fix(helm): refactor lint unit tests to table-driven

Signed-off-by: Arash Deshmeh <adeshmeh@ca.ibm.com>

cmd/helm/lint_test.go

@@ -20,40 +20,53 @@ import (
 	"testing"
 )
 
-var (
-	values                       = []byte{}
-	namespace                    = "testNamespace"
-	strict                       = false
-	archivedChartPath            = "testdata/testcharts/compressedchart-0.1.0.tgz"
-	archivedChartPathWithHyphens = "testdata/testcharts/compressedchart-with-hyphens-0.1.0.tgz"
-	invalidArchivedChartPath     = "testdata/testcharts/invalidcompressedchart0.1.0.tgz"
-	chartDirPath                 = "testdata/testcharts/decompressedchart/"
-	chartMissingManifest         = "testdata/testcharts/chart-missing-manifest"
-	chartWithPreReleaseVersion   = "testdata/testcharts/pre-release-chart-0.1.0-alpha.tgz"
-)
-
 func TestLintChart(t *testing.T) {
-	if _, err := lintChart(chartDirPath, values, namespace, strict); err != nil {
+	tests := []struct {
-		t.Errorf("%s", err)
+		name      string
+		chartPath string
+		err       bool
+	}{
+		{
+			name:      "decompressed-chart",
+			chartPath: "testdata/testcharts/decompressedchart/",
+		},
+		{
+			name:      "archived-chart-path",
+			chartPath: "testdata/testcharts/compressedchart-0.1.0.tgz",
+		},
+		{
+			name:      "archived-chart-path-with-hyphens",
+			chartPath: "testdata/testcharts/compressedchart-with-hyphens-0.1.0.tgz",
+		},
+		{
+			name:      "pre-release-chart",
+			chartPath: "testdata/testcharts/pre-release-chart-0.1.0-alpha.tgz",
+		},
+		{
+			name:      "invalid-archived-chart-path",
+			chartPath: "testdata/testcharts/invalidcompressedchart0.1.0.tgz",
+			err:       true,
+		},
+		{
+			name:      "chart-missing-manifest",
+			chartPath: "testdata/testcharts/chart-missing-manifest",
+			err:       true,
+		},
 	}
 
-	if _, err := lintChart(archivedChartPath, values, namespace, strict); err != nil {
+	values := []byte{}
-		t.Errorf("%s", err)
+	namespace := "testNamespace"
-	}
+	strict := false
-
-	if _, err := lintChart(archivedChartPathWithHyphens, values, namespace, strict); err != nil {
-		t.Errorf("%s", err)
-	}
-
-	if _, err := lintChart(chartWithPreReleaseVersion, values, namespace, strict); err != nil {
-		t.Errorf("%s", err)
-	}
-
-	if _, err := lintChart(invalidArchivedChartPath, values, namespace, strict); err == nil {
-		t.Errorf("Expected a chart parsing error")
-	}
 
-	if _, err := lintChart(chartMissingManifest, values, namespace, strict); err == nil {
+	for _, tt := range tests {
-		t.Errorf("Expected a chart parsing error")
+		t.Run(tt.name, func(t *testing.T) {
+			_, err := lintChart(tt.chartPath, values, namespace, strict)
+			switch {
+			case err != nil && !tt.err:
+				t.Errorf("%s", err)
+			case err == nil && tt.err:
+				t.Errorf("Expected a chart parsing error")
+			}
+		})
 	}
 }