test: add installation tests to acceptance tests

This commit adds a few scenarios of plugin installations to the test
suite, in order to document and ensure we behave appropriately when
installing pre-releases/metadata.

test/install_test.go

@@ -0,0 +1,49 @@
+package test
+
+func (ts *PackerTestSuite) TestInstallPluginWithMetadata() {
+	tempPluginDir, cleanup := ts.MakePluginDir("1.0.0+metadata")
+	defer cleanup()
+
+	ts.Run("metadata plugin installed must not have metadata in its path", func() {
+		ts.PackerCommand().UsePluginDir(tempPluginDir).
+			SetArgs("plugins", "installed").
+			Assert(ts.T(), MustSucceed{}, Grep{
+				streams: OnlyStdout,
+				expect:  "packer-plugin-tester_v1.0.0[^+]",
+			})
+	})
+
+	ts.Run("plugin with metadata should work with validate", func() {
+		ts.PackerCommand().UsePluginDir(tempPluginDir).
+			SetArgs("validate", "./templates/simple.pkr.hcl").
+			Assert(ts.T(), MustSucceed{}, Grep{
+				streams: OnlyStderr,
+				expect:  "packer-plugin-tester_v1.0.0[^+][^\\n]+plugin:",
+			})
+	})
+
+	ts.Run("plugin with metadata should work with build", func() {
+		ts.PackerCommand().UsePluginDir(tempPluginDir).
+			SetArgs("build", "./templates/simple.pkr.hcl").
+			Assert(ts.T(), MustSucceed{}, Grep{
+				streams: OnlyStderr,
+				expect:  "packer-plugin-tester_v1.0.0[^+][^\\n]+plugin:",
+			})
+	})
+}
+
+func (ts *PackerTestSuite) TestInstallPluginPrerelease() {
+	pluginPath := BuildSimplePlugin("1.0.1-alpha1", ts.T())
+
+	pluginDir, cleanup := ts.MakePluginDir()
+	defer cleanup()
+
+	ts.Run("try install plugin with alpha1 prerelease - should fail", func() {
+		ts.PackerCommand().UsePluginDir(pluginDir).
+			SetArgs("plugins", "install", "--path", pluginPath, "github.com/hashicorp/tester").
+			Assert(ts.T(), MustFail{}, Grep{
+				streams: OnlyStdout,
+				expect:  "Packer can only install plugin releases with this command",
+			})
+	})
+}

test/suite_test.go

@@ -34,8 +34,8 @@ func (ts *PackerTestSuite) buildPluginBinaries(t *testing.T) {
 	wg := &sync.WaitGroup{}
 
 	buildPluginVersion(wg, "1.0.0", t)
-	buildPluginVersion(wg, "1.0.1-dev", t)
-	buildPluginVersion(wg, "1.0.1", t)
+	buildPluginVersion(wg, "1.0.0+metadata", t)
+	buildPluginVersion(wg, "1.0.1-alpha1", t)
 	buildPluginVersion(wg, "1.0.9", t)
 	buildPluginVersion(wg, "1.0.10", t)