Refactor integration tests (#71)

- Create subcommands to be able to print modules independently
	- `starship prompt` will print the full prompt
	- `starship module <MODULE_NAME>` will print a specific module
		e.g. `starship module python`
	- Added `--path` flag to print the prompt or modules without being in a specific directory
	- Added `--status` flag to provide the status of the last command, instead of requiring it as an argument
- Refactored integration tests to be end-to-end tests, since there was no way in integration tests to set the environment variables for a specific command, which was required for the `username` module
- Moved e2e tests to `tests/testsuite` to allow for a single binary to be built
	- Tests will build/run faster
	- No more false positives for unused functions
- Added tests for `username`
- Removed codecov + tarpaulin 😢 

1 files changed, 140 insertions, 0 deletions

diff --git a/tests/testsuite/golang.rs b/tests/testsuite/golang.rs
new file mode 100644
index 000000000..6419eefb7
--- /dev/null
+++ b/tests/testsuite/golang.rs
@@ -0,0 +1,140 @@
+use ansi_term::Color;
+use std::fs::{self, File};
+use std::io;
+
+use crate::common;
+
+#[test]
+fn folder_without_go_files() -> io::Result<()> {
+    let dir = common::new_tempdir()?;
+
+    let output = common::render_module("golang")
+        .arg("--path")
+        .arg(dir.path())
+        .output()?;
+    let actual = String::from_utf8(output.stdout).unwrap();
+
+    let expected = "";
+    assert_eq!(expected, actual);
+    Ok(())
+}
+
+#[test]
+#[ignore]
+fn folder_with_go_file() -> io::Result<()> {
+    let dir = common::new_tempdir()?;
+    File::create(dir.path().join("main.go"))?;
+
+    let output = common::render_module("golang")
+        .arg("--path")
+        .arg(dir.path())
+        .output()?;
+    let actual = String::from_utf8(output.stdout).unwrap();
+
+    let expected = format!("via {} ", Color::Cyan.bold().paint("🐹 v1.10"));
+    assert_eq!(expected, actual);
+    Ok(())
+}
+
+#[test]
+#[ignore]
+fn folder_with_go_mod() -> io::Result<()> {
+    let dir = common::new_tempdir()?;
+    File::create(dir.path().join("go.mod"))?;
+
+    let output = common::render_module("golang")
+        .arg("--path")
+        .arg(dir.path())
+        .output()?;
+    let actual = String::from_utf8(output.stdout).unwrap();
+
+    let expected = format!("via {} ", Color::Cyan.bold().paint("🐹 v1.10"));
+    assert_eq!(expected, actual);
+    Ok(())
+}
+
+#[test]
+#[ignore]
+fn folder_with_go_sum() -> io::Result<()> {
+    let dir = common::new_tempdir()?;
+    File::create(dir.path().join("go.sum"))?;
+
+    let output = common::render_module("golang")
+        .arg("--path")
+        .arg(dir.path())
+        .output()?;
+    let actual = String::from_utf8(output.stdout).unwrap();
+
+    let expected = format!("via {} ", Color::Cyan.bold().paint("🐹 v1.10"));
+    assert_eq!(expected, actual);
+    Ok(())
+}
+
+#[test]
+#[ignore]
+fn folder_with_godeps() -> io::Result<()> {
+    let dir = common::new_tempdir()?;
+    let godeps = dir.path().join("Godeps");
+    fs::create_dir_all(&godeps)?;
+
+    let output = common::render_module("golang")
+        .arg("--path")
+        .arg(dir.path())
+        .output()?;
+    let actual = String::from_utf8(output.stdout).unwrap();
+
+    let expected = format!("via {} ", Color::Cyan.bold().paint("🐹 v1.10"));
+    assert_eq!(expected, actual);
+    Ok(())
+}
+
+#[test]
+#[ignore]
+fn folder_with_glide_yaml() -> io::Result<()> {
+    let dir = common::new_tempdir()?;
+    File::create(dir.path().join("glide.yaml"))?;
+
+    let output = common::render_module("golang")
+        .arg("--path")
+        .arg(dir.path())
+        .output()?;
+    let actual = String::from_utf8(output.stdout).unwrap();
+
+    let expected = format!("via {} ", Color::Cyan.bold().paint("🐹 v1.10"));
+    assert_eq!(expected, actual);
+    Ok(())
+}
+
+#[test]
+#[ignore]
+fn folder_with_gopkg_yml() -> io::Result<()> {
+    let dir = common::new_tempdir()?;
+    File::create(dir.path().join("Gopkg.yml"))?;
+
+    let output = common::render_module("golang")
+        .arg("--path")
+        .arg(dir.path())
+        .output()?;
+    let actual = String::from_utf8(output.stdout).unwrap();
+
+    let expected = format!("via {} ", Color::Cyan.bold().paint("🐹 v1.10"));
+    assert_eq!(expected, actual);
+    Ok(())
+}
+
+#[test]
+#[ignore]
+fn folder_with_gopkg_lock() -> io::Result<()> {
+    let dir = common::new_tempdir()?;
+    File::create(dir.path().join("Gopkg.lock"))?;
+
+    let output = common::render_module("golang")
+        .arg("--path")
+        .arg(dir.path())
+        .output()?;
+    let actual = String::from_utf8(output.stdout).unwrap();
+
+    let expected = format!("via {} ", Color::Cyan.bold().paint("🐹 v1.10"));
+    assert_eq!(expected, actual);
+    Ok(())
+}