Logf emits a structured logging line.

Exec runs the given command (with args) under the default configuration, allowing the caller to handle the error.

FileExists returns true if a file exists at the path joined by elem

TempDir creates a directory with the provided name in the buildpack temp layer and returns its path

ApplicationRoot returns the root folder of the application code.

Setenv is a pass through for os.Setenv(...) and returns any error with proper user / system attribution Note: this only sets an env var for the curren

Warnf emits a structured logging line for warnings.

New mocks the behavior of a shell command executed by a ctx.Exec call. `commandRegex` is the command to mock; the regex must match the full command th

MustGetPath returns the absolute path of a testdata file. The reason to have this function is blaze runs all tests from the runfiles directory and we

WriteFile is a pass through for ioutil.WriteFile(...) and returns any error with proper user / system attribution

ReadFile is a pass through for ioutil.ReadFile(...) and returns any error with proper user / system attribution

Layer returns a layer, creating its directory.

ProvisionImages provisions the builder, build, and run images necessary for running a test. The 'builderName' return value is the name of the builder

WithStdout configures what a mocked command prints to stdout.

MkdirAll is a pass through for os.Create(...) and returns any error with proper user / system attribution

RemoveAll is a pass through for os.RemoveAll(...) and returns any error with proper user / system attribution

TestDetect is a helper for testing a buildpack's implementation of /bin/detect. This MUST be called from a test function with the name `func TestDetec

SetValue sets the Metadata value with MetadataID id.

Name is the name of the layer.

TestApp builds and a single application and verifies that it runs and handles requests.

newDescriptor creates a new Descriptor.

DefineFlags sets up flags that control the behavior of the test runner.

NewContext creates a context.

GetCounter returns the Counter with MetricID m, or creates it

AddWebProcess adds the given command as the web start process, overwriting any previous web start process.

Errorf constructs an Error.

FilterTests returns a new slice with only tests that should be run. Tests are filtered out if their VersionInclusionConstraint does not match the `-ru

New creates and starts a test server with the provided configurations and returns its URL.

SetMetadata sets metadata on the layer.

Debugf emits a structured logging line if the debug flag is set.

GlobalBuilderMetrics returns a pointer to the BuilderMetrics singleton

GlobalBuilderMetadata returns a pointer to the BuilderMetadata singleton

Increment increases the value of a Counter by addend

Capability returns a capability from Context. This is used to retrieve injected dependencies/strategies, allowing buildpacks to behave differently dep

TestBuildFailure runs a build and ensures that it fails. Additionally, it ensures the emitted logs match mustMatch regexps.

ClearLayer erases the existing layer, and re-creates the directory.

WithMockURL stubs the provided URL to point to this test server for the duration of a unit test.

runOutput runs the given command and returns its stdout or an error.

GetMetadata gets metadata from the layer.

WithStatus sets the http response code to return.

WithExitCode configures what a mocked command uses as the exit code.

WithJSON sets the JSON payload the server send in the response body.

CommandExecuted returns true if the command was executed using ctx.Exec, otherwise returns false.

IsPresentAndTrue returns true if the environment variable evaluates to True.

WithFiles returns a cache option that hashes contents of the files. Callers can detect if a file did not exist by checking returned error values again

CacheHit records a cache hit debug message. This is used in acceptance test validation.

CacheMiss records a cache miss debug message. This is used in acceptance test validation.

NewBuilderMetrics returns a new, empty BuilderMetrics For testing use only

Symlink is a pass through for os.Symlink(...) and returns any error with proper user / system attribution

WithStrings returns a cache option for string values.

BuildpackRoot returns the root folder of the buildpack.

Glob is a pass through for filepath.Glob(...). It returns any error with proper user / system attribution.

Write writes the config to the default config file in a new layer.

IsGAE returns true if the buildpack target platform is gae.

ReadPackageJSONIfExists returns deserialized package.json from the given dir. If the provided dir does not contain a package.json file it returns nil.

NewBuilderMetadata returns a new, empty BuilderMetadata

Value retrieves the value of a Counter

InternalErrorf constructs an Error with status StatusInternal (Google-attributed SLO).

IsDevSync indicates that the builder is running in Dev Sync mode.

Add increases the value of a FloatDP by addend. Not threadsafe.

AddFrameworkVersionLabel sets the google.functions-framework-version label on the image.

CheckOverride returns a Detect result or nil based on the GOOGLE_RUNTIME environment variable value. o If the GOOGLE_RUNTIME environment variable i