test: Add null tests to modules that don't have them (#1104)

Have added some null tests to modules that don't already have them.

7 files changed, 101 insertions, 0 deletions

diff --git a/tests/testsuite/git_branch.rs b/tests/testsuite/git_branch.rs
index 7fa5aaaef..c8504a4df 100644
--- a/tests/testsuite/git_branch.rs
+++ b/tests/testsuite/git_branch.rs
@@ -2,10 +2,26 @@ use ansi_term::Color;
 use remove_dir_all::remove_dir_all;
 use std::io;
 use std::process::Command;
+use tempfile;
 
 use crate::common::{self, TestCommand};
 
 #[test]
+fn show_nothing_on_empty_dir() -> io::Result<()> {
+    let repo_dir = tempfile::tempdir()?;
+
+    let output = common::render_module("git_branch")
+        .arg("--path")
+        .arg(repo_dir.path())
+        .output()?;
+    let actual = String::from_utf8(output.stdout).unwrap();
+
+    let expected = "";
+    assert_eq!(expected, actual);
+    repo_dir.close()
+}
+
+#[test]
 fn test_changed_truncation_symbol() -> io::Result<()> {
     test_truncate_length_with_config(
         "1337_hello_world",
diff --git a/tests/testsuite/git_commit.rs b/tests/testsuite/git_commit.rs
index d7ae8e771..cac148070 100644
--- a/tests/testsuite/git_commit.rs
+++ b/tests/testsuite/git_commit.rs
@@ -6,6 +6,21 @@ use std::{io, str};
 use crate::common::{self, TestCommand};
 
 #[test]
+fn show_nothing_on_empty_dir() -> io::Result<()> {
+    let repo_dir = tempfile::tempdir()?;
+
+    let output = common::render_module("git_commit")
+        .arg("--path")
+        .arg(repo_dir.path())
+        .output()?;
+    let actual = String::from_utf8(output.stdout).unwrap();
+
+    let expected = "";
+    assert_eq!(expected, actual);
+    repo_dir.close()
+}
+
+#[test]
 fn test_render_commit_hash() -> io::Result<()> {
     let repo_dir = common::create_fixture_repo()?;
 
diff --git a/tests/testsuite/git_state.rs b/tests/testsuite/git_state.rs
index e7da3939b..13a0eaed3 100644
--- a/tests/testsuite/git_state.rs
+++ b/tests/testsuite/git_state.rs
@@ -6,6 +6,21 @@ use std::process::{Command, Stdio};
 use tempfile;
 
 #[test]
+fn show_nothing_on_empty_dir() -> io::Result<()> {
+    let repo_dir = tempfile::tempdir()?;
+
+    let output = common::render_module("git_state")
+        .arg("--path")
+        .arg(repo_dir.path())
+        .output()?;
+    let actual = String::from_utf8(output.stdout).unwrap();
+
+    let expected = "";
+    assert_eq!(expected, actual);
+    repo_dir.close()
+}
+
+#[test]
 #[ignore]
 fn shows_rebasing() -> io::Result<()> {
     let repo_dir = create_repo_with_conflict()?;
diff --git a/tests/testsuite/git_status.rs b/tests/testsuite/git_status.rs
index 58bba46e9..eceadb3b7 100644
--- a/tests/testsuite/git_status.rs
+++ b/tests/testsuite/git_status.rs
@@ -4,6 +4,7 @@ use std::fs::{self, File};
 use std::io;
 use std::path::PathBuf;
 use std::process::Command;
+use tempfile;
 
 use crate::common::{self, TestCommand};
 
@@ -20,6 +21,21 @@ fn barrier() {
 }
 
 #[test]
+fn show_nothing_on_empty_dir() -> io::Result<()> {
+    let repo_dir = tempfile::tempdir()?;
+
+    let output = common::render_module("git_status")
+        .arg("--path")
+        .arg(repo_dir.path())
+        .output()?;
+    let actual = String::from_utf8(output.stdout).unwrap();
+
+    let expected = "";
+    assert_eq!(expected, actual);
+    repo_dir.close()
+}
+
+#[test]
 #[ignore]
 fn shows_behind() -> io::Result<()> {
     let repo_dir = common::create_fixture_repo()?;
diff --git a/tests/testsuite/hg_branch.rs b/tests/testsuite/hg_branch.rs
index df600b698..41bec34e6 100644
--- a/tests/testsuite/hg_branch.rs
+++ b/tests/testsuite/hg_branch.rs
@@ -17,6 +17,21 @@ enum Expect<'a> {
 }
 
 #[test]
+fn show_nothing_on_empty_dir() -> io::Result<()> {
+    let repo_dir = tempfile::tempdir()?;
+
+    let output = common::render_module("hg_branch")
+        .arg("--path")
+        .arg(repo_dir.path())
+        .output()?;
+    let actual = String::from_utf8(output.stdout).unwrap();
+
+    let expected = "";
+    assert_eq!(expected, actual);
+    repo_dir.close()
+}
+
+#[test]
 #[ignore]
 fn test_hg_get_branch_fails() -> io::Result<()> {
     let tempdir = tempfile::tempdir()?;
diff --git a/tests/testsuite/python.rs b/tests/testsuite/python.rs
index a432f5fec..ffc66612e 100644
--- a/tests/testsuite/python.rs
+++ b/tests/testsuite/python.rs
@@ -7,6 +7,21 @@ use tempfile;
 use crate::common::{self, TestCommand};
 
 #[test]
+fn show_nothing_on_empty_dir() -> io::Result<()> {
+    let dir = tempfile::tempdir()?;
+
+    let output = common::render_module("python")
+        .arg("--path")
+        .arg(dir.path())
+        .output()?;
+    let actual = String::from_utf8(output.stdout).unwrap();
+
+    let expected = "";
+    assert_eq!(expected, actual);
+    dir.close()
+}
+
+#[test]
 #[ignore]
 fn folder_with_python_version() -> io::Result<()> {
     let dir = tempfile::tempdir()?;
diff --git a/tests/testsuite/singularity.rs b/tests/testsuite/singularity.rs
index 26067baaa..84ae45e65 100644
--- a/tests/testsuite/singularity.rs
+++ b/tests/testsuite/singularity.rs
@@ -4,6 +4,15 @@ use std::io;
 use crate::common;
 
 #[test]
+fn no_env_set() -> io::Result<()> {
+    let output = common::render_module("singularity").output()?;
+    let actual = String::from_utf8(output.stdout).unwrap();
+
+    let expected = "";
+    assert_eq!(expected, actual);
+    Ok(())
+}
+#[test]
 fn env_set() -> io::Result<()> {
     let output = common::render_module("singularity")
         .env_clear()