+	assert.NoError(t, testComposeResult.Write(&b))
+	assert.Equal(t, "The compose result is empty.\n", b.String())
+
+}