Add integration tests for #1749 (#1766)

* Add integration tests for #1749

Signed-off-by: Matthias Baur <m.baur@syseleven.de>

* Reset extra args on a higher level to only affect subsequent helmfiles

With the implementation before, extra args has been reset after each
helm.exec which leads to problems with multiple charts in a helmfile
since the correct args are only set once in Template(). But Template()
calls helm.exec(template) multiple times.

Signed-off-by: Matthias Baur <m.baur@syseleven.de>

---------

Signed-off-by: Matthias Baur <m.baur@syseleven.de>

test/integration/test-cases/issue-1749.sh

@@ -0,0 +1,12 @@
+issue_1749_input_dir="${cases_dir}/issue-1749/input"
+helmfile_real="$(pwd)/${helmfile}"
+
+test_start "issue 1749 helmfile.d template --args --dry-run=server"
+cd "${issue_1749_input_dir}"
+${helmfile_real} template --args --dry-run=server || fail "\"issue 1749 helmfile.d template --args --dry-run=server\" shouldn't fail"
+cd -
+test_pass "issue 1749 helmfile.d template --args --dry-run=server"
+
+test_start "issue 1749 helmfile.yaml template --args --dry-run=server"
+${helmfile_real} template -f "${issue_1749_input_dir}/helmfile-2in1.yaml.gotmpl" --args --dry-run=server || fail "\"issue 1749 helmfile.yaml template --args --dry-run=server\" shouldn't fail"
+test_pass "issue 1749 helmfile.yaml template --args --dry-run=server"

test/integration/test-cases/issue-1749/input/helmfile-2in1.yaml.gotmpl

@@ -0,0 +1,23 @@
+releases:
+  - name: test1
+    chart: ../../../charts/raw
+    values:
+      - templates:
+          - |
+            apiVersion: v1
+            kind: ConfigMap
+            metadata:
+              name: {{`{{ .Release.Name }}`}}
+            data:
+              foo: {{`{{ (first (lookup "v1" "Namespace" "" "").items).metadata.name }}`}}
+  - name: test2
+    chart: ../../../charts/raw
+    values:
+      - templates:
+          - |
+            apiVersion: v1
+            kind: ConfigMap
+            metadata:
+              name: {{`{{ .Release.Name }}`}}
+            data:
+              foo: {{`{{ (first (lookup "v1" "Namespace" "" "").items).metadata.name }}`}}

test/integration/test-cases/issue-1749/input/helmfile.d/helmfile1.yaml.gotmpl

@@ -0,0 +1,12 @@
+releases:
+  - name: test1
+    chart: ../../../../charts/raw
+    values:
+      - templates:
+          - |
+            apiVersion: v1
+            kind: ConfigMap
+            metadata:
+              name: {{`{{ .Release.Name }}`}}
+            data:
+              foo: {{`{{ (first (lookup "v1" "Namespace" "" "").items).metadata.name }}`}}

test/integration/test-cases/issue-1749/input/helmfile.d/helmfile2.yaml.gotmpl

@@ -0,0 +1,12 @@
+releases:
+  - name: test2
+    chart: ../../../../charts/raw
+    values:
+      - templates:
+          - |
+            apiVersion: v1
+            kind: ConfigMap
+            metadata:
+              name: {{`{{ .Release.Name }}`}}
+            data:
+              foo: {{`{{ (first (lookup "v1" "Namespace" "" "").items).metadata.name }}`}}