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authorPhillip Johnsen <johphi@gmail.com>2018-05-30T19·43+0200
committerVincent Ambo <github@tazj.in>2018-06-09T17·16+0200
commit5cf9d53e80accaeede1b4e38772d7d53c0190549 (patch)
treed41b60612f1993387267c4c17085c67a18cabe4f /context/context_test.go
parent09869cf8fca09d3b1076e4ee558b8ca9fc91b733 (diff)
feat(context): allow explicit variables to be defined as argument
These changes allows variables to be defined when executing
`kontemplate` via one or more `--variable` arguments.

With this in place one can either define new variables or override
existing variables loaded from a file:

```
$ kontemplate apply --variable version=v1.0 example/fancy-app.yaml
```

This avoids the need to write variables into a temporary file that is
only needed to provide "external variables" into resource sets.

Closes https://github.com/tazjin/kontemplate/issues/122
Diffstat (limited to 'context/context_test.go')
-rw-r--r--context/context_test.go22
1 files changed, 22 insertions, 0 deletions
diff --git a/context/context_test.go b/context/context_test.go
index 38b6a76e7aff..6dc27466a579 100644
--- a/context/context_test.go
+++ b/context/context_test.go
@@ -280,3 +280,25 @@ func TestExplicitSubresourcePathLoading(t *testing.T) {
 		t.Fail()
 	}
 }
+
+func TestSetVariablesFromArguments(t *testing.T) {
+	vars := []string{"version=some-service-version"}
+	ctx, _ := LoadContextFromFile("testdata/default-loading.yaml")
+
+	if err := ctx.SetVariablesFromArguments(&vars); err != nil {
+		t.Error(err)
+	}
+
+	if version := ctx.Global["version"]; version != "some-service-version" {
+		t.Errorf(`Expected variable "version" to have value "some-service-version" but was "%s"`, version)
+	}
+}
+
+func TestSetInvalidVariablesFromArguments(t *testing.T) {
+	vars := []string{"version: some-service-version"}
+	ctx, _ := LoadContextFromFile("testdata/default-loading.yaml")
+
+	if err := ctx.SetVariablesFromArguments(&vars); err == nil {
+		t.Error("Expected invalid variable to return an error")
+	}
+}