Added tests for alias(es) for chart dependencies

pkg/chartutil/requirements_test.go

@@ -320,3 +320,59 @@ func verifyRequirementsImportValues(t *testing.T, c *chart.Chart, v *chart.Confi
 
 	}
 }
+
+func TestCopyChartAsAlias(t *testing.T) {
+	c, err := Load("testdata/frobnitz")
+	if err != nil {
+		t.Fatalf("Failed to load testdata: %s", err)
+	}
+
+	if aliasChart := copyChartAsAlias(c.Dependencies, "mariners", "another-mariner"); aliasChart != nil {
+		t.Fatalf("expected no chart but got %s", aliasChart.Metadata.Name)
+	}
+
+	aliasChart := copyChartAsAlias(c.Dependencies, "mariner", "another-mariner")
+	if aliasChart == nil {
+		t.Fatal("Failed to find dependent chart")
+	}
+	if aliasChart.Metadata.Name != "another-mariner" {
+		t.Fatal(`Failed to update chart-name for alias "dependent chart`)
+	}
+}
+
+func TestDependentChartAliases(t *testing.T) {
+	c, err := Load("testdata/dependent-chart-alias")
+	if err != nil {
+		t.Fatalf("Failed to load testdata: %s", err)
+	}
+
+	if len(c.Dependencies) == 0 {
+		t.Fatal("There are no dependencies to run this test")
+	}
+
+	origLength := len(c.Dependencies)
+	if err := ProcessRequirementsEnabled(c, c.Values); err != nil {
+		t.Fatalf("Expected no errors but got %q", err)
+	}
+
+	if len(c.Dependencies) == origLength {
+		t.Fatal("Expected alias dependencies to be added, but did not got that")
+	}
+
+	reqmts, err := LoadRequirements(c)
+	if err != nil {
+		t.Fatalf("Cannot load requirements for test chart, %v", err)
+	}
+
+	var expectedDependencyCharts int
+	for _, reqmt := range reqmts.Dependencies {
+		expectedDependencyCharts++
+		if len(reqmt.Alias) >= 0 {
+			expectedDependencyCharts += len(reqmt.Alias)
+		}
+	}
+	if len(c.Dependencies) != expectedDependencyCharts {
+		t.Fatalf("Expected number of chart dependencies %d, but got %d", expectedDependencyCharts, len(c.Dependencies))
+	}
+
+}

pkg/chartutil/testdata/dependent-chart-alias/.helmignore

+ignore/

pkg/chartutil/testdata/dependent-chart-alias/Chart.yaml

+apiVersion: v1
+name: frobnitz
+description: This is a frobnitz.
+version: "1.2.3"
+keywords:
+  - frobnitz
+  - sprocket
+  - dodad
+maintainers:
+  - name: The Helm Team
+    email: helm@example.com
+  - name: Someone Else
+    email: nobody@example.com
+sources:
+  - https://example.com/foo/bar
+home: http://example.com
+icon: https://example.com/64x64.png

pkg/chartutil/testdata/dependent-chart-alias/INSTALL.txt

+This is an install document. The client may display this.

pkg/chartutil/testdata/dependent-chart-alias/LICENSE

+LICENSE placeholder.

pkg/chartutil/testdata/dependent-chart-alias/README.md

+# Frobnitz
+
+This is an example chart.
+
+## Usage
+
+This is an example. It has no usage.
+
+## Development
+
+For developer info, see the top-level repository.

pkg/chartutil/testdata/dependent-chart-alias/charts/_ignore_me

+This should be ignored by the loader, but may be included in a chart.

pkg/chartutil/testdata/dependent-chart-alias/charts/alpine/Chart.yaml

+name: alpine
+description: Deploy a basic Alpine Linux pod
+version: 0.1.0
+home: https://k8s.io/helm

pkg/chartutil/testdata/dependent-chart-alias/charts/alpine/README.md

+This example was generated using the command `helm create alpine`.
+
+The `templates/` directory contains a very simple pod resource with a
+couple of parameters.
+
+The `values.toml` file contains the default values for the
+`alpine-pod.yaml` template.
+
+You can install this example using `helm install docs/examples/alpine`.

pkg/chartutil/testdata/dependent-chart-alias/charts/alpine/charts/mast1/Chart.yaml

+name: mast1
+description: A Helm chart for Kubernetes
+version: 0.1.0
+home: ""

pkg/chartutil/testdata/dependent-chart-alias/charts/alpine/charts/mast1/values.yaml

+# Default values for mast1.
+# This is a YAML-formatted file.
+# Declare name/value pairs to be passed into your templates.
+# name = "value"

pkg/chartutil/testdata/dependent-chart-alias/charts/alpine/templates/alpine-pod.yaml

+apiVersion: v1
+kind: Pod
+metadata:
+  name: {{.Release.Name}}-{{.Chart.Name}}
+  labels:
+    heritage: {{.Release.Service}}
+    chartName: {{.Chart.Name}}
+    chartVersion: {{.Chart.Version | quote}}
+  annotations:
+    "helm.sh/created": "{{.Release.Time.Seconds}}"
+spec:
+  restartPolicy: {{default "Never" .restart_policy}}
+  containers:
+  - name: waiter
+    image: "alpine:3.3"
+    command: ["/bin/sleep","9000"]

pkg/chartutil/testdata/dependent-chart-alias/charts/alpine/values.yaml

+# The pod name
+name: "my-alpine"

pkg/chartutil/testdata/dependent-chart-alias/docs/README.md

+This is a placeholder for documentation.

pkg/chartutil/testdata/dependent-chart-alias/icon.svg

+<?xml version="1.0"?>
+<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg"
+    xmlns:xlink="http://www.w3.org/1999/xlink"
+    version="1.0" width="256" height="256" id="test">
+  <desc>Example icon</desc>
+  <rect id="first" x="2" y="2" width="40" height="60" fill="navy"/>
+  <rect id="second" x="15" y="4" width="40" height="60" fill="red"/>
+</svg>

pkg/chartutil/testdata/dependent-chart-alias/requirements.lock

+dependencies:
+  - name: alpine
+    version: "0.1.0"
+    repository: https://example.com/charts
+  - name: mariner
+    version: "4.3.2"
+    repository: https://example.com/charts
+digest: invalid

pkg/chartutil/testdata/dependent-chart-alias/requirements.yaml

+dependencies:
+  - name: alpine
+    version: "0.1.0"
+    repository: https://example.com/charts
+  - name: mariner
+    version: "4.3.2"
+    repository: https://example.com/charts
+    alias:
+    - mariners1
+    - mariners2

pkg/chartutil/testdata/dependent-chart-alias/templates/template.tpl

+Hello {{.Name | default "world"}}

pkg/chartutil/testdata/dependent-chart-alias/values.yaml

+# A values file contains configuration.
+
+name: "Some Name"
+
+section:
+  name: "Name in a section"