Adds e2e test for hab plan cli command

Signed-off-by: Jason Heath <jason.heath@progress.com>

Author: Jason Heath

test/end-to-end/test_hab_plan_cli.ps1

@@ -0,0 +1,109 @@
+Describe 'hab plan render' {
+
+    BeforeAll {
+        $tempdir = New-TemporaryDirectory
+
+        $output = hab plan render ./test/fixtures/render/consul/config/consul_config.json `
+            --default-toml ./test/fixtures/render/consul/default.toml `
+            --mock-data ./test/fixtures/render/consul/override.json `
+            --render-dir $tempdir `
+            --user-toml ./test/fixtures/render/consul/user.toml `
+            --print 2>&1
+        $output | Out-Null # for PSScriptAnalyzer which can't see actual usage
+
+        $outfile = Join-Path -Path $tempdir consul_config.json
+        $outfile | Out-Null # for PSScriptAnalyzer which can't see actual usage
+    }
+
+    AfterAll { Remove-Item -Path $tempdir -Recurse -Force }
+
+    It '--print should work' {
+        $output | Should -Not -BeNullOrEmpty
+    }
+
+    It '--render-dir should work' {
+        $outfile | Should -Exist
+    }
+
+    It '--default-toml should work' {
+        $outfile | Should -FileContentMatch 'IN_DEFAULT_TOML'
+    }
+
+    It '--mock-data should work' {
+        $outfile | Should -FileContentMatch 'IN_OVERRIDE_JSON'
+    }
+
+    It '--user-toml should work' {
+        $outfile | Should -FileContentMatch 'IN_USER_TOML'
+    }
+}
+
+Describe 'hab plan init' {
+
+    BeforeAll {
+        $testroot = Get-Location
+        $testroot | Out-Null # for PSScriptAnalyzer which can't see actual usage
+        if ($IsWindows) {
+            $plan_file = 'plan.ps1'
+        } else {
+            $plan_file = 'plan.sh'
+        }
+        $plan_file | Out-Null # for PSScriptAnalyzer which can't see actual usage
+        # This always be just hab for committed code but if you are working
+        # locally to extend or debug these tests then you can swap the
+        # variables to use your locally built hab binary
+        # $hab = Join-Path -Path $testroot target debug hab
+        $hab = 'hab'
+        $hab | Out-Null # for PSScriptAnalyzer which can't see actual usage
+    }
+
+    BeforeEach {
+        $tempdir = New-TemporaryDirectory
+        Set-Location $tempdir
+        $plan_path = Join-Path -Path $tempdir bar $plan_file
+        $plan_path | Out-Null # for PSScriptAnalyzer which can't see actual usage
+    }
+
+    AfterEach {
+        Set-Location $testroot
+        Remove-Item -Path $tempdir -Recurse -Force
+    }
+
+    # NOTE about the tests that follow.  When testing the scaffolding there was
+    # some weirdness with string interpolation where $ needed to be escaped even
+    # inside of a single quoted string and $ is Windows specific which we want
+    # to smooth over anyway.  So the scaffolding asserts intentionally drop '#'
+    # and '$' to just stay away from any weirdness at all.  In addition, there
+    # was an issue in which the code was defaulting to "core/scaffolding-ruby"
+    # even when the --scaffolding option wasn't specified so the explicit
+    # denial of "core/scaffolding-ruby" is about making sure that defaulting
+    # is not occuring somehow and testing "core/scaffolding-go" is about making
+    # sure the explicit choice was exercised.
+
+    It 'normal plan file (scaffolding placeholder)' {
+        Invoke-NativeCommand "$hab" plan init --origin foo bar 2>&1 | Out-Null
+        $plan_path | Should -Exist
+        $plan_path | Should -FileContentMatch "# This file is the heart of your application's habitat."
+        $plan_path | Should -FileContentMatch 'pkg_scaffolding="some/scaffolding"'
+        $plan_path | Should -Not -FileContentMatch 'pkg_scaffolding="core/scaffolding-ruby"'
+        $plan_path | Should -Not -FileContentMatch 'pkg_scaffolding="core/scaffolding-go"'
+    }
+
+    It 'minimal plan file (scaffolding placeholder)' {
+        Invoke-NativeCommand "$hab" plan init --origin foo --min bar 2>&1 | Out-Null
+        $plan_path | Should -Exist
+        $plan_path | Should -Not -FileContentMatch "# This file is the heart of your application's habitat."
+        $plan_path | Should -FileContentMatch 'pkg_scaffolding="some/scaffolding"'
+        $plan_path | Should -Not -FileContentMatch 'pkg_scaffolding="core/scaffolding-ruby"'
+        $plan_path | Should -Not -FileContentMatch 'pkg_scaffolding="core/scaffolding-go"'
+    }
+
+    It 'minimal plan file with scaffolding specified' {
+        Invoke-NativeCommand "$hab" plan init --origin foo --min --scaffolding go bar 2>&1 | Out-Null
+        $plan_path | Should -Exist
+        $plan_path | Should -Not -FileContentMatch "# This file is the heart of your application's habitat."
+        $plan_path | Should -Not -FileContentMatch 'pkg_scaffolding="some/scaffolding"'
+        $plan_path | Should -Not -FileContentMatch 'pkg_scaffolding="core/scaffolding-ruby"'
+        $plan_path | Should -FileContentMatch 'pkg_scaffolding="core/scaffolding-go"'
+    }
+}