Added tests for different combinations of subcharts & requirements.yaml

Added more tests to test following comibnations of subcharts and requirements.yaml
- [ ] subcharts not specified in requirements.yaml
- [ ] some subcharts specified in requirements.yaml while others should be picked directly from "charts\"
- [ ] all subcharts specified in requirements.yaml without alias
- [ ] subcharts specified in requirements.yaml with alias is already tested

pkg/chartutil/requirements_test.go

@@ -383,3 +383,84 @@ func TestDependentChartAliases(t *testing.T) {
 	}
 
 }
+
+func TestDependentChartWithSubChartsAbsentInRequirements(t *testing.T) {
+	c, err := Load("testdata/dependent-chart-no-requirements-yaml")
+	if err != nil {
+		t.Fatalf("Failed to load testdata: %s", err)
+	}
+
+	if len(c.Dependencies) != 2 {
+		t.Fatalf("Expected 2 dependencies for this chart, but got %d", len(c.Dependencies))
+	}
+
+	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 no changes in dependencies to be, but did something got changed")
+	}
+
+}
+
+func TestDependentChartsWithSubchartsAllSpecifiedInRequirements(t *testing.T) {
+	c, err := Load("testdata/dependent-chart-with-all-in-requirements-yaml")
+	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 no changes in dependencies to be, but did something got changed")
+	}
+
+	reqmts, err := LoadRequirements(c)
+	if err != nil {
+		t.Fatalf("Cannot load requirements for test chart, %v", err)
+	}
+
+	if len(c.Dependencies) != len(reqmts.Dependencies) {
+		t.Fatalf("Expected number of chart dependencies %d, but got %d", len(reqmts.Dependencies), len(c.Dependencies))
+	}
+
+}
+
+func TestDependentChartsWithSomeSubchartsSpecifiedInRequirements(t *testing.T) {
+	c, err := Load("testdata/dependent-chart-with-mixed-requirements-yaml")
+	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 no changes in dependencies to be, but did something got changed")
+	}
+
+	reqmts, err := LoadRequirements(c)
+	if err != nil {
+		t.Fatalf("Cannot load requirements for test chart, %v", err)
+	}
+
+	if len(c.Dependencies) <= len(reqmts.Dependencies) {
+		t.Fatalf("Expected more dependencies than specified in requirements.yaml(%d), but got %d", len(reqmts.Dependencies), len(c.Dependencies))
+	}
+
+}

pkg/chartutil/testdata/dependent-chart-no-requirements-yaml/.helmignore

+ignore/

pkg/chartutil/testdata/dependent-chart-no-requirements-yaml/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-no-requirements-yaml/INSTALL.txt

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

pkg/chartutil/testdata/dependent-chart-no-requirements-yaml/LICENSE

+LICENSE placeholder.

pkg/chartutil/testdata/dependent-chart-no-requirements-yaml/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-no-requirements-yaml/charts/_ignore_me

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

pkg/chartutil/testdata/dependent-chart-no-requirements-yaml/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-no-requirements-yaml/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-no-requirements-yaml/charts/alpine/charts/mast1/Chart.yaml

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

pkg/chartutil/testdata/dependent-chart-no-requirements-yaml/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-no-requirements-yaml/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-no-requirements-yaml/charts/alpine/values.yaml

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

pkg/chartutil/testdata/dependent-chart-no-requirements-yaml/docs/README.md

+This is a placeholder for documentation.

pkg/chartutil/testdata/dependent-chart-no-requirements-yaml/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-no-requirements-yaml/templates/template.tpl

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

pkg/chartutil/testdata/dependent-chart-no-requirements-yaml/values.yaml

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